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Document and Entity Information	3 Months Ended
Document and Entity Information	Mar. 31, 2020 shares
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2020
Document Transition Report	false
Entity File Number	001-34778
Entity Registrant Name	QEP RESOURCES, INC.
Entity Incorporation, State or Country Code	DE
Entity Central Index Key	0001108827
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q1
Amendment Flag	false
Entity Tax Identification Number	87-0287750
Entity Address, Address Line One	1050 17th Street, Suite 800
Entity Address, City or Town	Denver
Entity Address, State or Province	CO
Entity Address, Postal Zip Code	80265
City Area Code	303
Local Phone Number	672-6900
Title of 12(b) Security	Common stock, $0.01 par value
Trading Symbol	QEP
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding	242,182,385

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Revenues [Abstract]
Revenues	$ 225.8	$ 280.6
Operating Expenses [Abstract]
General and administrative	15.9	63.3
Production and property taxes	18.7	24.0
Depreciation, depletion and amortization	142.2	123.3
Impairment	0.0	5.0
Total Operating Expenses	236.7	283.2
Net gain (loss) from asset sales, inclusive of restructuring costs	3.7	(13.2)
OPERATING INCOME (LOSS)	(7.2)	(15.8)
Realized and unrealized gains (losses) on derivative contracts	449.9	(181.7)
Interest and other income (expense)	(2.6)	2.8
Gain from early extinguishment of debt	25.2	0.0
Interest expense	(31.6)	(34.0)
INCOME (LOSS) BEFORE INCOME TAXES	433.7	(228.7)
Income tax (provision) benefit	(66.3)	112.0
Net income (loss)	$ 367.4	$ (116.7)
Earnings Per Share [Abstract]
Basic	$ 1.54	$ (0.49)
Diluted	$ 1.54	$ (0.49)
Weighted Average Number of Shares Outstanding, Diluted [Abstract]
Used in basic calculation	239.1	237.1
Used in diluted calculation	239.1	237.1
Oil and Gas, Exploration and Production [Member]
Revenues [Abstract]
Revenues	$ 221.8	$ 275.6
Product and Service, Other [Member]
Revenues [Abstract]
Revenues	0.4	3.7
Oil and Gas, Purchased [Member]
Revenues [Abstract]
Revenues	3.6	1.3
Operating Expenses [Abstract]
Operating Costs and Expenses	3.5	1.4
Lease Operating Expense [Member]
Operating Expenses [Abstract]
Operating Costs and Expenses	40.2	51.5
Natural Gas, Gathering, Transportation, Marketing and Processing [Member]
Operating Expenses [Abstract]
Operating Costs and Expenses	13.5	10.9
Gathering and other expense [Member]
Operating Expenses [Abstract]
Operating Costs and Expenses	$ 2.7	$ 3.8

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 367.4	$ (116.7)
Pension and other postretirement plans adjustments:
Amortization of prior service costs	0.0	0.1
Amortization of actuarial losses	0.1	0.1
Net curtailment (1)		(0.4)
Other comprehensive income (loss)	0.1	(0.2)
Comprehensive income (loss)	$ 367.5	$ (116.9)

- 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.

+ References + Details

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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- Definition

Amount, after tax, of reclassification adjustment from accumulated other comprehensive (income) loss for prior service cost (credit) of defined benefit plan.

+ References + Details

- Definition

Amount, after tax, of increase (decrease) to other comprehensive income from settlement and curtailment gain (loss) of defined benefit plan.

+ References + Details

- Definition

Amount after tax and reclassification adjustments of other comprehensive income (loss).

+ References + Details

- Definition

Amount, after tax, of reclassification adjustment from accumulated other comprehensive income (loss) for gain (loss) of defined benefit plan.

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CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) (Parenthetical) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Statement of Comprehensive Income [Abstract]
Other Comprehensive Income (Loss), Defined Benefit Plan, Adjustment for Settlement or Curtailment Gain (Loss), Tax	$ 0.0	$ (0.1)

CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Current Assets
Cash and cash equivalents	$ 70.3	$ 166.3
Accounts receivable, net	81.1	108.4
Income tax receivable	165.4	37.4
Fair value of derivative contracts	370.6	1.5
Prepaid expenses and other current assets	9.6	11.6
Total Current Assets	697.0	325.2
Property, Plant and Equipment (successful efforts method for oil and gas properties)
Proved properties	9,729.5	9,574.9
Unproved properties	565.7	599.1
Gathering and other	164.9	164.2
Materials and supplies	16.5	15.6
Total Property, Plant and Equipment	10,476.6	10,353.8
Less Accumulated Depreciation, Depletion and Amortization
Exploration and production	5,339.4	5,250.5
Gathering and other	63.7	61.0
Total Accumulated Depreciation, Depletion and Amortization	5,403.1	5,311.5
Net Property, Plant and Equipment	5,073.5	5,042.3
Fair value of derivative contracts	19.1	0.2
Operating lease right-of-use assets, net	55.0	56.8
Other noncurrent assets	51.2	53.3
TOTAL ASSETS	5,895.8	5,477.8
Current Liabilities
Checks outstanding in excess of cash balances	4.2	18.3
Accounts payable and accrued expenses	243.1	227.2
Production and property taxes	7.9	18.9
Current portion of long term debt	331.6	0.0
Interest payable	31.1	31.0
Fair value of derivative contracts	0.0	18.7
Current operating lease lease liabilities	18.5	18.0
Asset retirement obligations	6.5	6.0
Total Current Liabilities	642.9	338.1
Long-term debt	1,587.4	2,015.6
Deferred income taxes	469.6	274.5
Asset retirement obligations	93.7	94.9
Fair value of derivative contracts	0.0	0.5
Operating lease liabilities	42.3	44.8
Other long-term liabilities	33.9	48.8
Commitments and contingencies (Note 11)
EQUITY
Common stock – par value $0.01 per share; 500.0 million shares authorized; 247.0 million and 242.1 million shares issued, respectively	2.5	2.4
Treasury stock – 4.8 million and 4.4 million shares, respectively	(56.2)	(55.4)
Additional paid-in capital	1,459.9	1,456.5
Retained earnings	1,632.2	1,269.6
Accumulated other comprehensive income (loss)	(12.4)	(12.5)
Total Common Shareholders' Equity	3,026.0	2,660.6
TOTAL LIABILITIES AND EQUITY	$ 5,895.8	$ 5,477.8

CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical) - $ / shares shares in Millions	Mar. 31, 2020	Dec. 31, 2019
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)	247.0	242.1
Treasury stock (in shares)	4.8	4.4

- 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.

