Document and Entity Information |
6 Months Ended |
|---|---|
|
Jun. 30, 2016
shares
| |
| Document And Entity Information [Abstract] | |
| Entity Registrant Name | QEP RESOURCES, INC. |
| Entity Central Index Key | 0001108827 |
| Current Fiscal Year End Date | --12-31 |
| Entity Well-known Seasoned Issuer | Yes |
| Entity Voluntary Filers | No |
| Entity Current Reporting Status | Yes |
| Entity Filer Category | Large Accelerated Filer |
| Entity Common Stock, Shares Outstanding | 239,605,692 |
| Document Fiscal Year Focus | 2016 |
| Document Fiscal Period Focus | Q2 |
| Document Type | 10-Q |
| Amendment Flag | false |
| Document Period End Date | Jun. 30, 2016 |
| X | ||||||||||
- Definition If the value is true, then the document is an amendment to previously-filed/accepted document. No definition available.
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- Definition End date of current fiscal year in the format --MM-DD. No definition available.
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- Definition This is focus fiscal period of the document report. For a first quarter 2006 quarterly report, which may also provide financial information from prior periods, the first fiscal quarter should be given as the fiscal period focus. Values: FY, Q1, Q2, Q3, Q4, H1, H2, M9, T1, T2, T3, M8, CY. No definition available.
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| X | ||||||||||
- Definition This is focus fiscal year of the document report in CCYY format. For a 2006 annual report, which may also provide financial information from prior periods, fiscal 2006 should be given as the fiscal year focus. Example: 2006. No definition available.
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- Definition The end date of the period reflected on the cover page if a periodic report. For all other reports and registration statements containing historical data, it is the date up through which that historical data is presented. If there is no historical data in the report, use the filing date. The format of the date is CCYY-MM-DD. No definition available.
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- Definition The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word "Other". No definition available.
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- Definition A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Indicate number of shares or other units outstanding of each of registrant's classes of capital or common stock or other ownership interests, if and as stated on cover of related periodic report. Where multiple classes or units exist define each class/interest by adding class of stock items such as Common Class A [Member], Common Class B [Member] or Partnership Interest [Member] onto the Instrument [Domain] of the Entity Listings, Instrument. No definition available.
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- Definition Indicate "Yes" or "No" whether registrants (1) have filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that registrants were required to file such reports), and (2) have been subject to such filing requirements for the past 90 days. This information should be based on the registrant's current or most recent filing containing the related disclosure. No definition available.
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| X | ||||||||||
- Definition Indicate whether the registrant is one of the following: (1) Large Accelerated Filer, (2) Accelerated Filer, (3) Non-accelerated Filer, (4) Smaller Reporting Company (Non-accelerated) or (5) Smaller Reporting Accelerated Filer. Definitions of these categories are stated in Rule 12b-2 of the Exchange Act. This information should be based on the registrant's current or most recent filing containing the related disclosure. No definition available.
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- Definition The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Indicate "Yes" or "No" if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act. No definition available.
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- Definition Indicate "Yes" or "No" if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Is used on Form Type: 10-K, 10-Q, 8-K, 20-F, 6-K, 10-K/A, 10-Q/A, 20-F/A, 6-K/A, N-CSR, N-Q, N-1A. No definition available.
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- Definition Document and Entity Information [Abstract] No definition available.
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CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) shares in Millions, $ in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2016 |
Jun. 30, 2015 |
Jun. 30, 2016 |
Jun. 30, 2015 |
|
| REVENUES | ||||
| Gas sales | $ 79.2 | $ 111.9 | $ 164.3 | $ 233.9 |
| Oil sales | 207.7 | 250.4 | 351.5 | 429.2 |
| NGL sales | 22.8 | 26.1 | 36.4 | 45.2 |
| Other revenue | (0.5) | 5.2 | 1.8 | 9.6 |
| Purchased gas and oil sales | 24.5 | 181.0 | 41.0 | 324.8 |
| Total Revenues | 333.7 | 574.6 | 595.0 | 1,042.7 |
| OPERATING EXPENSES | ||||
| Purchased gas and oil expense | 26.8 | 183.2 | 43.7 | 329.1 |
| Lease operating expense | 52.6 | 57.1 | 112.6 | 118.9 |
| Gas, oil and NGL transportation and other handling costs | 69.5 | 73.0 | 143.1 | 138.1 |
| Gathering and other expense | 1.6 | 1.4 | 2.9 | 3.1 |
| General and administrative | 43.7 | 51.3 | 92.4 | 98.7 |
| Production and property taxes | 20.7 | 32.7 | 38.5 | 60.5 |
| Depreciation, depletion and amortization | 209.7 | 215.8 | 449.7 | 411.2 |
| Exploration expenses | 0.4 | 0.8 | 0.7 | 1.9 |
| Impairment | 0.8 | 0.5 | 1,183.2 | 20.5 |
| Total operating expenses | 425.8 | 615.8 | 2,066.8 | 1,182.0 |
| Net gain (loss) from asset sales | (0.8) | 24.5 | ||
| OPERATING INCOME (LOSS) | (92.9) | (16.7) | (1,472.1) | (145.3) |
| Realized and unrealized gains (losses) on derivative contracts (See Note 7) | (180.5) | (66.0) | (129.6) | 14.9 |
| Interest and other income (expense) | (0.3) | 3.8 | 2.0 | 1.2 |
| Interest expense | (36.6) | (36.2) | (73.3) | (73.0) |
| INCOME (LOSS) BEFORE INCOME TAXES | (310.3) | (115.1) | (1,673.0) | (202.2) |
| Income tax (provision) benefit | 113.3 | 38.8 | 612.2 | 70.3 |
| NET INCOME (LOSS) | $ (197.0) | $ (76.3) | $ (1,060.8) | $ (131.9) |
| Earnings per common share | ||||
| Earnings Per Share, Basic | $ (0.90) | $ (0.43) | $ (5.21) | $ (0.75) |
| Earnings Per Share, Diluted | $ (0.90) | $ (0.43) | $ (5.21) | $ (0.75) |
| Weighted-average common shares outstanding | ||||
| Used in basic calculation (in shares) | 217.7 | 176.7 | 203.7 | 176.4 |
| Used in diluted calculation (in shares) | 217.7 | 176.7 | 203.7 | 176.4 |
| Dividends per common share (in dollars per share) | $ 0.00 | $ 0.02 | $ 0.00 | $ 0.04 |
| X | ||||||||||
- Definition Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Aggregate dividends paid during the period for each share of common stock outstanding. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Exploration expenses (including prospecting) related to oil and gas producing entities and would be included in operating expenses of that entity. Costs incurred in identifying areas that may warrant examination and in examining specific areas that are considered to have prospects of containing oil and gas reserves, including costs of drilling exploratory wells and exploratory-type stratigraphic test wells. Exploration costs may be incurred both before acquiring the related property (sometimes referred to in part as prospecting costs) and after acquiring the property. Principal types of exploration costs, which include depreciation and applicable operating costs of support equipment and facilities and other costs of exploration activities, are: (i) Costs of topographical, geographical and geophysical studies, rights of access to properties to conduct those studies, and salaries and other expenses of geologists, geophysical crews, and others conducting those studies. Collectively, these are sometimes referred to as geological and geophysical or "G&G" costs. (ii) Costs of carrying and retaining undeveloped properties, such as delay rentals, ad valorem taxes on properties, legal costs for title defense, and the maintenance of land and lease records. (iii) Dry hole contributions and bottom hole contributions. (iv) Costs of drilling and equipping exploratory wells. (v) Costs of drilling exploratory-type stratigraphic test wells. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount of gain (loss) on sale or disposal of property, plant and equipment assets, including oil and gas property and timber property. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Aggregate gain on all derivative instruments recognized in earnings during the period, before tax effects. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Cost incurred related to the gas activities, such as transportation, marketing and processing crude oil, natural gas and refined petroleum products. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Revenue related to midstream and downstream gas activities. May include the following: gathering from wells, processing to remove impurities, storage, transmission, and the sale of natural gas and related products. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition The aggregate total of expenses of managing and administering the affairs of an entity, including affiliates of the reporting entity, which are not directly or indirectly associated with the manufacture, sale or creation of a product or product line. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of the cost of borrowed funds accounted for as interest expense. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount of operating interest income, including, but not limited to, amortization and accretion of premiums and discounts on securities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount of lease operating expense related to property used in oil and gas production. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Midstream refers to those gas industry activities that fall between exploration and production (upstream) and refining and marketing (downstream). It may be applied to the gathering, processing, transmission and storage of natural gas; including the treating of natural gas to remove impurities, along with the sale of by-products such as residue gas, natural gas liquids and condensate. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Revenue from natural gas production during the reporting period. Natural gas consists largely of the hydrocarbon methane, and is found in underground formations either by itself or with crude oil. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Revenue from sale of residue oil and condensate, which normally exists in the reservoir as gas but condenses out as a liquid during production. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Aggregate revenue during the period related to oil and gas business activities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Includes selling, general and administrative expense. No definition available.
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition The net result for the period of deducting operating expenses from operating revenues. No definition available.
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| X | ||||||||||
- Definition A tax assessed on oil and gas production. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Cost incurred related to the downstream oil and gas activities, including refining of crude oil and marketing and distribution of crude oil, refined petroleum products, and natural gas. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Revenue related to the downstream oil and gas activities, including the refining of crude oil, as well as the marketing and distribution of crude oil, refined petroleum products, and natural gas. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Depreciation, depletion, amortization, and accretion related to oil and gas producing activities. No definition available.
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| X | ||||||||||
- Definition Income before income taxes for oil and gas producing activities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- References No definition available.
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| X | ||||||||||
- Definition Cost incurred during the reporting period in transporting goods and services to customers. Includes freight-out costs. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | |||||||
|---|---|---|---|---|---|---|---|---|---|
Jun. 30, 2016 |
Jun. 30, 2015 |
Jun. 30, 2016 |
Jun. 30, 2015 |
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| Statement of Comprehensive Income [Abstract] | |||||||||
| Net income (loss) | $ (197.0) | $ (76.3) | $ (1,060.8) | $ (131.9) | |||||
| Pension and other postretirement plans adjustments: | |||||||||
| Amortization of net actuarial losses | [1] | 0.2 | 0.0 | 0.3 | 0.2 | ||||
| Amortization of prior service costs | [2] | 0.2 | 0.1 | 0.3 | 0.6 | ||||
| Other comprehensive income | 0.4 | 0.1 | 0.6 | 0.8 | |||||
| Comprehensive income (loss) | $ (196.6) | $ (76.2) | $ (1,060.2) | $ (131.1) | |||||
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- Definition Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Amount after tax of reclassification adjustment from accumulated other comprehensive (income) loss for prior service cost (credit) related to pension and other postretirement benefit plans. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount after tax and reclassification adjustments of other comprehensive income (loss). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount after tax of reclassification adjustment from accumulated other comprehensive income (loss) for actuarial gain (loss) related to pension and other postretirement benefit plans. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- References No definition available.