+ References + Details

CONDENSED CONSOLIDATED STATEMENTS OF EQUITY (Unaudited) Statement - USD ($) shares in Millions, $ in Millions	Total	Common Stock, Value [Member]	Treasury Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Other Comprehensive Income (Loss) [Member]
Stockholders' Equity	$ 2,750.9	$ 2.4	$ (45.6)	$ 1,431.9	$ 1,376.5	$ (14.3)
Common Stock, Shares		239.8
Treasury Stock, Shares			(3.1)
Stockholders' Equity	2,636.1	$ 2.4	$ (51.8)	1,440.2	1,259.8	(14.5)
Net income (loss)	(116.7)				(116.7)
Share-based compensation, Shares		2.2
Share-based compensation	2.1	$ 0.0	$ 6.2	8.3	0.0	0.0
Shares Paid for Tax Withholding for Share Based Compensation			(0.8)
Change in pension and postretirement liability, net of tax	(0.2)					(0.2)
Stockholders' Equity at Mar. 31, 2019	2,636.1	2.4	$ (51.8)	1,440.2	1,259.8	(14.5)
Stockholders' Equity	2,636.1	$ 2.4	$ (51.8)	1,440.2	1,259.8	(14.5)
Common Stock, Shares		242.0
Treasury Stock, Shares			(3.9)
Stockholders' Equity	$ 2,660.6	$ 2.4	$ (55.4)	1,456.5	1,269.6	(12.5)
Common Stock, Shares		242.1
Treasury Stock, Shares	(4.4)		(4.4)
Stockholders' Equity	$ 3,026.0	$ 2.5	$ (56.2)	1,459.9	1,632.2	(12.4)
Net income (loss)	367.4				367.4
Cash dividends paid, $0.02 per share	(4.8)				(4.8)
Share-based compensation, Shares		4.9
Share-based compensation	2.7	$ 0.1	$ (0.8)	3.4	0.0	0.0
Shares Paid for Tax Withholding for Share Based Compensation			(0.4)
Change in pension and postretirement liability, net of tax	0.1					0.1
Stockholders' Equity at Mar. 31, 2020	3,026.0	2.5	$ (56.2)	1,459.9	1,632.2	(12.4)
Stockholders' Equity	$ 3,026.0	$ 2.5	$ (56.2)	$ 1,459.9	$ 1,632.2	$ (12.4)
Common Stock, Shares		247.0
Treasury Stock, Shares	(4.8)		(4.8)

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References

+ Details

- Definition

Amount, after tax and reclassification adjustment, of (increase) decrease in accumulated other comprehensive income for defined benefit plan.

+ References + Details

- 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.

+ References + Details

- 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.

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- 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.

+ References + Details

- Definition

+ References + Details

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
OPERATING ACTIVITIES
Net income (loss)	$ 367.4	$ (116.7)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation, depletion and amortization	142.2	123.3
Deferred income taxes (benefit)	195.0	(117.9)
Impairment	0.0	5.0
Non-cash share-based compensation	3.3	8.0
Amortization of debt issuance costs and discounts	1.3	1.3
Net (gain) loss from asset sales, inclusive of restructuring costs	(3.7)	13.2
Gain from early extinguishment of debt	(25.2)	0.0
Unrealized (gains) losses on marketable securities	3.3	(1.9)
Unrealized (gains) losses on derivative contracts	(407.3)	175.8
Changes in operating assets and liabilities	(124.4)	(11.8)
Net Cash Provided by (Used in) Operating Activities	151.9	78.3
INVESTING ACTIVITIES
Property acquisitions	(3.0)	(0.6)
Expenditures for property, plant and equipment, including exploratory well expense	(164.6)	(164.6)
Proceeds from disposition of assets	12.6	617.4
Net Cash Provided by (Used in) Investing Activities	(155.0)	452.2
FINANCING ACTIVITIES
Checks outstanding in excess of cash balances	(14.1)	(4.3)
Repurchases of senior notes	(72.7)	0.0
Proceeds from credit facility	0.0	44.5
Repayments of credit facility	0.0	(474.5)
Treasury stock repurchases	(0.8)	(5.8)
Dividends paid	(4.8)	0.0
Net Cash Provided by (Used in) Financing Activities	(92.4)	(440.1)
Change in cash, cash equivalents and restricted cash(1)	(95.5)	90.4
Beginning cash, cash equivalents and restricted cash(1)	196.4	28.1
Ending cash, cash equivalents and restricted cash(1)	100.9	118.5
Supplemental Disclosures:
Cash paid for interest, net of capitalized interest	29.7	31.5
Cash paid (refund received) for income taxes, net	(0.7)	0.0
Cash paid for amounts included in the measurement of lease liabilities	6.0	6.6
Right-of-use assets obtained in exchange for operating lease liabilities	0.5	6.9
Non-cash Investing Activities:
Capital expenditure accruals as of March 31, 2020 and 2019	$ 77.3	$ 57.2

Basis of Presentation

3 Months Ended

Mar. 31, 2020

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Basis of Presentation [Text Block]

Nature of Business

QEP Resources, Inc. (QEP or the Company) is an independent crude oil and natural gas exploration and production company with operations in two regions of the United States: the Southern Region (primarily in Texas) and the Northern Region (primarily in North Dakota). 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

The interim Condensed Consolidated Financial Statements (financial statements) contain the accounts of QEP and its majority-owned or controlled subsidiaries. The financial statements were prepared in accordance with Generally Accepted Accounting Principles (GAAP) in the United States and with the instructions for Quarterly Reports on Form 10-Q and Regulation S-X. All significant intercompany accounts and transactions have been eliminated in consolidation.

The 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 financial statements do not include all of the information and notes required by GAAP for annual consolidated financial statements. These 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, 2019 .

The preparation of the 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. Further, these estimates and other factors, including those outside the Company's control, such as the impact of sustained lower commodity prices, could have a significant adverse impact to the Company's financial condition, results of operations and cash flows. The results of operations for the three months ended March 31, 2020 , are not necessarily indicative of the results that may be expected for the year ending December 31, 2020 .

Certain prior period balances on the Condensed Consolidated Balance Sheets (balance sheets) and Condensed Consolidated Statements of Cash Flows (statements of cash flows) have been reclassified to conform to the current year presentation. Such reclassifications had no effect on the Company's net income (loss), earnings (loss) per share or retained earnings previously reported.

Cash, Cash Equivalents and Restricted Cash

Cash equivalents primarily consist of highly liquid investments in securities with original maturities of three months or less made through commercial bank accounts that result in available funds the next business day. Restricted cash are funds that are legally or contractually reserved for a specific purpose and therefore not available for immediate or general business use.

The following table provides a reconciliation of cash, cash equivalents and restricted cash reported within the balance sheets to the amounts shown in the statements of cash flows:



	March 31,
	2020		2019
	(in millions)
Cash and cash equivalents	$	70.3	$	89.9
Restricted cash ⁽¹⁾	30.6		28.6
Total cash, cash equivalents and restricted cash shown in the statements of cash flows	$	100.9	$	118.5

_______________________

⁽¹⁾ As of March 31, 2020 and 2019 , the restricted cash balance is cash held in an escrow account related to a title dispute between outside parties in the Williston Basin. The restricted cash balance is recorded within "Other noncurrent assets" on the balance sheets.

Income Tax

The tax legislation enacted in December 2017 reduced our federal corporate tax rate from 35% to 21% . In addition, the tax legislation eliminated the corporate Alternative Minimum Tax (AMT), allowing the Company to claim AMT refunds for AMT credits carried forward from prior tax years. The Company received $73.9 million of AMT credit refunds in 2019. The Coronavirus Aid Relief, and Economic Security Act (CARES Act) enacted in March 2020 permitted the Company to carry back its net operating loss (NOL) generated in 2018, creating additional AMT credits, and accelerate all of its AMT refunds into 2020. The Company now anticipates it will receive $165.6 million of AMT credit refunds, after carrybacks, in the next 12 months. The AMT credit refunds are included in "Income tax receivable" on the balance sheets as of March 31, 2020 .

QEP’s effective federal and state income tax rate was 15.3% during the first quarter of 2020 compared to a rate of 49.0% during the first quarter of 2019 . The decrease in the federal and state income tax rate was primarily driven by the impact of discrete items (unusual or infrequent items impacting the tax provision) recognized during the first quarter of 2019 and 2020 . The primary discrete item recognized during the first quarter of 2020 relates to the remeasurement of deferred taxes related to a NOL carryback under the CARES Act to a year with a higher federal tax rate. The primary discrete item recognized during the first quarter of 2019 related to the remeasurement of deferred taxes associated with the Haynesville Divestiture.