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CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) (Parenthetical) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2016 |
Jun. 30, 2015 |
Jun. 30, 2016 |
Jun. 30, 2015 |
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| Pension and other postretirement plans adjustments: | ||||
| Amortization of net actuarial loss, income tax expense | $ (0.2) | $ 0.0 | $ (0.3) | $ (0.1) |
| Amortization of prior service cost, income tax expense | $ (0.2) | $ (0.1) | $ (0.2) | $ (0.4) |
| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Amount of tax expense (benefit) related to (increase) decrease in the value of the projected benefit obligation related to a change in an actuarial assumption and increase (decrease) in the value of the plan assets resulting from experience different from that assumed, that has not been recognized in net periodic benefit (cost) credit. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount of tax (expense) benefit of reclassification adjustment from accumulated other comprehensive (income) loss for prior service cost (credit) related to pension and other postretirement benefit plans. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Sum of the carrying values as of the balance sheet date of obligations incurred through that date and due within one year (or the operating cycle, if longer), including liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received, taxes, interest, rent and utilities, accrued salaries and bonuses, payroll taxes and fringe benefits. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Carrying value as of the balance sheet date of obligations incurred and payable for real and property taxes. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Value received from shareholders in common stock-related transactions that are in excess of par value or stated value and amounts received from other stock-related transactions. Includes only common stock transactions (excludes preferred stock transactions). May be called contributed capital, capital in excess of par, capital surplus, or paid-in capital. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Noncurrent portion of the carrying amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Sum of the carrying amounts as of the balance sheet date of all assets that are expected to be realized in cash, sold, or consumed within one year (or the normal operating cycle, if longer). Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Carrying value as of the balance sheet date of payments made in excess of existing cash balances, which will be honored by the bank but reflected as a loan to the entity. Overdrafts generally have a very short time frame for correction or repayment and are therefore more similar to short-term bank financing than trade financing. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Represents the caption on the face of the balance sheet to indicate that the entity has entered into (1) purchase or supply arrangements that will require expending a portion of its resources to meet the terms thereof, and (2) is exposed to potential losses or, less frequently, gains, arising from (a) possible claims against a company's resources due to future performance under contract terms, and (b) possible losses or likely gains from uncertainties that will ultimately be resolved when one or more future events that are deemed likely to occur do occur or fail to occur. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Aggregate par or stated value of issued nonredeemable common stock (or common stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable common shares, par value and other disclosure concepts are in another section within stockholders' equity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences, with jurisdictional netting and classified as noncurrent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Carrying amount as of the balance sheet date of the asset arising from derivative instruments and hedging activities, which are expected to be converted into cash or otherwise disposed of within a year or the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Carrying amount as of the balance sheet date of the assets arising from derivative contracts and hedging activities, which are expected to be converted into cash or otherwise disposed of after a year or beyond the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled within one year or normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled after one year or the normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Carrying amount as of the balance sheet date of merchandise, goods, commodities, or supplies relating to a source of usable power held for future sale or future use in manufacturing or production process. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Carrying amount due within one year of the balance sheet date (or one operating cycle, if longer) from tax authorities as of the balance sheet date representing refunds of overpayments or recoveries based on agreed-upon resolutions of disputes. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Carrying value as of the balance sheet date of [accrued] interest payable on all forms of debt, including trade payables, that has been incurred and is unpaid. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Carrying amount as of the balance sheet date of inventories of minerals, materials and supplies related to long-term drilling operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount of liabilities and equity items, including the portion of equity attributable to noncontrolling interests, if any. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Total obligations incurred as part of normal operations that are expected to be paid during the following twelve months or within one business cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount of accumulated depreciation, depletion and amortization of oil and gas property carried under the successful effort method. Oil and gas property include, but not limited to, the entity's wells and related equipment and facilities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of noncurrent assets classified as other. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of liabilities classified as other, due after one year or the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of asset related to consideration paid in advance for costs that provide economic benefits in future periods, and amount of other assets that are expected to be realized or consumed within one year or the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount before accumulated depreciation, depletion and amortization of other physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of accumulated depreciation of long-lived, physical assets used to produce goods and services and not intended for resale, classified as other. No definition available.
|
| X | ||||||||||
- Definition Oil and Gas properties with proved reserves under the successful effort method. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The cumulative amount of the reporting entity's undistributed earnings or deficit. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition The amount allocated to treasury stock. Treasury stock is common and preferred shares of an entity that were issued, repurchased by the entity, and are held in its treasury. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Oil and Gas properties with unproved reserves under the successful effort method. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical) - $ / shares shares in Millions |
Jun. 30, 2016 |
Dec. 31, 2015 |
|---|---|---|
| EQUITY | ||
| Common stock, par value (in dollars per share) | $ 0.01 | $ 0.01 |
| Common stock, shares authorized (in shares) | 500.0 | 500.0 |
| Common stock, shares issued (in shares) | 240.6 | 177.3 |
| Treasury stock (in shares) | 1.0 | 0.5 |
| X | ||||||||||
- Definition Face amount or stated value per share of common stock. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The maximum number of common shares permitted to be issued by an entity's charter and bylaws. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Number of common and preferred shares that were previously issued and that were repurchased by the issuing entity and held in treasury on the financial statement date. This stock has no voting rights and receives no dividends. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount after tax and reclassification adjustments, of (increase) decrease in accumulated other comprehensive (income) loss related to pension and other postretirement defined benefit plans. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Number of shares of stock issued as of the balance sheet date, including shares that had been issued and were previously outstanding but which are now held in the treasury. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Value, after forfeitures, of stock or other type of equity granted of any equity-based compensation plan other than an employee stock ownership plan (ESOP). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Number of new stock issued during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Number of shares (or other type of equity) issued during the period as a result of any equity-based compensation plan other than an employee stock ownership plan (ESOP), net of any shares forfeited. Shares issued could result from the issuance of restricted stock, the exercise of stock options, stock issued under employee stock purchase plans, and/or other employee benefit plans. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Number of treasury shares (units) reissued during the period, excluding reissuance of shares (units) held in treasury used to satisfy equity-based compensation obligations exercised by the holders of such rights. Upon reissuance of shares (units) from treasury, either the common or preferred stock (unit) reissued is outstanding. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Equity impact of the value of new stock issued during the period. Includes shares issued in an initial public offering or a secondary public offering. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Value of stock (or other type of equity) issued during the period as a result of any equity-based compensation plan other than an employee stock ownership plan (ESOP), net of stock value of such awards forfeited. Stock issued could result from the issuance of restricted stock, the exercise of stock options, stock issued under employee stock purchase plans, and/or other employee benefit plans. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Number of increase (decrease) in shares of stock classified as other. No definition available.
|
| X | ||||||||||
- Definition Number of common and preferred shares that were previously issued and that were repurchased by the issuing entity and held in treasury on the financial statement date. This stock has no voting rights and receives no dividends. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Definition acquisition deposit held in escrow No definition available.
|
| X | ||||||||||
- Definition Excess tax (provision) benefit on share-based compensation No definition available.
|
| X | ||||||||||
- Definition Other Operating Activities, Curtailment Loss No definition available.
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount of amortization expense attributable to debt discount (premium) and debt issuance costs. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Future cash outflow to pay for purchases of fixed assets that have occurred. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of increase (decrease) in cash and cash equivalents. Cash and cash equivalents are the amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Includes effect from exchange rate changes. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of gain (loss) on sale or disposal of property, plant and equipment assets, excluding oil and gas property and timber property. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income, net of any cash received during the current period as refunds for the overpayment of taxes. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The increase (decrease) during the reporting period of all assets and liabilities used in operating activities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The change in cash during the period due to the net increase or decrease in outstanding checks, the liability that represents checks that have been issued but that have not cleared. The entity may classify these cash flows as financing or operating activities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition The amount of cash paid for interest during the period net of cash paid for interest that is capitalized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition This item represents the total unrealized gain (loss) included in earnings for the period as a result of holding marketable securities categorized as trading, including the unrealized holding gain (loss) of held-to-maturity securities transferred to the trading security category and the cumulative unrealized gain (loss) which was included in other comprehensive income (a separate component of shareholders' equity) for available-for-sale securities transferred to trading securities during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount of cash inflow (outflow) of financing activities, excluding discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount of cash inflow (outflow) of investing activities, excluding discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount of cash inflow (outflow) from operating activities, excluding discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition The cash outflow to reacquire common stock during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of cash outflow in the form of ordinary dividends to common shareholders of the parent entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The cash outflow to purchase long lived physical asset use for the normal oil and gas operations and not intended for resale. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The cash outflow to purchase of mineral interests in oil and gas properties for use in the normal oil and gas operations and not intended for resale. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The cash inflow from the additional capital contribution to the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount of cash inflow from the issuance of equity classified as other. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition The cash inflow to dispose of long-lived, physical assets and mineral interests in oil and gas properties used for normal oil and gas operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of derivative instruments, including options, swaps, futures, and forward contracts, held at each balance sheet date, that was included in earnings for the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Basis of Presentation |
6 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Jun. 30, 2016 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Organization, Consolidation and Presentation of Financial Statements [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Basis of Presentation [Text Block] | Nature of Business QEP Resources, Inc. is an independent natural gas and crude oil exploration and production company focused in two regions of the United States: the Northern Region (primarily in Wyoming, North Dakota and Utah) and the Southern Region (primarily in Texas and Louisiana). Unless otherwise specified or the context otherwise requires, all references to "QEP" or the "Company" are to QEP Resources, Inc. and its subsidiaries on a consolidated basis. QEP's corporate headquarters are located in Denver, Colorado and shares of QEP's common stock trade on the New York Stock Exchange (NYSE) under the ticker symbol "QEP". Basis of Presentation of Interim Condensed Consolidated Financial Statements The interim Condensed Consolidated Financial Statements contain the accounts of QEP and its majority-owned or controlled subsidiaries. The Condensed Consolidated Financial Statements were prepared in accordance with United States Generally Accepted Accounting Principles (GAAP) and with the instructions for Quarterly Reports on Form 10-Q and Regulations S-X and S-K. All significant intercompany accounts and transactions have been eliminated in consolidation. The Condensed Consolidated Financial Statements reflect all normal recurring adjustments and accruals that are, in the opinion of management, necessary for a fair statement of financial position and results of operations for the interim periods presented. Interim condensed consolidated financial statements and the year-end balance sheet do not include all of the information and notes required by GAAP for audited annual consolidated financial statements. These Condensed Consolidated Financial Statements should be read in conjunction with the Consolidated Financial Statements and Notes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2015. The preparation of the Condensed Consolidated Financial Statements and Notes in conformity with GAAP requires that management make estimates and assumptions that affect revenues, expenses, assets and liabilities, and disclosure of contingent assets and liabilities. Actual results could differ from estimates. The results of operations for the three and six months ended June 30, 2016, are not necessarily indicative of the results that may be expected for the year ending December 31, 2016. Equity Offerings In June 2016, QEP issued 23.0 million additional shares of common stock through a public offering and received net proceeds of approximately $413.0 million. QEP intends to use the net proceeds from this offering to partially fund the 2016 Permian Acquisition (defined below). If the acquisition is not consummated, QEP intends to use the net proceeds from this offering for general corporate purposes, which may include, among other things, reducing indebtedness, acquiring properties and funding a portion of our exploration and production activities and working capital. In March 2016, QEP issued 37.95 million additional shares of common stock through a public offering and received net proceeds of approximately $368.6 million. QEP used the net proceeds from this offering for general corporate purposes. Termination of Marketing Agreements and QEP Marketing Segment Effective January 1, 2016, QEP terminated its contracts for resale and marketing transactions between its wholly owned subsidiaries, QEP Marketing Company (QEP Marketing) and QEP Energy Company (QEP Energy). In addition, substantially all of QEP Marketing's third-party purchase and sale agreements and gathering, processing and transportation contracts were assigned to QEP Energy, except those contracts related to natural gas storage activities and the Haynesville gathering system. As a result, QEP Energy is directly marketing its own gas, oil and NGL production. While QEP will continue to act as an agent for the sale of gas, oil and NGL production for other working interest owners, for whom QEP serves as the operator, QEP is no longer the first purchaser of this production. QEP has substantially reduced its marketing activities, and subsequently, is reporting lower resale revenue and expenses than it had in prior periods. In conjunction with the changes described above, QEP conducted a segment analysis in accordance with Accounting Standards Codification (ASC) Topic 280, Segment Reporting, and determined that QEP has one reportable segment effective January 1, 2016. Revision of Financial Statements In the fourth quarter of 2015, the Company determined that certain transactions that had been reported on a gross basis and included in "Purchased gas and oil sales" and "Purchased gas and oil expense" on the Condensed Consolidated Statement of Operations for the three and six months ended June 30, 2015, should have been reported on a net basis, as the transactions were with the same counterparty and were entered into in contemplation of one another. The Company revised its financial statements to reflect the net accounting treatment and assessed the cumulative impact of the revisions on each period affected. The revisions had no effect on the Company’s operating income, net income, earnings per share, cash flows or retained earnings. The Company determined that the impact of the change from gross to net accounting was not material, either individually or in the aggregate, to previously issued financial statements. The Company has, for comparability purposes, recast its Condensed Consolidated Statement of Operations for the three and six months ended June 30, 2015. The following table details the impact of these revisions for the three and six months ended June 30, 2015, on the Condensed Consolidated Statement of Operations.
Reclassifications Certain prior period balances in the Condensed Consolidated Balance Sheets have been reclassified to conform to the current year presentation. Such reclassifications had no effect on the Company's operating income, net income, earnings per share, cash flows or retained earnings previously reported. Impairment of Long-Lived Assets During the six months ended June 30, 2016, QEP recorded impairment expense of $1,183.2 million, of which $1,167.9 million was related to proved properties due to lower future oil and gas prices, $11.6 million was related to expiring leaseholds on unproved properties and $3.7 million was related to an impairment of goodwill. Of the $1,167.9 million impairment on proved properties, $1,164.0 million related to Pinedale properties, $3.5 million related to Other Northern properties and $0.4 million related to Other Southern properties. New Accounting Pronouncements In February 2016, the Financial Accounting Standards Board (FASB) issued ASU No. 2016-02, Leases (Topic 842), which requires lessees to recognize the lease assets and lease liabilities classified as operating leases on the balance sheet and disclosing key quantitative and qualitative information about leasing arrangements. The amendment will be effective for reporting periods beginning on or after December 15, 2018, and early adoption is permitted. The Company is currently assessing the impact of the ASU on the Company's Condensed Consolidated Financial Statements. In March 2016, the FASB issued ASU No. 2016-06, Derivatives and hedging (Topic 815): Contingent put and call options in debt instruments, which clarifies the requirements for assessing whether contingent call (put) options that can accelerate the payment of principal on debt instruments are clearly and closely related to their debt hosts. The amendment will be effective prospectively for reporting periods beginning on or after December 31, 2016, and early adoption is permitted. The Company is currently assessing the impact of the ASU on the Company's Condensed Consolidated Financial Statements. In March 2016, the FASB issued ASU No. 2016-08, Revenue from contracts with customers (Topic 606): Principal versus agent considerations (reporting revenue gross versus net), which clarifies the implementation guidance on principle versus agent considerations. The amendment will be effective prospectively for reporting periods beginning on or after December 31, 2017, and early adoption is permitted for periods beginning on or after December 31, 2016. The Company is currently assessing the impact of the ASU on the Company's Condensed Consolidated Financial Statements. In March 2016, the FASB issued ASU No. 2016-09, Compensation – Stock Compensation (Topic 718): Improvements to employee share-based payment accounting, which includes provisions intended to simplify various aspects related to how share-based compensation payments are accounted for and presented in the financial statements. This amendment will be effective prospectively for reporting periods beginning on or after December 15, 2016, and early adoption is permitted. The Company is currently assessing the impact of the ASU on the Company's Condensed Consolidated Financial Statements. In April 2016, the FASB issued ASU No. 2016-10, Revenue from contracts with customers (Topic 606): Identifying performance obligations and licensing, which clarifies guidance related to identifying performance obligations and licensing implementation guidance contained in the new revenue recognition standard. This amendment will be effective prospectively for reporting periods beginning on or after December 15, 2017, and early adoption is permitted for periods beginning on or after December 31, 2016. The Company is currently assessing the impact of the ASU on the Company's Condensed Consolidated Financial Statements. In May 2016, the FASB issued ASU No. 2016-11, Revenue recognition (Topic 605) and Derivatives and hedging (Topic 815): Rescission of SEC guidance because of ASU 2014-09 and 2014-16, which rescinds certain SEC staff observer comments that are codified in Topic 605, Revenue Recognition. This amendment will be effective prospectively for reporting periods beginning on or after December 15, 2017, and early adoption is permitted for periods beginning on or after December 31, 2016. The Company is currently assessing the impact of the ASU on the Company's Condensed Consolidated Financial Statements. In May 2016, the FASB issued ASU No. 2016-12, Revenue from contracts with customers (Topic 606): Narrow-scope improvements and practical expedients, which intends to reduce the cost and complexity of applying the new revenue standard by narrowing the scope of improvements to the guidance on collectability, non-cash consideration, and completed contracts at transition. This amendment will be effective prospectively for reporting periods beginning on or after December 15, 2017, and early adoption is permitted for periods beginning on or after December 31, 2016. The Company is currently assessing the impact of the ASU on the Company's Condensed Consolidated Financial Statements. |
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| X | ||||||||||
- Definition The entire disclosure for the nature of an entity's business, major products or services, principal markets including location, and the relative importance of its operations in each business and the basis for the determination, including but not limited to, assets, revenues, or earnings. For an entity that has not commenced principal operations, disclosures about the risks and uncertainties related to the activities in which the entity is currently engaged and an understanding of what those activities are being directed toward. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- References No definition available.
|
Acquisitions & Divestitures |
6 Months Ended |
|---|---|
Jun. 30, 2016 | |
| Business Combinations [Abstract] | |
| Acquisitions & Divestitures [Text Block] | In June 2016, QEP entered into a purchase and sale agreement to acquire oil and gas properties in the Permian Basin for an aggregate purchase price of approximately $600.0 million, subject to customary purchase price adjustments (the 2016 Permian Acquisition). The 2016 Permian Acquisition consists of approximately 9,400 net acres in Martin County, Texas, which are primarily held by production from 96 vertical wells. The 2016 Permian Acquisition is expected to close in September 2016, and the Company plans to fund the transaction with proceeds from the June 2016 equity offering and cash on hand. During the six months ended June 30, 2016, QEP acquired various oil and gas properties, primarily in the Williston and Permian basins, for an aggregate purchase price of $29.8 million, which primarily included additional interests in QEP's operated wells and additional undeveloped leasehold. As a part of the purchase price allocation, the Company recorded $3.7 million of goodwill. During the six months ended June 30, 2016, QEP received proceeds of $23.7 million and recorded a pre-tax loss on sale of $0.3 million primarily related to the divestiture of certain non-core properties in Other Southern. Additionally, during the six months ended June 30, 2015, QEP recorded a pre-tax loss on sale of $6.0 million, primarily due to post-closing purchase price adjustments related to 2014 divestitures. |
| X | ||||||||||
- References No definition available.
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- Definition The entire disclosure for business combinations, including leverage buyout transactions (as applicable), and divestitures. This may include a description of a business combination or divestiture (or series of individually immaterial business combinations or divestitures) completed during the period, including background, timing, and assets and liabilities recognized and reclassified or sold. This element does not include fixed asset sales and plant closings. No definition available.
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Earnings Per Share |
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| Earnings Per Share [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Earnings Per Share [Text Block] | Basic earnings per share (EPS) are computed by dividing net income by the weighted-average number of common shares outstanding during the reporting period. Diluted EPS includes the potential increase in the number of outstanding shares that could result from the exercise of in-the-money stock options. QEP’s unvested restricted shares are included in weighted-average basic common shares outstanding because, once the shares are granted, the restricted shares are considered issued and outstanding, the historical forfeiture rate is minimal and the restricted shares are eligible to receive dividends. Unvested share-based payment awards that contain non-forfeitable rights to dividends or dividend equivalents are considered participating securities and are included in the computation of earnings per share pursuant to the two-class method. The Company’s unvested restricted stock awards contain non-forfeitable dividend rights and participate equally with common stock with respect to dividends issued or declared. However, the Company’s unvested restricted stock does not have a contractual obligation to share in losses of the Company. The Company’s unexercised stock options do not contain rights to dividends. Under the two-class method, the earnings used to determine basic earnings per common share are reduced by an amount allocated to participating securities. When the Company records a net loss, none of the loss is allocated to the participating securities since the securities are not obligated to share in Company losses. Use of the two-class method has an insignificant impact on the calculation of basic and diluted earnings per common share. During the three and six months ended June 30, 2016, there were anti-dilutive shares of 0.1 million not included in diluted common shares outstanding as they were anti-dilutive due to QEP's net loss. During the three and six months ended June 30, 2015, there were no anti-dilutive shares. A reconciliation of the components of basic and diluted shares used in the EPS calculation follows:
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- References No definition available.
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- Definition The entire disclosure for earnings per share. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Capitalized Exploratory Well Costs |
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Jun. 30, 2016 | |||||||||||||||||||||||||||||||||||||||||||||||||||
| Capitalized Exploratory Well Costs [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||
| Capitalized Exploratory Well Costs [Text Block] | Net changes in capitalized exploratory well costs are presented in the table below. The balance at June 30, 2016, represents the amount of capitalized exploratory well costs that are pending the determination of proved reserves.
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- Definition [Line Items] for Capitalized Exploratory Well Costs [Table] No definition available.
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- Definition Capitalized Exploratory Well Costs [Text Block] No definition available.
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Asset Retirement Obligations |
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| Asset Retirement Obligation [Abstract] | |||||||||||||||||||||||||||||||||||||||||
| Asset Retirement Obligations [Text Block] | QEP records asset retirement obligations (ARO) when there are legal obligations associated with the retirement of tangible, long-lived assets. The Company's ARO liability applies primarily to abandonment costs associated with oil and gas wells and certain other properties. The fair values of such costs are estimated by Company personnel based on abandonment costs of similar assets and depreciated over the life of the related assets. Revisions to the ARO estimates result from changes in expected cash flows or material changes in estimated asset retirement costs. The ARO liability is adjusted to present value each period through an accretion calculation using a credit-adjusted risk-free interest rate. Of the $211.0 million and $206.8 million ARO liability for the periods ended June 30, 2016 and December 31, 2015, respectively, $3.3 million and $1.9 million, respectively, were included as a liability within "Accounts payable and accrued expenses" on the Condensed Consolidated Balance Sheets. The following is a reconciliation of the changes in the Company's ARO for the period specified below:
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- Definition The entire disclosure for an asset retirement obligation and the associated long-lived asset. An asset retirement obligation is a legal obligation associated with the disposal or retirement from service of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Fair Value Measurements |
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| Fair Value Disclosures [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Fair Value Measurements [Text Block] | QEP measures and discloses fair values in accordance with the provisions of ASC 820, Fair Value Measurements and Disclosures. This guidance defines fair value in applying GAAP, establishes a framework for measuring fair value and expands disclosures about fair value measurements. ASC 820 also establishes a fair value hierarchy. Level 1 inputs are quoted prices (unadjusted) for identical assets or liabilities in active markets that the Company has the ability to access at the measurement date. Level 2 inputs are inputs other than quoted prices included within Level 1 that are observable for the asset or liability, either directly or indirectly. Level 3 inputs are unobservable inputs for the asset or liability. QEP has determined that its commodity derivative instruments are Level 2. The Level 2 fair value of commodity derivative contracts (see Note 7 – Derivative Contracts) is based on market prices posted on the respective commodity exchange on the last trading day of the reporting period and industry standard discounted cash flow models. QEP primarily applies the market approach for recurring fair value measurements and maximizes its use of observable inputs and minimizes its use of unobservable inputs. QEP considers bid and ask prices for valuing the majority of its assets and liabilities measured and reported at fair value. In addition to using market data, QEP makes assumptions in valuing its assets and liabilities, including assumptions about risk and the risks inherent in the inputs to the valuation technique. The Company's policy is to recognize significant transfers between levels at the end of the reporting period. Certain of the Company's commodity derivative instruments are valued using industry standard models that consider various inputs, including quoted forward prices for commodities, time value, volatility, and current market and contractual prices for the underlying instruments, as well as other relevant economic measures. Substantially all of these inputs are observable in the marketplace throughout the full term of the instrument and can be derived from observable data or are supported by observable prices at which transactions are executed in the marketplace. The determination of fair value for derivative assets and liabilities also incorporates nonperformance risk for counterparties and for QEP. Derivative contract fair values are reported on a net basis to the extent a legal right of offset with the counterparty exists. The fair value of financial assets and liabilities at June 30, 2016 and December 31, 2015, is shown in the table below:
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The following table discloses the fair value and related carrying amount of certain financial instruments not disclosed in other Notes accompanying the Condensed Consolidated Financial Statements in this Quarterly Report on Form 10-Q:
The carrying amounts of cash and cash equivalents and checks outstanding in excess of cash balances approximate fair value. The fair value of fixed-rate long-term debt is based on the trading levels and dollar prices for the Company’s debt at the end of the quarter. The carrying amount of variable-rate, long-term debt approximates fair value because the floating interest rate paid on such debt was set for periods of one month. The initial measurement of ARO at fair value is calculated using discounted cash flow techniques and based on internal estimates of future retirement costs associated with property, plant and equipment. Significant Level 3 inputs used in the calculation of asset retirement obligations include plugging costs and reserve lives. A reconciliation of the Company’s ARO is presented in Note 5 – Asset Retirement Obligations. Nonrecurring Fair Value Measurements The provisions of the fair value measurement standard are also applied to the Company's nonrecurring measurements. The Company utilizes fair value on a nonrecurring basis to review its proved oil and gas properties for potential impairment when events and circumstances indicate a possible decline in the recoverability of the carrying value of such property. During the six months ended June 30, 2016 and 2015, the Company recorded impairments on certain proved oil and gas properties of $1,167.9 million and $19.4 million, respectively, resulting in a reduction of the associated carrying value to fair value. The fair value of the property was measured utilizing the income approach and utilizing inputs which are primarily based upon internally developed cash flow models discounted at an appropriate weighted average cost of capital. Given the unobservable nature of the inputs, proved oil and gas property impairments are considered Level 3 within the fair value hierarchy. Acquisitions of proved and unproved properties are also measured at fair value on a nonrecurring basis. The Company utilizes a discounted cash flow model to estimate the fair value of acquired property as of the acquisition date which utilizes the following inputs to estimate future net cash flows: estimated quantities of gas, oil and NGL reserves; estimates of future commodity prices; and estimated production rates, future operating and development costs, which are based on the Company's historic experience with similar properties. In some instances, market comparable information of recent transactions is used to estimate fair value of unproved acreage. Due to the unobservable characteristics of the inputs, the fair value of the properties is considered Level 3 within the fair value hierarchy. |
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- Definition The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Derivative Contracts |
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| Derivative Instruments and Hedging Activities Disclosure [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Derivative Instruments and Hedging Activities Disclosure [Text Block] | QEP has established policies and procedures for managing commodity price volatility through the use of derivative instruments. In the normal course of business, QEP uses commodity price derivative instruments to reduce the impact of potential downward movements in commodity prices on cash flow, returns on capital investment, and other financial results. However, these instruments typically limit gains from favorable price movements. The volume of production subject to commodity derivative instruments and the mix of the instruments are frequently evaluated and adjusted by management in response to changing market conditions. QEP may enter into commodity derivative contracts for up to 100% of forecasted production from proved reserves, but generally, QEP enters into commodity derivative contracts for approximately 50% to 75% of its forecasted annual production by the end of the first quarter of each fiscal year. In addition, QEP may enter into commodity derivative contracts on a portion of its storage transactions. QEP does not enter into commodity derivative instruments for speculative purposes. QEP uses commodity derivative instruments known as fixed-price swaps or collars to realize a known price or price range for a specific volume of production delivered into a regional sales point. QEP's commodity derivative instruments do not require the physical delivery of gas or oil between the parties at settlement. All transactions are settled in cash with one party paying the other for the net difference in prices, multiplied by the contract volume, for the settlement period. Gas price derivative instruments are typically structured as fixed-price swaps or collars at regional price indices. Oil price derivative instruments are typically structured as NYMEX fixed-price swaps based at Cushing, Oklahoma or oil price swaps that use Intercontinental Exchange, Inc. (ICE) Brent oil prices as the reference price. QEP also enters into crude oil and natural gas basis swaps to achieve a fixed-price swap for a portion of its oil and gas sales at prices that reference specific regional index prices. QEP does not currently have any commodity derivative transactions that have margin requirements or collateral provisions that would require payments prior to the scheduled settlement dates. Commodity derivative contract counterparties are normally financial institutions and energy trading firms with investment-grade credit ratings. QEP routinely monitors and manages its exposure to counterparty risk by requiring specific minimum credit standards for all counterparties and avoids concentration of credit exposure by transacting with multiple counterparties. The Company has master-netting agreements with some counterparties that allow the offsetting of receivables and payables in a default situation. Derivative Contracts – Production The following table sets forth QEP’s quantities and average prices for its commodity derivative swap contracts as of June 30, 2016:
The following table sets forth details of QEP's gas collars as of June 30, 2016:
QEP uses gas basis swaps, combined with NYMEX HH fixed price swaps, to achieve fixed price swaps for the location at which it sells its physical production. The following table sets forth details of QEP's gas basis swaps as of June 30, 2016:
Derivative Contracts – Storage QEP enters into commodity derivative transactions to lock in a margin on gas volumes placed into storage. The following table sets forth QEP’s quantities and average prices for its storage commodity derivative swap contracts as of June 30, 2016:
QEP Derivative Financial Statement Presentation The following table identifies the Condensed Consolidated Balance Sheet location of QEP’s outstanding derivative contracts on a gross contract basis as opposed to the net contract basis presentation in the Condensed Consolidated Balance Sheets and the related fair values at the balance sheet dates:
The effects of the change in fair value and settlement of QEP's derivative contracts recorded in "Realized and unrealized gains (losses) on derivative contracts" on the Condensed Consolidated Statements of Operations are summarized in the following table:
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- References No definition available.