Impairment of Long-Lived Assets

During the three months ended March 31, 2020 , there were no impairment charges. During the three months ended March 31, 2019 , QEP recorded impairment charges of $5.0 million related to an office building lease.

Employee Benefits

QEP provides pension and other postretirement benefits to certain employees through three retiree benefit plans: the QEP Resources, Inc. Retirement Plan (the Pension Plan), the Supplemental Executive Retirement Plan (the SERP), and a postretirement medical plan (the Medical Plan). The Pension Plan is a closed, qualified, defined-benefit pension plan that is funded and provides pension benefits to certain QEP employees. The SERP is a nonqualified retirement plan that is unfunded and provides postretirement benefits to certain QEP employees. The Medical Plan is a self-insured plan. It is unfunded and provides other postretirement benefits including certain health care and life insurance benefits for certain retired QEP employees.

During the three months ended March 31, 2020 , the Company made contributions of $9.0 million to its retiree benefit plans (including $2.0 million to the Pension Plan and $7.0 million to the SERP) and expects to contribute an additional $3.7 million during the remainder of 2020 (including $2.0 million to the Pension Plan, $1.5 million to the SERP and $0.2 million to the Medical Plan). Contributions to the Pension Plan increase plan assets whereas contributions to the SERP and Medical Plan are used to fund current benefit payments.

The Company recognizes service costs related to SERP and Medical Plan benefits on the Condensed Consolidated Statements of Operations (statements of operations) within "General and administrative" expense. All other expenses related to the Pension Plan, SERP and Medical Plan are recognized on the statements of operations within "Interest and other income (expense)".

QEP also offers a nonqualified, unfunded deferred compensation plan (Wrap Plan) to certain individuals. The Wrap Plan provides participants with certain tax planning benefits as well as supplemental funds for retirement and allows participants to defer the receipt of various types of compensation. Participants are able to select from a variety of investment options, including mutual funds and phantom QEP shares. As of March 31, 2020 and December 31, 2019 , the Wrap Plan obligations for participants' future benefits were $21.0 million and $26.8 million , respectively, and are included in "Other long-term liabilities" on the balance sheets. The Company established a trust (Rabbi Trust) to hold the investments associated with the Wrap Plan (other than phantom QEP shares) and to pay Wrap Plan obligations as they arise. As of March 31, 2020 and December 31, 2019 , the marketable securities held in the Rabbi Trust were $20.6 million and $23.1 million , respectively, and are included in "Other noncurrent assets" on the balance sheets. Refer to Note 6 – Fair Value Measurements for information on the fair value measurement of the marketable securities held in the Rabbi Trust and the Wrap Plan obligations.

Recent Accounting Developments

In June 2016, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") No. 2016-13, Financial Instruments - Credit Losses (Topic 326) - Measurement of credit losses on financial instruments , which requires a company immediately recognize management's current estimated credit losses ("CECL") for all financial instruments that are not accounted for at fair value through net income. Previously, credit losses on financial assets were only required to be recognized when they were incurred. The Company adopted ASU 2016-13 on January 1, 2020. The guidance did not have a significant impact on the financial statements or notes accompanying the financial statements.

In August 2018, the FASB issued ASU No. 2018-13, Fair value measurement (Topic 820) - Disclosure framework - Changes to the disclosure requirements for fair value measurement , which modifies the disclosure requirements on fair value measurements in Topic 820. The Company adopted ASU 2018-13 on January 1, 2020. The guidance did not have a significant impact on the financial statements or notes accompanying the financial statements.

In March 2020, the FASB issued ASU No. 2020-04, Reference Rate Reform , which provides temporary optional guidance to companies impacted by the transition away from the London Interbank Offered Rate (LIBOR). The amendment provides certain expedients and exceptions to applying GAAP in order to lessen the potential accounting burden when contracts, hedging relationships, and other transactions that reference LIBOR as a benchmark rate are modified. This amendment is effective upon issuance and expires on December 31, 2022. The Company is currently assessing the impact of the LIBOR transition and this ASU on the Company's financial statements.

- 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.

+ References + Details

Revenue (Notes)

3 Months Ended

Mar. 31, 2020

Revenue Recognition [Abstract]

Revenue

Revenue Recognition

QEP recognizes revenue from the sale of oil and condensate, gas and NGL in the period that the performance obligations are satisfied. QEP's performance obligations are satisfied when the customer obtains control of product, when QEP has no further obligations to perform related to the sale, when the transaction price has been determined and when collectability is probable. The sale of oil and condensate, gas and NGL are made under contracts with customers, which typically include consideration that is based on pricing tied to local indices and volumes delivered in the current month. Reported revenues include estimates for the two most recent months using published commodity price indices and volumes supplied by field operators. Performance obligations under our contracts with customers are typically satisfied at a point in time through monthly delivery of oil and condensate, gas and/or NGL. Our contracts with customers typically require payment for oil and condensate, gas and NGL sales within 30 days following the calendar month of delivery.

QEP's oil and condensate is typically sold at specific delivery points under contract terms that are common in the industry. QEP's gas and NGL are also sold under contract types that are common in the industry; however, under these contracts, the gas and its components, including NGL, may be sold to a single purchaser or the residue gas and NGL may be sold to separate purchasers. Regardless of the contract type, the terms of these contracts compensate QEP for the value of the residue gas and NGL constituent components at market prices for each product. QEP also purchases and resells oil and gas primarily to mitigate credit risk related to third party purchasers, to fulfill volume commitments when production does not fulfill contractual commitments and to capture additional margin from subsequent sales of third party purchases. QEP recognizes revenue from these resale activities in the period that the performance obligations are satisfied.

The following tables present QEP's revenues that are disaggregated by revenue source and by geographic area. Transportation and processing costs in the following table are not all of the transportation and processing costs that QEP incurs, only the expenses that are netted against revenues pursuant to ASC Topic 606, Revenue Recognition .



	Oil and condensate sales		Gas sales		NGL sales		Transportation and processing costs included in revenue			Oil and condensate, gas and NGL sales, as reported
	(in millions)
	Three Months Ended March 31, 2020
Northern Region
Williston Basin	$	79.2	$	4.6	$	3.5	$	(9.3	)	$	78.0
Other Northern	0.1		0.1		—		—			0.2
Southern Region
Permian Basin	140.7		1.8		6.1		(5.0		)	143.6
Other Southern	—		—		—		—			—
Total oil and condensate, gas and NGL sales	$	220.0	$	6.5	$	9.6	$	(14.3	)	$	221.8

	Three Months Ended March 31, 2019
Northern Region
Williston Basin	$	109.9	$	12.5	$	7.4	$	(10.1	)	$	119.7
Other Northern	0.4		0.2		—		—			0.6
Southern Region
Permian Basin	139.2		4.6		9.5		(3.7		)	149.6
Other Southern	—		5.7		—		—			5.7
Total oil and condensate, gas and NGL sales	$	249.5	$	23.0	$	16.9	$	(13.8	)	$	275.6