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- Definition The entire disclosure for derivative instruments and hedging activities including, but not limited to, risk management strategies, non-hedging derivative instruments, assets, liabilities, revenue and expenses, and methodologies and assumptions used in determining the amounts. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Restructuring Costs |
6 Months Ended |
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Jun. 30, 2016 | |
| Restructuring and Related Activities [Abstract] | |
| Restructuring and Related Activities Disclosure [Text Block] | In April 2016, the Company streamlined its organizational structure, resulting in a reduction of approximately 6% of its total workforce. The Company estimates that the total costs related to the 2016 restructuring will be approximately $1.9 million, all of which is related to one-time termination benefits. During the three and six months ended June 30, 2016, restructuring costs of $1.8 million were incurred and paid related to the 2016 restructuring. The Company estimates that the remaining $0.1 million of restructuring costs related to the 2016 restructuring will be incurred during the remainder of 2016. During 2015, QEP had multiple restructuring events, including the closure of its Tulsa office, which occurred in the third quarter of 2015. The Company estimates that the total costs related to the 2015 restructuring events will be approximately $8.5 million, of which approximately $5.3 million is related to one-time termination benefits and approximately $3.2 million is related to relocation of certain employees. During the three and six months ended June 30, 2016, restructuring costs of $0.2 million and $0.5 million, respectively, were incurred and paid related to the Tulsa office closure, all of which were related to the relocation of certain employees. The Company estimates that the remaining $0.3 million of restructuring costs related to the 2015 restructuring events will be incurred during the remainder of 2016. All restructuring costs were recorded within "General and administrative" expense on the Condensed Consolidated Statement of Operations. |
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- References No definition available.
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- Definition The entire disclosure for restructuring and related activities. Description of restructuring activities such as exit and disposal activities, include facts and circumstances leading to the plan, the expected plan completion date, the major types of costs associated with the plan activities, total expected costs, the accrual balance at the end of the period, and the periods over which the remaining accrual will be settled. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Debt |
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| Debt Disclosure [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Debt [Text Block] | As of the indicated dates, the principal amount of QEP’s debt consisted of the following:
Of the total debt outstanding on June 30, 2016, the 6.05% Senior Notes due September 1, 2016, the 6.80% Senior Notes due April 1, 2018, the 6.80% Senior Notes due March 1, 2020 and the 6.875% Senior Notes due March 1, 2021, will mature within the next five years. In addition, the revolving credit facility matures on December 2, 2019. Credit Facility QEP’s revolving credit facility, which matures in December 2019, provides for loan commitments of $1.8 billion from a group of financial institutions. The credit facility provides for borrowings at short-term interest rates and contains customary provisions and restrictions. The credit agreement contains financial covenants (as defined in the credit agreement) that limit the amount of debt the Company may incur and may limit the amount available to be drawn under the credit facility, including: (i) a net funded debt to capitalization ratio that may not exceed 60%, (ii) a leverage ratio under which net funded debt may not exceed 4.25 times consolidated EBITDA (as defined in the credit agreement) for the fiscal quarters ending on and prior to December 31, 2017, and 3.75 times thereafter and (iii) a present value coverage ratio under which the present value of the Company’s proved reserves must exceed net funded debt by 1.25 times at any time prior to January 1, 2018, and 1.50 times at any time on or after January 1, 2018. At June 30, 2016, QEP was in compliance with the covenants under the credit agreement. During the six months ended June 30, 2016 and 2015, QEP had no borrowings under the credit facility. Additionally, as of June 30, 2016 and December 31, 2015, QEP had no borrowings outstanding under the credit facility and had $2.8 million and $3.4 million, respectively, in letters of credit outstanding under the credit facility. Senior Notes At June 30, 2016, the Company had $2,221.8 million principal amount of senior notes outstanding with maturities ranging from September 2016 to May 2023 and coupons ranging from 5.25% to 6.875%. The senior notes pay interest semi-annually, are unsecured senior obligations and rank equally with all of our other existing and future unsecured and senior obligations. QEP may redeem all of its senior notes at any time before their maturity at a redemption price based on a make-whole amount plus accrued and unpaid interest to the date of redemption. The indentures governing QEP’s senior notes contain customary events of default and covenants that may limit QEP’s ability to, among other things, place liens on its property or assets. |
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- References No definition available.
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- Definition The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Contingencies |
6 Months Ended |
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Jun. 30, 2016 | |
| Commitments and Contingencies Disclosure [Abstract] | |
| Contingencies [Text Block] | The Company is involved in various commercial and regulatory claims, litigation and other legal proceedings that arise in the ordinary course of its business. In each reporting period, the Company assesses these claims in an effort to determine the degree of probability and range of possible loss for potential accrual in its Condensed Consolidated Financial Statements. In accordance with ASC 450, Contingencies, an accrual is recorded for a material loss contingency when its occurrence is probable and damages are reasonably estimable based on the anticipated most likely outcome or the minimum amount within a range of possible outcomes. Because legal proceedings are inherently unpredictable, and unfavorable resolutions can occur, assessing contingencies is highly subjective and requires judgments about uncertain future events. When evaluating contingencies related to legal proceedings, the Company may be unable to estimate losses due to a number of factors, including the potential defenses, procedural status of the matter in question, the presence of complex legal or factual issues, or the ongoing discovery and/or development of information important to the matter. Litigation Rocky Mountain Resources Lawsuit – Rocky Mountain Resources, LLC (Rocky Mountain) filed its complaint in March 2011, seeking determination of the existence of a 4% overriding royalty interest in an oil and gas lease. Rocky Mountain alleges that the defendants have failed to pay Rocky Mountain monies associated with the claimed 4% overriding royalty interest since the issuance of the lease by the State of Wyoming in 1980. In February 2015, a jury rendered a verdict against the Company and awarded Rocky Mountain damages in the amount of $16.7 million, including interest. The Company is appealing the verdict to the Wyoming Supreme Court, and, in connection with such appeal, has posted a bond for approximately $20.0 million (representing the amount of the verdict and two years of accrued interest at the statutory rate of 10%). In accordance with the Court’s order, the Company is depositing the future monthly revenues attributable to the 4% overriding royalty interest with the Court as it becomes due and payable. The overriding royalty payments will be subject to the direction of the Court following the conclusion of the appeal. QEP estimates that, notwithstanding the verdict, the range of reasonably possible losses in excess of current accruals, if any, is zero to approximately $20.0 million. Claims of Former Limited Partners – The Company received a demand from certain former limited partners of terminated drilling partnerships of the Company (acting as the general partner). The former limited partners allege that distributions to which they were entitled from the drilling partnerships were not made or were calculated incorrectly. Other former limited partners may assert claims. No litigation has been filed, and the Company is in the process of evaluating the allegations and its defenses. The Company believes that it is not possible to reasonably estimate a range of possible losses at this time. The cost to settle legal proceedings (alleged or threatened), or satisfy any resulting judgment against the Company in such proceedings could result in a substantial liability, which could materially and adversely impact the Company’s cash flows and operating results for a particular period. Arbitration Regarding Gas Purchase Agreement – An entity that purchases, gathers and processes natural gas produced from oil wells operated by the Company in the Williston Basin has claimed that the decline in commodity prices has rendered its gathering and processing operations "uneconomic" and demanded that, effective March 1, 2016, QEP pay additional fees for gathering and processing services. The midstream provider has been unwilling to connect new wells unless the Company agrees to pay the increased fees for production from the new wells. QEP initiated arbitration proceedings in May 2016 to enforce the terms of the existing agreement. The Company estimates that, notwithstanding the arbitration outcome, the range of reasonably possible losses in excess of current accruals, if any, is zero to approximately $2.5 million per month, effective March 1, 2016. |
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- References No definition available.
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- Definition The entire disclosure for commitments and contingencies. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Share-Based Compensation |
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| Disclosure of Compensation Related Costs, Share-based Payments [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Share-Based Compensation [Text Block] | QEP issues stock options, restricted shares and restricted share units under its Long-Term Stock Incentive Plan (LTSIP) and awards performance share units under its Cash Incentive Plan (CIP) to certain officers, employees, and non-employee directors. QEP recognizes the expense over the vesting periods for the stock options, restricted shares, restricted share units and performance share units. There were 7.1 million shares available for future grants under the LTSIP at June 30, 2016. Share-based compensation expense is recognized within "General and administrative" expense on the Condensed Consolidated Statements of Operations and is summarized in the table below:
Stock Options QEP uses the Black-Scholes-Merton mathematical model to estimate the fair value of stock option awards at the date of the grant. Fair value calculations rely upon subjective assumptions used in the mathematical model and may not be representative of future results. The Black-Scholes-Merton model is intended for measuring the value of options traded on an exchange. The Company utilizes the "simplified" method to estimate the expected term of the stock options granted as there is limited historical exercise data available in estimating the expected term of the stock options. QEP uses a historical volatility method to estimate the fair value of stock options awards and the risk-free interest rate is based on the yield on U.S. Treasury strips with maturities similar to those of the expected term of the stock options. The stock options typically vest in equal installments over a three-year period from the grant date and are exercisable immediately upon vesting through the seventh anniversary of the grant date. To fulfill options exercised, QEP either reissues treasury stock or issues new shares. The calculated fair value of options granted and major assumptions used in the model at the date of grant are listed below for the six months ended June 30, 2016:
Stock option transactions under the terms of the LTSIP are summarized below:
During the six months ended June 30, 2016, there were no exercises of stock options. During the six months ended June 30, 2015, the total intrinsic value (the difference between the market price at the exercise date and the exercise price) of options exercised was $0.1 million. As of June 30, 2016, $2.3 million of unrecognized compensation cost related to stock options granted under the LTSIP, which is included within "Additional paid-in capital" on the Condensed Consolidated Balance Sheet, is expected to be recognized over a weighted-average period of 2.22 years. Restricted Share Awards Restricted share grants typically vest in equal installments over a three-year period from the grant date. The grant date fair value is determined based on the closing bid price of the Company's common stock on the grant date. The total fair value of restricted stock that vested during the six months ended June 30, 2016 and 2015, was $21.4 million and $18.1 million, respectively. The weighted-average grant date fair value of restricted stock was $10.25 per share and $21.66 per share for the six months ended June 30, 2016 and 2015, respectively. As of June 30, 2016, $28.8 million of unrecognized compensation cost related to restricted shares granted under the LTSIP, which is included within "Additional paid-in capital" on the Condensed Consolidated Balance Sheet, is expected to be recognized over a weighted-average vesting period of 2.34 years. Transactions involving restricted shares under the terms of the LTSIP are summarized below:
Performance Share Units The performance share units' cash payouts are dependent upon the Company’s total shareholder return compared to a group of its peers over a three-year period. The awards are denominated in share units and have historically been delivered in cash. Beginning with awards granted in 2015, the Company has the option to settle earned awards in cash or shares of common stock under the Company's LTSIP; however, as of June 30, 2016, the Company expects to settle all awards in cash. These awards are classified as liabilities and are included within "Other long-term liabilities" on the Condensed Consolidated Balance Sheet. As these awards are dependent upon the Company's total shareholder return and stock price, they are remeasured at fair value at the end of each reporting period. The weighted-average grant date fair value of the performance share units was $10.12 per share and $21.69 per share for the six months ended June 30, 2016 and 2015, respectively. As of June 30, 2016, $16.7 million of unrecognized compensation cost, which represents the unvested portion of the fair market value of performance shares granted, is expected to be recognized over a weighted-average vesting period of 2.15 years. Transactions involving performance share units under the terms of the CIP are summarized below:
Restricted Share Units Restricted share units vest over a three-year period and are deferred into the Company's nonqualified unfunded deferred compensation plan at the time of vesting. These awards are classified as liabilities and are included within "Other long-term liabilities" on the Condensed Consolidated Balance Sheet. As these awards are dependent upon the Company's stock price, they are remeasured at fair value at the end of each reporting period. The weighted-average grant date fair value of the restricted share units was $10.12 per share for the six months ended June 30, 2016. As of June 30, 2016, $0.3 million of unrecognized compensation cost, which represents the unvested portion of the fair market value of restricted share units granted, is expected to be recognized over a weighted-average vesting period of 2.86 years. Transactions involving restricted share units under the terms of the LTSIP are summarized below:
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- Definition The entire disclosure for compensation-related costs for equity-based compensation, which may include disclosure of policies, compensation plan details, allocation of equity compensation, incentive distributions, equity-based arrangements to obtain goods and services, deferred compensation arrangements, employee stock ownership plan details and employee stock purchase plan details. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- References No definition available.