Acquisitions & Divestitures	3 Months Ended
Acquisitions & Divestitures	Mar. 31, 2020
Business Combinations [Abstract]
Acquisitions & Divestitures [Text Block]	Acquisitions During the three months ended March 31, 2020 and 2019 , QEP acquired various oil and gas properties, which primarily included proved leasehold acreage in the Permian Basin for an aggregate purchase price of $3.0 million and $0.6 million , respectively, subject to post-closing purchase price adjustments. Divestitures During the three months ended March 31, 2020 , QEP received proceeds of $12.6 million and recorded a pre-tax gain on sale of $3.7 million , primarily related to the divestiture of certain properties outside its main operating areas. Gains and losses are reported on the statements of operations within "Net gain (loss) from asset sales, inclusive of restructuring costs". Haynesville/Cotton Valley Divestiture In January 2019, QEP sold its Haynesville/Cotton Valley assets (Haynesville Divestiture) and during the year ended December 31, 2019 , reached final settlement on asserted environmental and title defects and received aggregate net cash proceeds of $633.9 million . QEP recorded a net pre-tax loss, including restructuring costs, of $4.0 million , of which $15.0 million of the pre-tax loss was recognized during the three months ended March 31, 2019 , and was recorded within "Net gain (loss) from asset sales, inclusive of restructuring costs" on the statements of operations. During the three months ended March 31, 2019 , QEP accounted for revenues and expenses related to Haynesville/Cotton Valley, including the pre-tax loss on sale of $15.0 million , as income from continuing operations on the statements of operations because the Haynesville Divestiture did not cause a strategic shift for the Company and therefore did not qualify as discontinued operations. During the three months ended March 31, 2019 , QEP recorded a net loss before income taxes related to the divested Haynesville/Cotton Valley properties of $11.1 million , which includes the pre-tax loss on sale of $15.0 million . Other Divestitures In addition to the Haynesville Divestiture, during the three months ended March 31, 2019 , QEP received net cash proceeds of $2.1 million and recorded a pre-tax loss on sale of $0.4 million , primarily related to the divestiture of properties outside its main operating areas. These gains and losses were recorded within "Net gain (loss) from asset sales, inclusive of restructuring costs" on the statements of operations.

- 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.

+ References + Details

Earnings Per Share

3 Months Ended

Mar. 31, 2020

Earnings Per Share [Abstract]

Earnings Per Share [Text Block]

Basic earnings (loss) per share (EPS) are computed by dividing net income (loss) 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 share awards are included in weighted-average basic common shares outstanding because, once the shares are granted, the restricted share awards are considered issued and outstanding, the historical forfeiture rate is minimal and the restricted share awards 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 (loss) per share pursuant to the two-class method. The Company's unvested restricted share 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 share awards do 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 (loss) 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 (loss) per common share. The Company was in a net loss position for the three months ended March 31, 2019 ; therefore, all potentially dilutive securities were anti-dilutive.

The following is a reconciliation of the components of basic and diluted shares used in the EPS calculation:



	Three Months Ended
	March 31,
	2020	2019
	(in millions)
Weighted-average basic common shares outstanding	239.1	237.1
Potential number of shares issuable upon exercise of in-the-money stock options under the Long-Term Stock Incentive Plan	—	—
Average diluted common shares outstanding	239.1	237.1

Asset Retirement Obligations

3 Months Ended

Mar. 31, 2020

Asset Retirement Obligation [Abstract]

Asset Retirement Obligations [Text Block]

QEP records asset retirement obligations (ARO) 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 or estimated lives. The ARO liability is adjusted to present value each period through an accretion calculation using a credit-adjusted risk-free interest rate.

The balance sheet line items of QEP's ARO liability are presented in the table below:



	Asset Retirement Obligations
	March 31,		December 31,
	2020		2019
Balance Sheet line item	(in millions)
Current:
Asset retirement obligations, current liability	$	6.5	$	6.0
Long-term:
Asset retirement obligations	93.7		94.9
Total ARO Liability	$	100.2	$	100.9

The following is a reconciliation of the changes in the Company's ARO for the period specified below:



	Asset Retirement Obligations
	(in millions)
ARO liability at January 1, 2020	$	100.9
Accretion	0.9
Additions	0.6
Revisions	(0.5		)
Liabilities related to assets sold	(1.3		)
Liabilities settled	(0.4		)
ARO liability at March 31, 2020	$	100.2

Fair Value Measurements

3 Months Ended

Mar. 31, 2020

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 (refer to Note 7 – Derivative Contracts for more information) 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.

QEP has determined that the marketable securities held in the Rabbi Trust and the Wrap Plan obligations are Level 1. The fair value of the marketable securities in the Rabbi Trust is based on actively traded mutual funds. The Wrap Plan obligations, which represent the underlying liabilities to the participants in the Wrap Plan, are recorded at amounts due to participants, based on the fair value of participants' selected investments, including both actively traded mutual funds and phantom QEP shares.

The fair value of financial assets and liabilities at March 31, 2020 and December 31, 2019 , is shown in the table below:



	Fair Value Measurements
	Gross Amounts of Assets and Liabilities						Netting Adjustments ⁽¹⁾			Net Amounts Presented on the Condensed Consolidated Balance Sheets
	Level 1		Level 2		Level 3		Netting Adjustments ⁽¹⁾
	(in millions)
Financial Assets	March 31, 2020
Fair value of derivative contracts – short-term	$	—	$	375.4	$	—	$	(4.8	)	$	370.6
Fair value of derivative contracts – long-term	—		21.2		—		(2.1		)	19.1
Fair value of marketable securities	20.6		—		—		—			20.6
Total financial assets	$	20.6	$	396.6	$	—	$	(6.9	)	$	410.3

Financial Liabilities
Fair value of derivative contracts – short-term	$	—	$	4.8	$	—	$	(4.8	)	$	—
Fair value of derivative contracts – long-term	—		2.1		—		(2.1		)	—
Fair value of Wrap Plan obligations	21.0		—		—		—			21.0
Total financial liabilities	$	21.0	$	6.9	$	—	$	(6.9	)	$	21.0

	December 31, 2019
Financial Assets
Fair value of derivative contracts – short-term	$	—	$	1.5	$	—	$	—		$	1.5
Fair value of derivative contracts – long-term	—		0.2		—		—			0.2
Fair value of marketable securities	23.1		—		—		—			23.1
Total financial assets	$	23.1	$	1.7	$	—	$	—		$	24.8

Financial Liabilities
Fair value of derivative contracts – short-term	$	—	$	18.7	$	—	$	—		$	18.7
Fair value of derivative contracts – long-term	—		0.5		—		—			0.5
Fair value of Wrap Plan obligations	26.8		—		—		—			26.8
Total financial liabilities	$	26.8	$	19.2	$	—	$	—		$	46.0

_______________________


⁽¹⁾	The Company nets its derivative contract assets and liabilities outstanding with the same counterparty on the balance sheets for the contracts that contain netting provisions. Refer to Note 7 – Derivative Contracts for additional information regarding the Company's derivative contracts.

The following table discloses the fair value and related carrying amount of certain financial instruments not disclosed in other notes to the financial statements:



	Carrying Amount		Level 1 Fair Value		Carrying Amount		Level 1 Fair Value
	March 31, 2020				December 31, 2019
Financial Liabilities	(in millions)
Total debt outstanding	$	1,919.0	$	806.2	$	2,015.6	$	2,029.4

The carrying amounts of cash and cash equivalents, accounts receivable, accounts payable 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. At times when the Company has outstanding debt under the credit

facility, the carrying amount of variable-rate long-term debt approximates fair value because the floating interest rate paid on such debt is set for periods of one month or less.

The initial measurement of ARO at fair value is calculated using discounted cash flow techniques and is based on internal estimates of future retirement costs associated with property, plant and equipment. Significant Level 3 inputs used in the calculation of ARO includes 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 reviews its proved oil and gas properties and operating lease right-of-use assets for potential impairment at least annually and when events and changes in circumstances indicate that the carrying amount of such property may not be recoverable. If impairment is indicated, the fair value of property is measured utilizing the income approach and utilizing inputs that are primarily based upon internally developed cash flow models discounted at an appropriate weighted average cost of capital. In addition, the signing of a purchase and sale agreement could also trigger an impairment of proved properties. For assets subject to a purchase and sale agreement, the terms of the purchase and sale agreement are used as an indicator of fair value. If a range is estimated for the amount of future cash flows, the fair value of property is measured utilizing a probability-weighted approach in which the likelihood of possible outcomes is taken into consideration. Given the unobservable nature of the inputs, fair value calculations associated with long-term operating lease right-of-use assets and proved oil and gas property impairments are considered Level 3 within the fair value hierarchy. During the three months ended March 31, 2020 , the Company did not have an impairment charge. During the three months ended March 31, 2019 , the Company recorded impairment charges of $5.0 million related to an office building lease.

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: (i) estimated quantities of oil and condensate, gas and NGL reserves; (ii) estimates of future commodity prices; and (iii) estimated production rates, and 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 acquired properties is considered Level 3 within the fair value hierarchy. Refer to Note 3 – Acquisitions and Divestitures for more information on the fair value of acquired properties.

- 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.

+ References + Details

Derivative Contracts

3 Months Ended

Mar. 31, 2020

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, 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. QEP does not enter into commodity derivative contracts for speculative purposes.

QEP uses commodity derivative instruments known as fixed-price swaps, basis swaps or costless 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 oil or gas 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. Oil price derivative instruments are typically structured as NYMEX fixed-price swaps based at Cushing, Oklahoma. QEP has also entered into oil price derivative swaps that use Intercontinental Exchange, Inc. (ICE) Brent or regional price indices as the reference price. Gas price derivative instruments are typically structured as fixed-price swaps or collars at NYMEX Henry Hub or regional price indices. QEP also enters into oil basis swaps to achieve a fixed-price swap for a portion of its oil sales at prices that reference specific regional index prices.

QEP does not currently have any commodity derivative instruments that have margin requirements or collateral provisions that would require payments prior to the scheduled settlement dates. QEP's commodity derivative contract counterparties are typically 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, actively monitoring counterparties' public credit ratings and avoiding the 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 presents QEP's volumes and average prices for its commodity derivative swap contracts as of March 31, 2020 :



Year	Index	Total Volumes	Average Swap Price per Unit
		(in millions)
Oil sales		(bbls)	($/bbl)
2020	NYMEX WTI	11.0	$	57.75
2020	Argus WTI Midland	1.1	$	57.30
2020	Argus WTI Houston	0.5	$	60.06
2021	NYMEX WTI	1.6	$	55.04
Gas sales		(MMbtu)	($/MMbtu)
2020	IF Waha ⁽¹⁾	8.3	$	0.63
2020	NYMEX HH	5.5	$	2.11
2021	IF Waha ⁽¹⁾	7.3	$	1.47
2021	NYMEX HH	7.3	$	2.38

_______________________


⁽¹⁾	IF Waha Index pricing reported in Platts' Inside FERC's Gas Market Report, reflecting the weighted average price of Natural Gas transactions at the Waha Hub in west Texas on the first day of the month.

QEP uses oil basis swaps, combined with NYMEX WTI fixed-price swaps, to achieve fixed price swaps for the location at which it physically sells its production. The following table presents details of QEP's oil basis swaps as of March 31, 2020 :



Year	Index	Basis	Total Volumes	Weighted-Average Differential
			(in millions)
Oil sales			(bbls)	($/bbl)
2020	NYMEX WTI	Argus WTI Midland	5.2	$	0.20
2020	NYMEX WTI	Argus WTI Houston	0.2	$	3.75
2021	NYMEX WTI	Argus WTI Midland	4.4	$	0.99

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 statements of operations are summarized in the following table:



	Three Months Ended
Derivative contracts	March 31,
Derivative contracts	2020			2019
Realized gains (losses) on commodity derivative contracts	(in millions)
Production
Oil derivative contracts	$	42.6		$	(3.0	)
Gas derivative contracts	—			(2.9		)
Realized gains (losses) on commodity derivative contracts	42.6			(5.9		)
Unrealized gains (losses) on commodity derivative contracts
Production
Oil derivative contracts	413.9			(177.3		)
Gas derivative contracts	(6.6		)	(0.3		)
Unrealized gains (losses) on commodity derivative contracts	407.3			(177.6		)
Total realized and unrealized gains (losses) on commodity derivative contracts related to production	$	449.9		$	(183.5	)

Derivatives associated with Haynesville Divestiture
Unrealized gains (losses) on commodity derivative contracts
Production
Gas derivative contracts	—			1.8
Unrealized gains (losses) on commodity derivative contracts related to divestitures ⁽¹⁾	$	—		$	1.8

Total realized and unrealized gains (losses) on commodity derivative contracts	$	449.9		$	(181.7	)

_______________________

⁽¹⁾

During the three months ended March 31, 2019 , the unrealized gains (losses) on commodity derivative contracts related to the Haynesville Divestiture were comprised of derivatives included as part of the Haynesville/Cotton Valley purchase and sale agreement, which were subsequently novated to the buyer upon the closing of the sale in January 2019. Refer to Note 3 – Acquisitions and Divestitures for more information. The unrealized gains (losses) on commodity derivatives associated with the Haynesville Divestiture are offset by an equal amount recorded within "Net gain (loss) from asset sales, inclusive of restructuring costs" on the statements of operations.

Leases (Notes)

3 Months Ended

Mar. 31, 2020

Leases [Abstract]

Leases of Lessee Disclosure [Text Block]

QEP enters into contractual lease arrangements to rent office space, compressors, generators, drilling rigs and other equipment from third-party lessors. QEP records a net operating lease right-of-use (ROU) asset and operating lease liability on the balance sheets for all operating leases with a contract term in excess of 12 months. ROU assets represent QEP’s right to use an underlying asset for the lease term and lease liabilities represent QEP’s obligation to make future lease payments arising from the lease. Operating lease ROU assets and liabilities are recorded at commencement date based on the present value of lease payments over the lease term. Leases with an initial term of 12 months or less are not recorded on the balance sheets. The Company recognizes lease expense for these short-term leases on a straight-line basis over the lease term. With the exception of generators, QEP does not account for lease components separately from the non-lease components. The contractual consideration provided under QEP's leased generators is allocated between lease components, such as equipment, and non-lease components, such as maintenance service fees, based on estimated costs from the vendor. QEP uses its incremental borrowing rate at commencement date of the contract in calculating the present value of future lease payments. The incremental borrowing rate is calculated using a risk-free interest rate adjusted for QEP's risk. The operating lease ROU asset also includes any lease incentives received in the recognition of the present value of future lease payments. Certain of QEP's leases may also include escalation clauses or options to extend or terminate the lease. These options are included in the present value recorded for the leases when it is reasonably certain that QEP will exercise that option. Lease expense for lease payments is recognized on a straight-line basis over the lease term.

QEP determines if an arrangement is a lease at inception of the contract and records the resulting operating lease asset on the balance sheets as “Operating lease right-of-use assets, net” with offsetting liabilities recorded as “Current operating lease liabilities” and “Operating lease liabilities.” QEP recognizes a lease in the financial statements when the arrangement either explicitly or implicitly involves property, plant, or equipment (PP&E), the contract terms are dependent on the use of the PP&E, and QEP has the ability or right to operate the PP&E or to direct others to operate the PP&E and receive the majority of the economic benefits of the assets. As of March 31, 2020 , QEP does not have any financing leases.