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Employee Benefits |
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| Employee Benefits [Text Block] | Pension and Other Postretirement Benefits The Company provides pension and other postretirement benefits to certain employees through three retirement benefit plans: the QEP Resources, Inc. Retirement Plan (the Pension Plan), the Supplemental Executive Retirement Plan (SERP), and a postretirement medical plan (the Medical Plan). As a result of the Company's divestitures in 2014 and retirements in 2015, the number of active participants in the Pension Plan fell to 50 employees during the year ended December 31, 2015, which is the minimum number of active participants for a plan to be qualified under the Internal Revenue Services' participation rules. In order to prevent disqualification, the Pension Plan was amended in June 2015 and was frozen effective January 1, 2016, such that employees do not earn additional defined benefits for future services. The Pension Plan is a closed, qualified defined-benefit pension plan that is funded and provides pension benefits to certain QEP employees. During the six months ended June 30, 2016, the Company made contributions of $4.0 million to the Pension Plan and does not expect to make additional contributions to the Pension Plan during the remainder of 2016. Contributions to the Pension Plan increase plan assets. The SERP is a nonqualified retirement plan that is unfunded and provides pension benefits to certain QEP employees. During the six months ended June 30, 2016, the Company made contributions of $1.5 million to its SERP and expects to contribute an additional $2.1 million to its SERP during the remainder of 2016. Contributions to the SERP are used to fund current benefit payments. The SERP was amended and restated in June 2015 and was closed to new participants effective January 1, 2016. The Medical Plan is unfunded and provides other postretirement benefits including certain health care and life insurance benefits for certain retired employees. During the six months ended June 30, 2016, the Company made contributions of $0.1 million to its Medical Plan and expects to contribute an additional $0.2 million to its Medical Plan during the remainder of 2016. Contributions to the Medical Plan are used to fund current benefit payments. The following table sets forth the Company’s net periodic benefit costs related to its Pension Plan, SERP and Medical Plan:
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition The entire disclosure for pension and other postretirement benefits. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Basis of Presentation Revision of Financial Statements (Tables) |
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition Tabular disclosure of prior period adjustments to previously issued financial statements including (1) the effect of the correction on each financial statement line item and any per-share amounts affected for each prior period presented (2) the cumulative effect of the change on retained earnings or other appropriate components of equity or net assets in the statement of financial position, as of the beginning of the earliest period presented, and (3) the effect of the prior period adjustments (both gross and net of applicable income tax) on the net income of each prior period presented in the entity's annual report for the year in which the adjustments are made. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Earnings Per Share (Tables) |
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| Earnings Per Share [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Components of basic and diluted shares used in EPS [Table Text Block] | A reconciliation of the components of basic and diluted shares used in the EPS calculation follows:
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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Capitalized Exploratory Well Costs (Tables) |
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| Capitalized Exploratory Well Costs [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||
| Capitalized Exploratory Well Costs [Table Text Block] | Net changes in capitalized exploratory well costs are presented in the table below. The balance at June 30, 2016, represents the amount of capitalized exploratory well costs that are pending the determination of proved reserves.
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Asset Retirement Obligations (Tables) |
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| Asset retirement obligations rollforward [Table Text Block] | The following is a reconciliation of the changes in the Company's ARO for the period specified below:
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- Definition Tabular disclosure of the changes in carrying amount of a liability for asset retirement obligations, for changes such as new obligations, changes in estimates of existing obligations, spending on existing obligations, property dispositions, and foreign currency translation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Fair Value Measurements (Tables) |
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| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Fair value of financial assets and liabilities [Table Text Block] | The fair value of financial assets and liabilities at June 30, 2016 and December 31, 2015, is shown in the table below:
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| Fair value and related carrying amount of certain financial instruments [Table Text Block] | The following table discloses the fair value and related carrying amount of certain financial instruments not disclosed in other Notes accompanying the Condensed Consolidated Financial Statements in this Quarterly Report on Form 10-Q:
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- Definition Tabular disclosure of financial instruments measured at fair value, including those classified in shareholders' equity measured on a recurring or nonrecurring basis. Disclosures include, but are not limited to, fair value measurements recorded and the reasons for the measurements, level within the fair value hierarchy in which the fair value measurements are categorized and transfers between levels 1 and 2. Nonrecurring fair value measurements are those that are required or permitted in the statement of financial position in particular circumstances. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Tabular disclosure of the fair value of financial instruments, including financial assets and financial liabilities, and the measurements of those instruments, assets, and liabilities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Derivative Contracts (Tables) |
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| Derivative Instruments and Hedging Activities Disclosure [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Notional Amounts of Outstanding Derivative Positions [Table Text Block] | Derivative Contracts – Production The following table sets forth QEP’s quantities and average prices for its commodity derivative swap contracts as of June 30, 2016:
The following table sets forth details of QEP's gas collars as of June 30, 2016:
QEP uses gas basis swaps, combined with NYMEX HH fixed price swaps, to achieve fixed price swaps for the location at which it sells its physical production. The following table sets forth details of QEP's gas basis swaps as of June 30, 2016:
Derivative Contracts – Storage QEP enters into commodity derivative transactions to lock in a margin on gas volumes placed into storage. The following table sets forth QEP’s quantities and average prices for its storage commodity derivative swap contracts as of June 30, 2016:
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| Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block] | The following table identifies the Condensed Consolidated Balance Sheet location of QEP’s outstanding derivative contracts on a gross contract basis as opposed to the net contract basis presentation in the Condensed Consolidated Balance Sheets and the related fair values at the balance sheet dates:
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| Derivative Instruments, Gain (Loss) [Table Text Block] |
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- References No definition available.
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- Definition Tabular disclosure of the location and amount of derivative instruments and nonderivative instruments designated as hedging instruments reported before netting adjustments, and the amount of gain (loss) on derivative instruments and nonderivative instruments designated and qualified as hedging instruments. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Tabular disclosure of the location and fair value amounts of derivative instruments (and nonderivative instruments that are designated and qualify as hedging instruments) reported in the statement of financial position. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Tabular disclosure of the notional amounts of outstanding derivative positions. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Debt (Tables) |
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| Debt Disclosure [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Debt Outstanding [Table Text Block] | As of the indicated dates, the principal amount of QEP’s debt consisted of the following:
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- References No definition available.
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- Definition Tabular disclosure of information pertaining to short-term and long-debt instruments or arrangements, including but not limited to identification of terms, features, collateral requirements and other information necessary to a fair presentation. No definition available.
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Share-Based Compensation (Tables) |
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| Disclosure of Compensation Related Costs, Share-based Payments [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Share-based Compensation Expense [Table Text Block] | Share-based compensation expense is recognized within "General and administrative" expense on the Condensed Consolidated Statements of Operations and is summarized in the table below:
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| Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] | The calculated fair value of options granted and major assumptions used in the model at the date of grant are listed below for the six months ended June 30, 2016:
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| Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block] | Stock option transactions under the terms of the LTSIP are summarized below:
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| Schedule of Share-based Compensation, Restricted Share Awards Activity [Table Text Block] | Transactions involving restricted shares under the terms of the LTSIP are summarized below:
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| Schedule of Other Share-based Compensation, Activity [Table Text Block] | Transactions involving performance share units under the terms of the CIP are summarized below:
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- Definition [Table Text Block] for Share-based Compensation Expense [Table] No definition available.
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- References No definition available.
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- Definition Tabular disclosure of the changes in other outstanding share-based compensation awards other than stock options or nonvested awards. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Disclosure of the number and weighted-average grant date fair value for restricted stock and restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock and restricted stock units that were granted, vested, or forfeited during the year. No definition available.
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Employee Benefits (Tables) |
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| Compensation and Retirement Disclosure [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Net Benefit Costs [Table Text Block] | The following table sets forth the Company’s net periodic benefit costs related to its Pension Plan, SERP and Medical Plan:
____________________________
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- References No definition available.
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- Definition Tabular disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) recognized due to settlements or curtailments. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Basis of Presentation Equity Offering (Details) - USD ($) shares in Thousands, $ in Millions |
3 Months Ended | |
|---|---|---|
Jun. 30, 2016 |
Mar. 31, 2016 |
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| Share Issuance - June 2016 [Domain] | ||
| Schedule of Stock Issuance [Line Items] | ||
| Common Stock, Shares Issued in Period | 23,000 | |
| Proceeds from Issuance of Common Stock | $ 413.0 | |
| Share Issuance - March 2016 [Domain] | ||
| Schedule of Stock Issuance [Line Items] | ||
| Common Stock, Shares Issued in Period | 37,950 | |
| Proceeds from Issuance of Common Stock | $ 368.6 | |
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- Definition Common Stock, Shares Issued in Period No definition available.
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- Definition [Line Items] for Schedule of Stock Issuance [Table] No definition available.
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- Definition The cash inflow from the additional capital contribution to the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Basis of Presentation Revision of Financial Statements (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2016 |
Jun. 30, 2015 |
Jun. 30, 2016 |
Jun. 30, 2015 |
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| Revision of Financial Statements [Line Items] | ||||
| Operating Expenses | $ 425.8 | $ 615.8 | $ 2,066.8 | $ 1,182.0 |
| As reported [Member] | ||||
| Revision of Financial Statements [Line Items] | ||||
| Revenue from Purchased Oil and Gas | 215.0 | 382.3 | ||
| Revenues | 608.6 | 1,100.2 | ||
| Cost of Purchased Oil and Gas | 217.2 | 386.6 | ||
| Operating Expenses | 649.8 | 1,239.5 | ||
| As revised [Member] | ||||
| Revision of Financial Statements [Line Items] | ||||
| Revenue from Purchased Oil and Gas | 181.0 | 324.8 | ||
| Revenues | 574.6 | 1,042.7 | ||
| Cost of Purchased Oil and Gas | 183.2 | 329.1 | ||
| Operating Expenses | 615.8 | 1,182.0 | ||
| Change [Member] | ||||
| Revision of Financial Statements [Line Items] | ||||
| Revenue from Purchased Oil and Gas | (34.0) | (57.5) | ||
| Revenues | (34.0) | (57.5) | ||
| Cost of Purchased Oil and Gas | (34.0) | (57.5) | ||
| Operating Expenses | $ (34.0) | $ (57.5) | ||
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- Definition [Line Items] for Revision of Financial Statements [Table] No definition available.
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- Definition Cost of oil and gas purchased during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Includes selling, general and administrative expense. No definition available.