Lease costs represent the straight-line lease expense of ROU assets and short-term leases. The components of lease cost are classified as follows:



	Three Months Ended		Three Months Ended
	March 31, 2020		March 31, 2019
Lease Cost included in the Condensed Consolidated Balance Sheets	(in millions)
Property, Plant and Equipment acquisitions ⁽¹⁾	$	4.4	$	4.7

	Three Months Ended		Three Months Ended
	March 31, 2020		March 31, 2019
Lease Cost included in the Condensed Consolidated Statement of Operations	(in millions)
Lease operating expense	$	2.5	$	3.1
Gathering and other expense	1.9		1.5
General and administrative	1.5		1.6

Total lease cost	$	10.3	$	10.9

____________________________


⁽¹⁾	Represents short-term lease capital expenditures related to drilling rigs for the three months ended March 31, 2020 and 2019 . These costs are capitalized as a part of "Proved properties" on the balance sheets.

Lease term and discount rate related to the Company's leases are as follows:



	Three Months Ended		Three Months Ended
	March 31, 2020		March 31, 2019
Weighted-average remaining lease term (years)	4.3		3.8
Weighted-average discount rate	7.5	%	8.1	%

As of March 31, 2020 and December 31, 2019 , the maturity analysis for long-term operating leases under the scope of ASC 842 are as follows:



	March 31, 2020			December 31, 2019
Year	(in millions)
2020	$	17.0		$	22.3
2021	21.1			20.4
2022	16.3			15.9
2023	11.0			10.6
2024	1.7			1.4
After 2024	2.5			2.4
Less: Interest ⁽¹⁾	(8.8		)	(10.2		)
Present value of lease liabilities ⁽²⁾	$	60.8		$	62.8

____________________________


⁽¹⁾	Calculated using the estimated interest rate for each lease.

⁽²⁾

As of March 31, 2020 and December 31, 2019 , of the total present value of lease liabilities, $18.5 million and $18.0 million , was recorded in "Current operating lease liabilities", respectively, and $42.3 million and $44.8 million was recorded in "Operating lease liabilities", respectively, on the balance sheets.

Restructuring Costs

3 Months Ended

Mar. 31, 2020

Restructuring and Related Activities [Abstract]

Restructuring and Related Activities Disclosure [Text Block]

In February 2018, QEP's Board of Directors approved certain strategic and financial initiatives. In February 2019, QEP's Board of Directors commenced a comprehensive review of strategic alternatives to maximize shareholder value. In connection with these activities, QEP has incurred various restructuring costs associated with contractual termination benefits including severance, accelerated vesting of share-based compensation and other expenses. The termination benefits are accounted for under ASC 712, Compensation – Nonretirement Postemployment Benefits and ASC 718, Compensation – Stock Compensation .

Restructuring costs recognized are summarized below:



	Total recognized			Recognized in "General and administrative"		Recognized in "Net (gain) loss from asset sales, inclusive of restructuring costs"			Recognized in "Interest and other (income) expense"
	Three Months Ended March 31, 2020
	(in millions)
Termination benefits	$	1.0		$	1.0	$	—		$	—
Accelerated share-based compensation ⁽¹⁾	0.2			0.2		—			—
Retention expense (including share-based compensation)	0.2			0.2		—			—
Total restructuring costs	$	1.4		$	1.4	$	—		$	—

	Three Months Ended March 31, 2019
Termination benefits	$	6.8		$	6.7	$	0.1		—
Office lease termination costs	0.6			0.6		—			—
Accelerated share-based compensation ⁽¹⁾	8.4			6.9		1.5			—
Retention expense (including share-based compensation)	6.1			6.1		—			—
Pension and Medical Plan curtailment	(0.5		)	—		(0.2		)	(0.3		)
Total restructuring costs	$	21.4		$	20.3	$	1.4		$	(0.3	)

____________________________

⁽¹⁾

Accelerated share-based compensation represents the additional expense or loss recognized in the statement of operations for the three months ended March 31, 2020 and 2019 . Total accelerated share-based compensation was $0.6 million and $8.8 million as of March 31, 2020 and 2019 , respectively, and was determined based on the contractual vesting date, with $0.2 million and $8.4 million recognized during the three months ended March 31, 2020 and 2019 , respectively, as shown above, and the remaining amount recognized in prior periods.



	Costs recognized from inception through March 31, 2020 ⁽¹⁾		Total remaining costs expected to be incurred
	(in millions)
Termination benefits	$	45.6	$	—
Office lease termination costs	1.6		—
Accelerated share-based compensation	23.8		—		⁽²⁾
Retention expense (including share-based compensation)	38.5		0.2
Pension and Medical Plan curtailment	1.3		—
Total restructuring costs	$	110.8	$	0.2

____________________________


⁽¹⁾	Represents costs incurred since February 2018 when QEP's Board of Directors approved certain strategic and financial initiatives.


⁽²⁾	Due to the nature of the accelerated share-based compensation, as of March 31, 2020 , the Company is not able to reasonably estimate the total cost to be incurred in connection with these restructurings.

The following table is a reconciliation of QEP's restructuring liability, which is included within "Accounts payable and accrued expenses" on the balance sheets.



	Restructuring liability
	Termination benefits			Office lease termination costs		Accelerated share-based compensation			Retention expense			Pension curtailment		Total
	(in millions)
Balance at December 31, 2019	$	1.2		$	—	$	—		$	6.5		$	—	$	7.7
Costs incurred and charged to expense	1.0			—		0.2			0.2			—		1.4
Costs paid or otherwise settled	(1.0		)	—		(0.2		)	(6.5		)	—		(7.7		)
Balance at March 31, 2020	$	1.2		$	—	$	—		$	0.2		$	—	$	1.4

Debt

3 Months Ended

Mar. 31, 2020

Debt Disclosure [Abstract]

Debt [Text Block]

As of the indicated dates, the principal amount of QEP's debt consisted of the following:



	March 31, 2020			December 31, 2019
	(in millions)
Revolving Credit Facility due 2022	$	—		$	—
6.875% Senior Notes due 2021	332.3			382.4
5.375% Senior Notes due 2022	465.1			500.0
5.25% Senior Notes due 2023	636.8			650.0
5.625% Senior Notes due 2026	500.0			500.0
Less: unamortized discount and unamortized debt issuance costs	(15.2		)	(16.8		)
Total principal amount of debt (including current portion)	1,919.0			2,015.6
Less: current portion of long-term debt	(331.6		)	—
Total long-term debt outstanding	$	1,587.4		$	2,015.6

Of the total debt outstanding on March 31, 2020 , the 6.875% Senior Notes due March 1, 2021 , the 5.375% Senior Notes due October 1, 2022 and the 5.25% Senior Notes due May 1, 2023 , will mature within the next five years . In addition, the revolving credit facility matures on September 1, 2022 .

Credit Facility

QEP's unsecured revolving credit facility, which matures in September 2022, provides for loan commitments of $1.25 billion . The credit facility provides for borrowings at short-term interest rates and contains customary covenants and restrictions. The credit agreement contains financial covenants (that are defined in the credit agreement) that limit the amount of debt the Company can 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 3.75 times consolidated EBITDA (as defined in the credit agreement), and (iii) a present value coverage ratio under which the present value of the Company's proved reserves must exceed net funded debt by 1.50 times at any time on or after January 1, 2020. At March 31, 2020 and December 31, 2019 , QEP was in compliance with the covenants under its credit agreement.