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| X | ||||||||||
- Definition Revenue from sale of oil and gas purchased from other sources. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Basis of Presentation Impairment of Long-Lived Assets (Details) - USD ($) $ in Millions |
6 Months Ended | |
|---|---|---|
Jun. 30, 2016 |
Jun. 30, 2015 |
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| Proved Property [Member] | ||
| Impaired Long-Lived Assets Held and Used [Line Items] | ||
| Impairment of Oil and Gas Properties | $ 1,167.9 | $ 19.4 |
| Unproved Property [Member] | ||
| Impaired Long-Lived Assets Held and Used [Line Items] | ||
| Impairment of Oil and Gas Properties | 11.6 | |
| Pinedale [Member] | Proved Property [Member] | ||
| Impaired Long-Lived Assets Held and Used [Line Items] | ||
| Impairment of Oil and Gas Properties | 1,164.0 | |
| Other Northern [Member] | Proved Property [Member] | ||
| Impaired Long-Lived Assets Held and Used [Line Items] | ||
| Impairment of Oil and Gas Properties | 3.5 | |
| Other Southern [Member] | Proved Property [Member] | ||
| Impaired Long-Lived Assets Held and Used [Line Items] | ||
| Impairment of Oil and Gas Properties | $ 0.4 | |
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition The expense recorded to reduce the value of oil and gas assets consisting of proved properties and unproved properties as the estimate of future successful production from these properties is reduced. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Acquisitions & Divestitures (Narrative) (Details) $ in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
|
Jun. 30, 2016
USD ($)
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Jun. 30, 2015
USD ($)
|
Jun. 30, 2016
USD ($)
a
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Jun. 30, 2015
USD ($)
|
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| Business Acquisition [Line Items] | ||||
| Proceeds from Sale of Oil and Gas Property and Equipment | $ 23.7 | $ (2.4) | ||
| Gain (Loss) on Disposition of Property Plant Equipment | $ (0.8) | $ 24.5 | ||
| Permian Basin Acquisition [Member] | ||||
| Business Acquisition [Line Items] | ||||
| Acquisition Costs, Period Cost | $ 600.0 | |||
| Net Acres | a | 9,400.0 | |||
| Vertical Wells | 96 | |||
| Williston & Permian Basins [Member] | ||||
| Business Acquisition [Line Items] | ||||
| Acquisition Costs, Period Cost | $ 29.8 | |||
| Goodwill, Acquired During Period | 3.7 | |||
| Other Southern Divestiture [Member] | ||||
| Business Acquisition [Line Items] | ||||
| Proceeds from Sale of Oil and Gas Property and Equipment | 23.7 | |||
| Gain (Loss) on Disposition of Property Plant Equipment | $ (0.3) | |||
| 2014 Divestitures [Member] | ||||
| Business Acquisition [Line Items] | ||||
| Gain (Loss) on Disposition of Property Plant Equipment | $ (6.0) | |||
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- Definition Net Acres No definition available.
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| X | ||||||||||
- Definition Vertical Well No definition available.
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- Definition The capitalized costs incurred during the period (excluded from amortization) to purchase, lease or otherwise acquire an unproved property, including costs of lease bonuses and options to purchase or lease properties, the portion of costs applicable to minerals when land including mineral rights is purchased in fee, brokers' fees, recording fees, legal costs, and other costs incurred in acquiring properties. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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| X | ||||||||||
- Definition Amount of gain (loss) on sale or disposal of property, plant and equipment assets, including oil and gas property and timber property. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The cash inflow to dispose of long-lived, physical assets and mineral interests in oil and gas properties used for normal oil and gas operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Details
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Earnings Per Share Components of Basic and Diluted Shares Used In EPS Calculation (Details) - shares shares in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2016 |
Jun. 30, 2015 |
Jun. 30, 2016 |
Jun. 30, 2015 |
|
| Earnings Per Share [Abstract] | ||||
| Anti-dilutive shares | 0.1 | |||
| Weighted-average basic common shares outstanding | 217.7 | 176.7 | 203.7 | 176.4 |
| Potential number of shares issuable upon exercise of in-the-money stock options under the Long-term Stock Incentive Plan | 0.0 | 0.0 | 0.0 | 0.0 |
| Average diluted common shares outstanding | 217.7 | 176.7 | 203.7 | 176.4 |
| X | ||||||||||
- Definition Anti-dilutive shares No definition available.
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Capitalized Exploratory Well Costs (Details) $ in Millions |
6 Months Ended |
|---|---|
|
Jun. 30, 2016
USD ($)
| |
| Capitalized Exploratory Well Costs [Abstract] | |
| Capitalized exploratory well costs, beginning balance | $ 2.6 |
| Additions to capitalized exploratory well costs pending the determination of proved reserves | 11.0 |
| Reclassification to proved properties after the determination of proved reserves | 0.0 |
| Capitalized exploratory well costs charged to expense | (0.1) |
| Capitalized exploratory well costs, ending balance | $ 13.5 |
| X | ||||||||||
- Definition Amount of expense for capitalized exploratory well costs for which proved reserves were not found at the exploratory well. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount of increase (decrease) in capitalized exploratory well costs. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition The amount of capitalized exploratory well costs that is pending the determination of proved reserves. This does not include amounts that were capitalized and subsequently expensed in the same annual period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Previously capitalized costs of the drilling of wells that were reclassified as part of the costs of the enterprise's wells and related equipment and facilities at the time that proved reserves were found. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Asset Retirement Obligations (Details) - USD ($) $ in Millions |
6 Months Ended | |
|---|---|---|
Jun. 30, 2016 |
Dec. 31, 2015 |
|
| Asset Retirement Obligation [Abstract] | ||
| Asset Retirement Obligation, Current | $ 3.3 | $ 1.9 |
| ARO Liability [Roll Forward] | ||
| ARO liability, Beginning Balance | 206.8 | |
| Accretion | 4.3 | |
| Additions | 2.4 | |
| Liabilities settled | 2.5 | |
| ARO liability, Ending Balance | $ 211.0 |
| X | ||||||||||
- Definition The carrying amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Amount of accretion expense recognized during the period that is associated with an asset retirement obligation. Accretion expense measures and incorporates changes due to the passage of time into the carrying amount of the liability. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Current portion of the carrying amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount of asset retirement obligations incurred during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount of asset retirement obligations settled, or otherwise disposed of, during the period. This may include asset retirement obligations transferred to third parties associated with the sale of a long-lived asset. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Fair value, after effects of master netting arrangements, of financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset offset against an obligation to return collateral. Includes assets not subject to a master netting arrangement and not elected to be offset. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Fair value, before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Fair value, after effects of master netting arrangements, of financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset offset against the right to receive collateral. Includes liabilities not subject to a master netting arrangement and not elected to be offset. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- References No definition available.
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition The expense recorded to reduce the value of oil and gas assets consisting of proved properties and unproved properties as the estimate of future successful production from these properties is reduced. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Fair Value Measurements Fair Value and Related Carrying Amount of Certain Financial Instruments (Details) - USD ($) $ in Millions |
Jun. 30, 2016 |
Dec. 31, 2015 |
Jun. 30, 2015 |
Dec. 31, 2014 |
|---|---|---|---|---|
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||
| Cash and Cash Equivalents, at Carrying Value | $ 1,038.3 | $ 376.1 | $ 445.6 | $ 1,160.1 |
| Checks outstanding in excess of cash balances | 0.0 | 29.8 | ||
| Long-term debt | 2,194.6 | 2,191.5 | ||
| Reported Value Measurement [Member] | ||||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||
| Cash and Cash Equivalents, at Carrying Value | 1,038.3 | 376.1 | ||
| Checks outstanding in excess of cash balances | 0.0 | 29.8 | ||
| Long-term debt | 2,194.6 | 2,191.5 | ||
| Estimate of Fair Value Measurement [Member] | ||||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||
| Cash and Cash Equivalents, at Carrying Value | 1,038.3 | 376.1 | ||
| Checks outstanding in excess of cash balances | 0.0 | 29.8 | ||
| Long-term debt, fair value | $ 2,150.1 | $ 1,784.6 |
| X | ||||||||||
- Definition Carrying value as of the balance sheet date of payments made in excess of existing cash balances, which will be honored by the bank but reflected as a loan to the entity. Overdrafts generally have a very short time frame for correction or repayment and are therefore more similar to short-term bank financing than trade financing. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. No definition available.
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Derivative Contracts (Narrative) (Details) |
6 Months Ended |
|---|---|
Jun. 30, 2016 | |
| Derivative [Line Items] | |
| Maximum Forecasted Production Covered By Derivatives | 100.00% |
| Minimum [Member] | |
| Derivative [Line Items] | |
| Expected Annual Production Covered By Derivatives | 50.00% |
| Maximum [Member] | |
| Derivative [Line Items] | |
| Expected Annual Production Covered By Derivatives | 75.00% |
| X | ||||||||||
- Definition Expected Annual Production Covered By Derivatives No definition available.
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- Definition Potential maximum amount of forecasted production covered by derivative contracts. No definition available.
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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Derivative Contracts Schedule Of Commodity Derivative Contracts (Details) MMBTU in Millions |
6 Months Ended |
|---|---|
|
Jun. 30, 2016
USD ($)
MMBTU
$ / MMBTU
| |
| Gas Swaps [Member] | Production [Member] | Year 2016 [Member] | NYMEX HH [Member] | |
| Derivative [Line Items] | |
| Derivative Volumes | 29.4 |
| Average Swap Price per Unit | $ | $ 2.78 |
| Gas Swaps [Member] | Production [Member] | Year 2016 [Member] | IFNPCR [Member] | |
| Derivative [Line Items] | |
| Derivative Volumes | 36.8 |
| Average Swap Price per Unit | $ | $ 2.53 |
| Gas Swaps [Member] | Production [Member] | Year 2017 [Member] | NYMEX HH [Member] | |
| Derivative [Line Items] | |
| Derivative Volumes | 73.0 |
| Average Swap Price per Unit | $ | $ 2.75 |
| Gas Swaps [Member] | Production [Member] | Year 2017 [Member] | IFNPCR [Member] | |
| Derivative [Line Items] | |
| Derivative Volumes | 32.9 |
| Average Swap Price per Unit | $ | $ 2.51 |
| Gas Swaps [Member] | Production [Member] | Year 2018 [Member] | NYMEX HH [Member] | |
| Derivative [Line Items] | |
| Derivative Volumes | 7.3 |
| Average Swap Price per Unit | $ | $ 2.80 |
| Gas Swaps [Member] | Storage [Member] | Year 2016 [Member] | IFNPCR [Member] | |
| Derivative [Line Items] | |
| Derivative Volumes | 2.3 |
| Average Swap Price per Unit | $ | $ 2.57 |
| Gas Swaps [Member] | Storage [Member] | Year 2017 [Member] | IFNPCR [Member] | |
| Derivative [Line Items] | |
| Derivative Volumes | 2.4 |
| Average Swap Price per Unit | $ | $ 2.77 |
| Oil Swaps [Member] | Production [Member] | Year 2016 [Member] | NYMEX WTI [Member] | |
| Derivative [Line Items] | |
| Derivative Volumes | 6.1 |
| Average Swap Price per Unit | $ | $ 51.24 |
| Oil Swaps [Member] | Production [Member] | Year 2017 [Member] | NYMEX WTI [Member] | |
| Derivative [Line Items] | |
| Derivative Volumes | 9.1 |
| Average Swap Price per Unit | $ | $ 50.76 |
| Oil Swaps [Member] | Production [Member] | Year 2018 [Member] | NYMEX WTI [Member] | |
| Derivative [Line Items] | |
| Derivative Volumes | 1.1 |
| Average Swap Price per Unit | $ | $ 53.72 |
| Gas Collars [Member] | Production [Member] | Year 2016 [Member] | NYMEX HH [Member] | |
| Derivative [Line Items] | |
| Derivative Volumes | 3.7 |
| Derivative Average Price Floor | $ | $ 2.75 |
| Derivative Average Price Ceiling | $ | $ 3.89 |
| Gas Collars [Member] | Production [Member] | Year 2017 [Member] | NYMEX HH [Member] | |
| Derivative [Line Items] | |
| Derivative Volumes | 11.0 |
| Derivative Average Price Floor | $ | $ 2.50 |
| Derivative Average Price Ceiling | $ | $ 3.50 |
| Gas Basis Swaps [Member] | Production [Member] | Year 2016 [Member] | NYMEX HH LESS IFNPCR [Member] | |
| Derivative [Line Items] | |
| Derivative Volumes | 18.4 |
| Weighted-Average Differential | $ / MMBTU | (0.16) |
| Gas Basis Swaps [Member] | Production [Member] | Year 2017 [Member] | NYMEX HH LESS IFNPCR [Member] | |
| Derivative [Line Items] | |
| Derivative Volumes | 51.1 |
| Weighted-Average Differential | $ / MMBTU | (0.18) |
| Gas Basis Swaps [Member] | Production [Member] | Year 2018 [Member] | NYMEX HH LESS IFNPCR [Member] | |
| Derivative [Line Items] | |
| Derivative Volumes | 7.3 |
| Weighted-Average Differential | $ / MMBTU | (0.16) |
| Gas Purchase Swaps [Member] | Storage [Member] | Year 2016 [Member] | IFNPCR [Member] | |
| Derivative [Line Items] | |
| Derivative Volumes | 1.8 |
| Average Swap Price per Unit | $ | $ 2.43 |
| X | ||||||||||
- Definition Aggregate notional amount of derivative expressed in nonmonetary units. For example, the number of barrels specified in a fuel oil forward purchase contract. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Average Swap Price per Unit No definition available.