As of March 31, 2020 , and December 31, 2019 , respectively, QEP had no borrowings outstanding and $2.9 million in letters of credit outstanding under the credit facility.

Senior Notes

At March 31, 2020 , the Company had $1,934.2 million in principal amount of senior notes outstanding with maturities ranging from March 1, 2021 to March 1, 2026 , 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 QEP's other existing and future unsecured and senior obligations. QEP may redeem some or 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. During the period ended March 31, 2020 , QEP repurchased principal amounts of $50.1 million of its 6.875% Senior Notes due March 2021, $34.9 million of its 5.375% Senior Notes due October 1, 2022 and $13.2 million of its 5.25% Senior Notes due May 1, 2023. The Company recorded $25.2 million in "Gain from early extinguishment of debt" on the statements of operations associated with the repurchase of Senior Notes during the period ended March 31, 2020 .

Commitment and Contingencies	3 Months Ended
Commitment and Contingencies	Mar. 31, 2020
Commitments and Contingencies Disclosure [Abstract]
Commitment and 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 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. Legal proceedings are inherently unpredictable and unfavorable resolutions can occur. Assessing contingencies is highly subjective and requires judgment 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 potential defenses, the procedural status of the matter in question, the presence of complex legal and/or factual issues and the ongoing discovery and/or development of information important to the matter. Mabee Ranch Royalty Partnership Litigation – In October 2017, the owners of certain surface and mineral interests in Martin and Andrews County, Texas, filed suit against QEP, alleging QEP improperly used the surface of the properties and failed to correctly pay royalties, and seeking monetary damages and a declaratory judgment that portions of the oil and gas leases covering the properties are no longer in effect. The parties have reached a settlement involving no cash consideration and have jointly moved to dismiss the litigation. Mandan, Hidatsa and Arikara Nation ("MHA Nation") Title Dispute – In June 2018, the MHA Nation notified QEP of its position that QEP has no valid lease covering certain minerals underlying the Missouri and Little Missouri Riverbeds on the Fort Berthold Reservation in North Dakota. The MHA Nation also passed a resolution purporting to rescind those portions of QEP's IMDA lease covering the disputed minerals underlying the Missouri River. Overriding Royalty Interest Litigation – In July 2019, owners of small overriding royalty interests in certain wells in the South Antelope oil and gas field in North Dakota filed suit against QEP, alleging QEP has improperly taken deductions for post-production expenses. In many cases, the Company is unable to make an estimate of the range of reasonably possible loss related to its contingencies. To the extent that the Company can reasonably estimate losses for contingencies where the risk of material loss (in excess of accruals, if any) is reasonably possible, the Company estimates such losses to be in a range of zero to approximately $10.0 million , in the aggregate.

Share-Based Compensation

3 Months Ended

Mar. 31, 2020

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Share-Based Compensation [Text Block]

In 2018, QEP's Board of Directors and QEP's shareholders approved the QEP Resources, Inc. 2018 Long-Term Incentive Plan (LTIP), which replaced the 2010 Long-Term Stock Incentive Plan (LTSIP) and provides for the issuance of up to 10.0 million shares such that the Board of Directors may grant long-term incentive compensation. QEP issues restricted share awards, restricted cash awards and restricted share units under its LTSIP or LTIP and awards performance share units under its Cash Incentive Plan (CIP) to certain officers, employees and non-employee directors. Grants issued prior to May 15, 2018 were under the LTSIP and grants issued on or after May 15, 2018 are under the LTIP. QEP recognizes the expense over the vesting periods for stock options, restricted share awards, restricted cash awards, restricted share units and performance share units. There were 3.7 million shares available for future grants under the LTIP at March 31, 2020 .

Share-based compensation expense is generally recognized within "General and administrative" expense on the statements of operations and is summarized in the table below.



	Three Months Ended
	March 31,
	2020 ⁽¹⁾		2019 ⁽²⁾
	(in millions)
Stock options	$	—	$	0.3
Restricted share awards	3.3		6.1
Restricted cash awards	0.2		—
Performance share units	0.4		5.2
Restricted share units	—		0.1
Total share-based compensation expense	$	3.9	$	11.7

________________________


⁽¹⁾	During the three months ended March 31, 2020 , the Company recorded an additional $0.2 million of share-based compensation expense related to the acceleration of vesting that occurred as part of the restructuring program. Refer to Note 9 – Restructuring for additional information.

⁽²⁾

During the three months ended March 31, 2019 , the Company recorded $8.4 million of share-based compensation expense related to the acceleration of vesting that occurred as part of the restructuring program, of which $1.5 million was recorded in "Net gain (loss) from asset sales, inclusive of restructuring costs" on the statement of operations during the three months ended March 31, 2019 and the remaining $6.9 million is included in the table above. Refer to Note 9 – Restructuring for additional information.

Stock Options

During the three months ended March 31, 2020 , QEP did not issue stock options to its employees. In periods when QEP granted stock options, the Company historically used the Black-Scholes-Merton mathematical model to estimate the fair value of stock option awards at the date of 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 calculating the value of options not traded on an exchange. The Company utilized the "simplified" method to estimate the expected term of the stock options granted as there was limited historical exercise data available in estimating the expected term of the stock options. QEP used a historical volatility method to estimate the fair value of stock option awards, and the risk-free interest rate was 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 three years 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 Company recognizes forfeitures of stock options as they occur.

Stock option transactions under the terms of the LTSIP are summarized below:



	Options Outstanding		Weighted-Average Exercise Price		Weighted-Average Remaining Contractual Term	Aggregate Intrinsic Value
			(per share)		(in years)	(in millions)
Outstanding at December 31, 2019	1,802,387		$	20.87
Cancelled	(305,163	)	30.12
Outstanding at March 31, 2020	1,497,224		$	18.98	2.51	$	—
Options Exercisable at March 31, 2020	1,494,157		$	19.00	2.51	$	—
Unvested Options at March 31, 2020	3,067		$	7.52	4.42	$	—

During the three months ended March 31, 2020 there were no exercises of stock options. The Company recognized $1.0 million of income tax expense for the cancellation of options for the three months ended March 31, 2020 , and no income tax expense related to stock options for the three months ended March 31, 2019 . As of March 31, 2020 , there was no unrecognized compensation expense related to stock options granted under the LTSIP. Refer to Note 9 – Restructuring for additional information.

Restricted Share Awards

Restricted share award grants typically vest in equal installments over three years 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 Company recognizes restricted share forfeitures as they occur. The total fair value of restricted share awards that vested during the three months ended March 31, 2020 and 2019 was $10.5 million and $22.8 million , respectively. The Company recognized $1.9 million of income tax expense for shares that were either vested or forfeited during the three months ended March 31, 2020 , and no income tax expense related to restricted shares for the three months ended March 31, 2019 . The weighted-average grant date fair value of restricted share awards was $2.18 per share and $7.98 per share for the three months ended March 31, 2020 and 2019 , respectively. As of March 31, 2020 , $16.4 million of unrecognized compensation expense related to restricted share awards granted under the LTSIP and LTIP is expected to be recognized over a weighted-average vesting period of 2.51 years.