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- Definition Derivative Average Price Ceiling No definition available.
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- Definition Derivative Average Price Floor No definition available.
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition Specified interest rate, security price, commodity price, foreign exchange rate, index of prices or rates for a derivative contract but not the derivative contract itself. No definition available.
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Derivative Contracts Schedule of Derivatives Financial Statement Presentation (Details) - Fair Value, Inputs, Level 2 [Member] - USD ($) $ in Millions |
Jun. 30, 2016 |
Dec. 31, 2015 |
|---|---|---|
| Derivative [Line Items] | ||
| Derivative Asset, Fair Value, Gross Asset | $ 8.3 | $ 171.0 |
| Derivative Liability, Fair Value, Gross | 86.6 | 5.8 |
| Short-term [Member] | ||
| Derivative [Line Items] | ||
| Derivative Asset, Fair Value, Gross Asset | 7.7 | 147.8 |
| Derivative Liability, Fair Value, Gross | 52.9 | 1.8 |
| Long-term [Member] | ||
| Derivative [Line Items] | ||
| Derivative Asset, Fair Value, Gross Asset | 0.6 | 23.2 |
| Derivative Liability, Fair Value, Gross | 33.7 | 4.0 |
| Fair Value, Measurements, Recurring [Member] | Commodity Contract [Member] | ||
| Derivative [Line Items] | ||
| Derivative Asset, Fair Value, Gross Asset | 8.3 | 171.0 |
| Derivative Liability, Fair Value, Gross | 86.6 | 5.8 |
| Fair Value, Measurements, Recurring [Member] | Commodity Contract [Member] | Short-term [Member] | ||
| Derivative [Line Items] | ||
| Derivative Asset, Fair Value, Gross Asset | 7.7 | 147.8 |
| Derivative Liability, Fair Value, Gross | 52.9 | 1.8 |
| Fair Value, Measurements, Recurring [Member] | Commodity Contract [Member] | Long-term [Member] | ||
| Derivative [Line Items] | ||
| Derivative Asset, Fair Value, Gross Asset | 0.6 | 23.2 |
| Derivative Liability, Fair Value, Gross | $ 33.7 | $ 4.0 |
| X | ||||||||||
- Definition Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Fair value, before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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Derivative Contracts Gain (Loss) in Statement of Financial Performance (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2016 |
Jun. 30, 2015 |
Jun. 30, 2016 |
Jun. 30, 2015 |
|
| Derivative [Line Items] | ||||
| Realized gain (loss) on commodity derivative contracts not designated as hedging instruments | $ 49.5 | $ 92.3 | $ 113.9 | $ 196.7 |
| Unrealized gain (loss) on commodity derivative contracts not designated as hedging instruments | (230.0) | (158.3) | (243.5) | (181.8) |
| Realized and Unrealized Gain (Loss) on Commodity Derivative Contracts Not Designated as Hedging Instruments | (180.5) | (66.0) | (129.6) | 14.9 |
| Oil derivative contracts [Member] | Production [Member] | ||||
| Derivative [Line Items] | ||||
| Realized gain (loss) on commodity derivative contracts not designated as hedging instruments | 19.9 | 64.5 | 60.7 | 148.5 |
| Unrealized gain (loss) on commodity derivative contracts not designated as hedging instruments | (107.7) | (123.7) | (135.6) | (156.8) |
| Natural gas derivative contracts [Member] | Production [Member] | ||||
| Derivative [Line Items] | ||||
| Realized gain (loss) on commodity derivative contracts not designated as hedging instruments | 28.9 | 28.1 | 50.4 | 46.0 |
| Unrealized gain (loss) on commodity derivative contracts not designated as hedging instruments | (120.2) | (34.5) | (104.8) | (23.1) |
| Natural gas derivative contracts [Member] | Storage [Member] | ||||
| Derivative [Line Items] | ||||
| Realized gain (loss) on commodity derivative contracts not designated as hedging instruments | 0.7 | (0.3) | 2.8 | 2.2 |
| Unrealized gain (loss) on commodity derivative contracts not designated as hedging instruments | $ (2.1) | $ (0.1) | $ (3.1) | $ (1.9) |
| X | ||||||||||
- Definition Total Realized and Unrealized Gain (Loss) on Commodity Derivative Contracts Not Designated as Hedging Instruments No definition available.
|
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- Definition Represents the realized gain (loss) on commodity derivative contracts not designated as hedging instruments for the period. No definition available.
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- Definition Represents the unrealized gain (loss) on commodity derivative contracts not designated as hedging instruments for the period. No definition available.
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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Restructuring Costs Narrative (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | |
|---|---|---|---|
Jun. 30, 2016 |
Jun. 30, 2016 |
Dec. 31, 2015 |
|
| Denver Restructuring [Member] | |||
| Restructuring Cost and Reserve [Line Items] | |||
| Reduction of Employees - Restructuring | 6.00% | 6.00% | |
| Restructuring and Related Cost, Expected Cost | $ 1.9 | $ 1.9 | |
| Denver Restructuring [Member] | One-time Termination Benefits [Member] | |||
| Restructuring Cost and Reserve [Line Items] | |||
| Restructuring and Related Cost, Expected Cost | 1.8 | 1.8 | |
| Denver Restructuring [Member] | Employee Relocation [Member] | |||
| Restructuring Cost and Reserve [Line Items] | |||
| Restructuring and Related Cost, Expected Cost Remaining | 0.1 | 0.1 | |
| Tulsa Regional Office [Member] | |||
| Restructuring Cost and Reserve [Line Items] | |||
| Restructuring and Related Cost, Expected Cost | $ 8.5 | ||
| Tulsa Regional Office [Member] | One-time Termination Benefits [Member] | |||
| Restructuring Cost and Reserve [Line Items] | |||
| Restructuring and Related Cost, Expected Cost | 5.3 | ||
| Tulsa Regional Office [Member] | Employee Relocation [Member] | |||
| Restructuring Cost and Reserve [Line Items] | |||
| Restructuring and Related Cost, Expected Cost | 3.2 | ||
| Restructuring and Related Cost, Incurred Cost | $ 0.2 | $ 0.5 | |
| Restructuring and Related Cost, Expected Cost Remaining | $ 0.3 |
| X | ||||||||||
- Definition Reduction of Employees - Restructuring No definition available.
|
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- Definition Amount expected to be recognized in earnings for the specified restructuring cost. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of expected cost remaining for the specified restructuring cost. No definition available.
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- Definition Discloses the amount charged against the accrued restructuring reserves, or earnings if not previously accrued, during the period for the specified type of restructuring cost. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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Debt (Narrative) (Details) - USD ($) $ in Millions |
6 Months Ended | |
|---|---|---|
Jun. 30, 2016 |
Dec. 31, 2015 |
|
| Debt Instrument [Line Items] | ||
| Debt Maturity Period | 5 years | |
| Principal amount of senior notes outstanding | $ 2,221.8 | |
| Debt Instrument, Maturity Date Range, Start | Sep. 01, 2016 | |
| Debt Instrument, Maturity Date Range, End | May 01, 2023 | |
| Senior Notes, stated interest rate, minimum (in hundredths) | 5.25% | |
| Senior Notes, stated interest rate, maximim (in hundredths) | 6.875% | |
| Revolving Credit Facility due 2019 [Member] | ||
| Debt Instrument [Line Items] | ||
| Maturity date of long-term debt | Dec. 02, 2019 | |
| Borrowing capacity | $ 1,800.0 | |
| Letters of credit outstanding | $ 2.8 | $ 3.4 |
| 6.05% Senior Notes due 2016 [Member] | ||
| Debt Instrument [Line Items] | ||
| Long-term debt, interest rate (in hundredths) | 6.05% | |
| Maturity date of long-term debt | Sep. 01, 2016 | |
| 6.80% Senior Notes due 2018 [Member] | ||
| Debt Instrument [Line Items] | ||
| Long-term debt, interest rate (in hundredths) | 6.80% | |
| Maturity date of long-term debt | Apr. 01, 2018 | |
| 6.80% Senior Notes Due 2020 [Member] | ||
| Debt Instrument [Line Items] | ||
| Long-term debt, interest rate (in hundredths) | 6.80% | |
| Maturity date of long-term debt | Mar. 01, 2020 | |
| 6.875% Senior Notes Due 2021 [Member] | ||
| Debt Instrument [Line Items] | ||
| Long-term debt, interest rate (in hundredths) | 6.875% | |
| Maturity date of long-term debt | Mar. 01, 2021 |
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- Definition Debt Instrument, Stated Rate Range, Maximum No definition available.
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- Definition Debt Maturity Period No definition available.
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- Definition Debt instrument, Stated Rate Range, Minimum No definition available.
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- Definition Contractual interest rate for funds borrowed, under the debt agreement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Latest date the outstanding debt instruments are required to be repaid, in CCYY-MM-DD format. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Earliest date the outstanding debt instruments are required to be repaid, in CCYY-MM-DD format. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The total amount of the contingent obligation under letters of credit outstanding as of the reporting date. No definition available.
|
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- Definition Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Including the current and noncurrent portions, carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer). Senior note holders are paid off in full before any payments are made to junior note holders. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Debt Schedule of Debt Instruments (Details) - USD ($) $ in Millions |
Jun. 30, 2016 |
Dec. 31, 2015 |
|---|---|---|
| Debt Instrument [Line Items] | ||
| Less unamortized discount | $ (27.2) | $ (30.3) |
| Long-term debt | 2,194.6 | 2,191.5 |
| Less: current portion of long-term debt | (176.8) | (176.8) |
| Total long-term debt outstanding | 2,017.8 | 2,014.7 |
| Revolving Credit Facility due 2019 [Member] | ||
| Debt Instrument [Line Items] | ||
| Long-term Debt, Gross | 0.0 | 0.0 |
| Senior Notes Due 2016 [Member] | ||
| Debt Instrument [Line Items] | ||
| Long-term Debt, Gross | 176.8 | 176.8 |
| Senior Notes Due 2018 [Member] | ||
| Debt Instrument [Line Items] | ||
| Long-term Debt, Gross | 134.0 | 134.0 |
| Senior Notes Due 2020 [Member] | ||
| Debt Instrument [Line Items] | ||
| Long-term Debt, Gross | 136.0 | 136.0 |
| 6.875% Senior Notes Due 2021 [Member] | ||
| Debt Instrument [Line Items] | ||
| Long-term Debt, Gross | 625.0 | 625.0 |
| Senior Notes Due 2022 [Member] | ||
| Debt Instrument [Line Items] | ||
| Long-term Debt, Gross | 500.0 | 500.0 |
| 5.25% Senior Notes Due 2023 [Member] | ||
| Debt Instrument [Line Items] | ||
| Long-term Debt, Gross | $ 650.0 | $ 650.0 |
| X | ||||||||||
- Definition Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition Amount, after accumulated amortization, of debt discount. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Carrying value as of the balance sheet date of the portion of long-term, uncollateralized debt obligations due within one year or the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Contingencies (Narrative) (Details) $ in Millions |
6 Months Ended |
|---|---|
|
Jun. 30, 2016
USD ($)
| |
| Rocky Mountain Resources Lawsuit [Member] | |
| Loss Contingencies [Line Items] | |
| Loss Contingency, Range of Possible Loss, Minimum | $ 0.0 |
| Loss Contingency, Range of Possible Loss, Maximum | 20.0 |
| Litigation Settlement, Amount | $ 16.7 |
| Litigation Settlement Statutory Interest Rate | 10.00% |
| Loss Contingency Bond Posted | $ 20.0 |
| Gas Purchase Agreement Arbitration [Member] | |
| Loss Contingencies [Line Items] | |
| Loss Contingency, Range of Possible Loss, Minimum | 0.0 |
| Loss Contingency, Range of Possible Loss, Maximum | $ 2.5 |
| X | ||||||||||
- Definition Litigation Settlement Statutory Interest Rate No definition available.
|
| X | ||||||||||
- Definition Loss Contingency Bond Posted No definition available.
|
| X | ||||||||||
- Definition Loss Contingency, Estimate of Possible Loss, Maximum No definition available.
|
| X | ||||||||||
- Definition Loss on Contingency, Estimate of Possible Loss, Minimum No definition available.
|
| X | ||||||||||
- Definition Amount of judgment or settlement awarded to (against) the entity in respect of litigation. No definition available.
|
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Details
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| X | ||||||||||
- Details
|
Share-Based Compensation (Narrative) (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions |
6 Months Ended | |
|---|---|---|
Jun. 30, 2016 |
Jun. 30, 2015 |
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||
| Shares available for future grants | 7.1 | |
| Share-based compensation | $ 19.1 | $ 15.6 |
| Employee Stock Option [Member] | ||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||
| Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value | $ 0.1 | |
| Unrecognized compensation costs | $ 2.3 | |
| Weighted average period for recognition of equity-based compensation expense | 2 years 2 months 21 days | |
| Restricted Stock [Member] | ||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||
| Weighted average grant date fair value, grants | $ 10.25 | $ 21.66 |
| Unrecognized compensation costs | $ 28.8 | |
| Weighted average period for recognition of equity-based compensation expense | 2 years 4 months 4 days | |
| Award vesting period | 3 years | |
| Total fair value of stock that vested during the period | $ 21.4 | $ 18.1 |
| Performance Share Units [Member] | ||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||
| Weighted average grant date fair value, grants | $ 10.12 | $ 21.69 |
| Unrecognized compensation costs | $ 16.7 | |
| Weighted average period for recognition of equity-based compensation expense | 2 years 1 month 23 days | |
| Restricted Stock Units (RSUs) [Member] | ||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||
| Weighted average grant date fair value, grants | $ 10.12 | |
| Unrecognized compensation costs | $ 0.3 | |
| Weighted average period for recognition of equity-based compensation expense | 2 years 10 months 10 days | |
| X | ||||||||||
- Definition Unrecognized cost of unvested share-based compensation awards. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Definition The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
Share-Based Compensation Share-based compensation expense (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2016 |
Jun. 30, 2015 |
Jun. 30, 2016 |
Jun. 30, 2015 |
|
| Share-based Compensation Expense [Line Items] | ||||
| Share-based Compensation | $ 11.1 | $ 6.5 | $ 19.1 | $ 15.6 |
| Employee Stock Option [Member] | ||||
| Share-based Compensation Expense [Line Items] | ||||
| Share-based Compensation | 0.5 | 0.7 | 1.2 | 1.5 |
| Restricted Stock [Member] | ||||
| Share-based Compensation Expense [Line Items] | ||||
| Share-based Compensation | 5.7 | 6.4 | 12.2 | 12.7 |
| Performance Share Units [Member] | ||||
| Share-based Compensation Expense [Line Items] | ||||
| Share-based Compensation | 4.8 | (0.6) | 5.6 | 1.4 |
| Restricted Stock Units (RSUs) [Member] | ||||
| Share-based Compensation Expense [Line Items] | ||||
| Share-based Compensation | $ 0.1 | $ 0.0 | $ 0.1 | $ 0.0 |
| X | ||||||||||
- Definition [Line Items] for Share-based Compensation Expense [Table] No definition available.
|
| X | ||||||||||
- Definition Amount of capitalized and expensed compensation cost from equity-based compensation arrangements. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
Share-Based Compensation Fair Value Of Options Granted And Major Assumptions Used (Details) |
6 Months Ended |
|---|---|
|
Jun. 30, 2016
$ / shares
| |
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |
| Weighted-average grant-date fair value of awards granted during the period | $ 3.76 |
| Weighted-average risk-free interest rate | 1.15% |
| Weighted-average expected price volatility | 43.40% |
| Expected dividend yield | 0.00% |
| Expected term in years at the date of grant | 4 years 6 months |
| X | ||||||||||
- Definition The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The risk-free interest rate assumption that is used in valuing an option on its own shares. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Weighted average expected volatility rate of share-based compensation awards. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Definition The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Expected term of share-based compensation awards, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
Share-Based Compensation Schedule Of Stock Option Transactions (Details) $ / shares in Units, $ in Millions |
6 Months Ended |
|---|---|
|
Jun. 30, 2016
USD ($)
$ / shares
shares
| |
| Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward] | |
| Outstanding at beginning of period | shares | 2,200,776 |
| Options granted | shares | 436,726 |
| Options cancelled | shares | (486,999) |
| Outstanding at end of period | shares | 2,150,503 |
| Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract] | |
| Weighted average exercise price, beginning of year | $ / shares | $ 27.94 |
| Weighted average exercise price, granted in period | $ / shares | 10.12 |
| Weighted average exercise price, canceled in period | $ / shares | 23.77 |
| Weighted average exercise price, end of year | $ / shares | $ 25.27 |
| Options exercisable, shares | shares | 1,348,779 |
| Options exercisable, weighted average exercise price | $ / shares | $ 30.52 |
| Unvested options, shares | shares | 801,724 |
| Unvested options, weighted average exercise price | $ / shares | $ 16.43 |
| Weighted average remaining contractual term, options outstanding | 4 years 2 months 1 day |
| Weighted average remaining contractual term, options exercisable | 3 years 12 days |
| Weighted average remaining contractual term, options unvested | 6 years 25 days |
| Aggregate intrinsic value, options outstanding | $ | $ 3.3 |
| Aggregate intrinsic value, options exercisable | $ | 0.0 |
| Aggregate intrinsic value, options unvested | $ | $ 3.3 |
| X | ||||||||||
- Definition The weighted average period between the balance sheet date and expiration for all unvested portions of options outstanding under the plan, which may be expressed in a decimal value for number of years. No definition available.
|
| X | ||||||||||
- Definition The total dollar difference between fair values of the underlying shares reserved for issuance and exercise prices of unvested portions of options outstanding and currently exercisable under the option plan as of the balance sheet date. No definition available.
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Gross number of share options (or share units) granted during the period. No definition available.
|
| X | ||||||||||
- Definition The addition or reduction in the number of reserved shares that could potentially be issued under the option plan attributable to reasons other than grants, exercises, forfeitures, and expirations during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Number of options outstanding, including both vested and non-vested options. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
|
| X | ||||||||||
- Definition Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options. No definition available.
|
| X | ||||||||||
- Definition Weighted average price at which grantees could acquire or could have acquired the underlying shares with respect to any other type of change in shares reserved for issuance. No definition available.
|
| X | ||||||||||
- Definition Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Number of non-vested options outstanding. No definition available.
|
| X | ||||||||||
- Definition Weighted average grant-date fair value of non-vested options outstanding. No definition available.
|
| X | ||||||||||
- Definition Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
Share-Based Compensation Schedule of Restricted Share Awards Transactions (Details) - Restricted Stock [Member] - $ / shares |
6 Months Ended | |
|---|---|---|
Jun. 30, 2016 |
Jun. 30, 2015 |
|
| Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] | ||
| Unvested balance at beginning of period | 2,008,210 | |
| Shares granted | 2,390,046 | |
| Shares vested | (829,128) | |
| Shares forfeited | (201,802) | |
| Unvested balance at end of period | 3,367,326 | |
| Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Additional Disclosures [Abstract] | ||
| Weighted average grant date fair value, beginning of period | $ 24.18 | |
| Weighted average grant date fair value, grants | 10.25 | $ 21.66 |
| Weighted average grant date fair value, vested | 25.79 | |
| Weighted average grant date fair value, forfeited | 14.27 | |
| Weighted average grant date fair value, end of period | $ 14.49 | |
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
|
| X | ||||||||||
- Definition The weighted average fair value of nonvested awards on equity-based plans excluding option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, revenue or profit achievement stock award plan) for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares or units. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Details
|
Share-Based Compensation Schedule Of Performance Share Unit Transactions (Details) - Performance Share Units [Member] - $ / shares |
6 Months Ended | |
|---|---|---|
Jun. 30, 2016 |
Jun. 30, 2015 |
|
| Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] | ||
| Unvested balance at beginning of period | 630,786 | |
| Shares granted | 594,245 | |
| Shares vested | (178,169) | |
| Shares forfeited | (3,942) | |
| Unvested balance at end of period | 1,042,920 | |
| Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Additional Disclosures [Abstract] | ||
| Weighted average grant date fair value, beginning of period | $ 27.50 | |
| Weighted average grant date fair value, grants | 10.12 | $ 21.69 |
| Weighted average grant date fair value, vested | 30.07 | |
| Weighted average grant date fair value, forfeited | 28.42 | |
| Weighted average grant date fair value, end of period | $ 17.15 | |
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
|
| X | ||||||||||
- Definition The weighted average fair value of nonvested awards on equity-based plans excluding option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, revenue or profit achievement stock award plan) for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares or units. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Details
|
Share-Based Compensation Schedule of Restricted Share Unit Transactions (Details) - Restricted Stock Units (RSUs) [Member] |
6 Months Ended |
|---|---|
|
Jun. 30, 2016
$ / shares
shares
| |
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |
| Unvested balance at beginning of period | shares | 0 |
| Weighted average grant date fair value, beginning of period | $ / shares | $ 0.00 |
| Shares granted | shares | 21,493 |
| Weighted average grant date fair value, grants | $ / shares | $ 10.12 |
| Shares vested | shares | (193) |
| Weighted average grant date fair value, vested | $ / shares | $ 10.12 |
| Shares forfeited | shares | (3,266) |
| Weighted average grant date fair value, forfeited | $ / shares | $ 10.12 |
| Unvested balance at end of period | shares | 18,034 |
| Weighted average grant date fair value, end of period | $ / shares | $ 10.12 |
| X | ||||||||||
- Definition The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The weighted average fair value of nonvested awards on equity-based plans excluding option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, revenue or profit achievement stock award plan) for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares or units. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Details
|
Employee Benefits (Narrative) (Details) $ in Millions |
6 Months Ended |
|---|---|
|
Jun. 30, 2016
USD ($)
| |
| Funded Pension Plan [Member] | |
| Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] | |
| Pension Contributions | $ 4.0 |
| Unfunded Pension Plan [Member] | |
| Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] | |
| Pension Contributions | 1.5 |
| Defined Benefit Plans, Estimated Future Employer Contributions in Current Fiscal Year | 2.1 |
| Other Postretirement Benefit Plan [Member] | |
| Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] | |
| Defined Benefit Plans, Estimated Future Employer Contributions in Current Fiscal Year | 0.2 |
| Other Postretirement Benefits Payments | $ 0.1 |
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Definition Amount of employer's best estimate of contributions expected to be paid to the plan in the current remaining fiscal period. No definition available.
|
| X | ||||||||||
- Definition The amount of cash or cash equivalents contributed during the reporting period by the entity to fund non-pension postretirement benefits. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The amount of cash or cash equivalents contributed by the entity to fund its pension plans. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
Employee Benefits Schedule of Net Periodic Benefit Cost (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | |||||||
|---|---|---|---|---|---|---|---|---|---|
Jun. 30, 2016 |
Jun. 30, 2015 |
Jun. 30, 2016 |
Jun. 30, 2015 |
||||||
| Pension Plan [Member] | |||||||||
| Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] | |||||||||
| Service cost | $ 0.4 | $ 0.4 | $ 0.6 | $ 1.0 | |||||
| Interest cost | 1.4 | 1.1 | 2.6 | 2.4 | |||||
| Expected return on plan assets | (1.4) | (1.4) | (2.8) | (2.8) | |||||
| Amortization of prior service costs | [1] | 0.3 | 0.1 | 0.4 | 0.9 | ||||
| Amortization of actuarial losses | [1] | 0.4 | 0.0 | 0.6 | 0.3 | ||||
| Curtailment loss | [2] | 0.0 | 11.2 | 0.0 | 11.2 | ||||
| Periodic expense | 1.1 | 11.4 | 1.4 | 13.0 | |||||
| Other Postretirement Benefit Plan [Member] | |||||||||
| Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] | |||||||||
| Interest cost | 0.0 | 0.0 | 0.1 | 0.1 | |||||
| Amortization of prior service costs | [1] | 0.1 | 0.1 | 0.1 | 0.1 | ||||
| Periodic expense | $ 0.1 | $ 0.1 | $ 0.2 | $ 0.2 | |||||
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- Definition The amount of gains or losses recognized in net periodic benefit cost. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The amount of the prior service cost or credit recognized in net periodic benefit cost relating to benefit changes attributable to plan participants' prior service pursuant to a plan amendment or a plan initiation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition An amount calculated as a basis for determining the extent of delayed recognition of the effects of changes in the fair value of assets. The expected return on plan assets is determined based on the expected long-term rate of return on plan assets and the market-related value of plan assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The increase in a defined benefit pension plan's projected benefit obligation or a defined benefit postretirement plan's accumulated postretirement benefit obligation due to the passage of time. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The total amount of net periodic benefit cost for defined benefit plans for the period. Periodic benefit costs include the following components: service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) due to settlements or curtailments. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The amount of net gain (loss) recognized in net periodic benefit cost as a result of an event that significantly reduces the expected years of future service of present employees or eliminates for a significant number of employees the accrual of defined benefits for some or all of their future services. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The actuarial present value of benefits attributed by the pension benefit formula to services rendered by employees during the period. The portion of the expected postretirement benefit obligation attributed to employee service during the period. The service cost component is a portion of the benefit obligation and is unaffected by the funded status of the plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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