Transactions involving restricted share awards under the terms of the LTSIP and LTIP are summarized below:



	Restricted Share Awards Outstanding		Weighted-Average Grant Date Fair Value
			(per share)
Unvested balance at December 31, 2019	2,845,033		$	8.67
Granted	4,860,052		2.18
Vested	(1,073,255	)	9.76
Forfeited	(12,583	)	8.61
Unvested balance at March 31, 2020	6,619,247		$	3.73

Restricted Cash Awards

Beginning in March 2020, QEP issued restricted cash awards under its LTIP to certain employees. Restricted cash award grants vest in equal installments over three years from the grant date. The Company recognizes restricted cash forfeitures as they occur. There were no restricted cash awards granted or outstanding during the three months ended March 31, 2019 . As of March 31, 2020 , $3.1 million of unrecognized compensation expense related to restricted cash awards granted under the LTIP is expected to be recognized over a weighted-average vesting period of 3.0 years.

Transactions involving restricted cash awards under the terms of the LTIP are summarized below:



	Restricted Cash Awards Outstanding

Unvested balance at December 31, 2019	$	—
Granted	3,216,675
Vested	—
Forfeited	—
Unvested balance at March 31, 2020	$	3,216,675

Performance Share Units

The payouts associated with performance share units under the CIP are dependent upon the Company's total shareholder return compared to a group of its peers over three years . The awards are denominated in share units and have historically been paid in cash. The Company has the option to settle earned awards in cash or shares of common stock under the Company's LTIP; however, as of March 31, 2020 , the Company expects to settle all awards under the CIP in cash. These awards are classified as liabilities and are included within "Other long-term liabilities" on the balance sheets. Because 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 Company paid $10.9 million for vested performance share units during the three months ended March 31, 2019 . The weighted-average grant date fair value of the performance share units granted during the three months ended March 31, 2020 and 2019 was $2.17 and $7.93 per share, respectively. As of March 31, 2020 , $4.9 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 2.53 years. Refer to Note 9 – Restructuring for additional information.

Transactions involving performance share units under the terms of the CIP are summarized below:



	Performance Share Units Outstanding		Weighted-Average Grant Date Fair Value
			(per share)
Unvested balance at December 31, 2019	625,922		$	9.04
Granted	1,926,026		2.17
Vested and paid	(55,186	)	16.37
Unvested balance at March 31, 2020	2,496,762		$	3.65

Restricted Share Units

Employees may elect to defer their grants of restricted share awards and these deferred awards are designated as restricted share units. Restricted share units vest over three years and are deferred into the Company's nonqualified, unfunded deferred compensation plan at the time of grant. These awards are ultimately paid in cash when distributed from the deferred compensation plan. They are classified as liabilities in "Other long-term liabilities" on the balance sheets and are measured at fair value at the end of each reporting period. The weighted-average grant date fair value of the restricted share units was $2.08 and $7.93 per share for the three months ended March 31, 2020 and 2019 , respectively. The Company recognized $0.2 million of income tax expense related to restricted share units for the three months ended March 31, 2020 , and no income tax expense related to restricted share units for the three months ended March 31, 2019 . As of March 31, 2020 , there was less than $0.1 million of unrecognized compensation cost, which represents the unvested portion of the fair market value of restricted share units granted. Refer to Note 9 – Restructuring for additional information.

Transactions involving restricted share units under the terms of the LTSIP and LTIP are summarized below:



	Restricted Share Units Outstanding		Weighted-Average Grant Date Fair Value
			(per share)
Unvested balance at December 31, 2019	34,393		$	8.16
Granted	76,083		2.08
Vested and paid	(26,770	)	8.20
Unvested balance at March 31, 2020	83,706		$	2.62

Subsequent Event (Notes)	3 Months Ended
Subsequent Event (Notes)	Mar. 31, 2020
Subsequent Events [Abstract]
Subsequent Events [Text Block]	On January 30, 2020, the World Health Organization (WHO) announced a global health emergency due to the risks imposed to the international community by a new strain of coronavirus known as COVID-19. In March 2020, the WHO classified the COVID-19 outbreak as a global pandemic. During this time, the crude oil market began to experience a decline in oil prices in response to concerns about oil demand due to the global economic impacts of COVID-19. In addition, policy disputes in the first quarter of 2020 between OPEC and Russia resulted in Saudi Arabia significantly discounting the price of its crude oil, as well as Saudi Arabia and Russia significantly increasing their oil supply. These actions have led to significant weakness in oil prices that have continued to decline subsequent to March 31, 2020 and caused concern for the outlook on crude oil prices for 2020 and beyond. The Company is not able to reasonably estimate the future costs, total magnitude and duration of potential social, economic and labor instability as a direct result of COVID-19 at this time. Should any of these potential impacts continue for an extended period of time, it will have a negative impact on the demand for our oil and natural gas products and an adverse effect on our financial position and results of operations. In addition, a decline in oil and gas prices and additional volatility in future pricing could negatively impact our ability to execute our operating and development plans and our ability to generate operating cash flows. To the extent the COVID-19 pandemic adversely affects our business and financial results, it may also have the effect of heightening many of the other risks, such as those relating to our indebtedness, our need to generate sufficient cash flows to service our indebtedness and our ability to comply with the covenants contained in the agreements that govern our indebtedness.

Basis of Presentation Restricted Cash (Tables)

3 Months Ended

Mar. 31, 2020

Restricted Cash [Abstract]

Restrictions on Cash and Cash Equivalents [Table Text Block]

The following table provides a reconciliation of cash, cash equivalents and restricted cash reported within the balance sheets to the amounts shown in the statements of cash flows:



	March 31,
	2020		2019
	(in millions)
Cash and cash equivalents	$	70.3	$	89.9
Restricted cash ⁽¹⁾	30.6		28.6
Total cash, cash equivalents and restricted cash shown in the statements of cash flows	$	100.9	$	118.5

_______________________

- Definition

Tabular disclosure of cash and cash equivalents restricted as to withdrawal or usage.

+ References + Details

Revenue (Tables)

3 Months Ended

Mar. 31, 2020

Revenue Recognition [Abstract]

Revenue Recognition [Table Text Block]



	Oil and condensate sales		Gas sales		NGL sales		Transportation and processing costs included in revenue			Oil and condensate, gas and NGL sales, as reported
	(in millions)
	Three Months Ended March 31, 2020
Northern Region
Williston Basin	$	79.2	$	4.6	$	3.5	$	(9.3	)	$	78.0
Other Northern	0.1		0.1		—		—			0.2
Southern Region
Permian Basin	140.7		1.8		6.1		(5.0		)	143.6
Other Southern	—		—		—		—			—
Total oil and condensate, gas and NGL sales	$	220.0	$	6.5	$	9.6	$	(14.3	)	$	221.8

	Three Months Ended March 31, 2019
Northern Region
Williston Basin	$	109.9	$	12.5	$	7.4	$	(10.1	)	$	119.7
Other Northern	0.4		0.2		—		—			0.6
Southern Region
Permian Basin	139.2		4.6		9.5		(3.7		)	149.6
Other Southern	—		5.7		—		—			5.7
Total oil and condensate, gas and NGL sales	$	249.5	$	23.0	$	16.9	$	(13.8	)	$	275.6

Earnings Per Share (Tables)

3 Months Ended

Mar. 31, 2020

Earnings Per Share [Abstract]

Components of basic and diluted shares used in EPS [Table Text Block]

The following is a reconciliation of the components of basic and diluted shares used in the EPS calculation:



	Three Months Ended
	March 31,
	2020	2019
	(in millions)
Weighted-average basic common shares outstanding	239.1	237.1
Potential number of shares issuable upon exercise of in-the-money stock options under the Long-Term Stock Incentive Plan	—	—
Average diluted common shares outstanding	239.1	237.1

Asset Retirement Obligations (Tables)

3 Months Ended

Mar. 31, 2020

Asset Retirement Obligation [Abstract]

Asset Retirement Obligation Disclosure [Text Block]



	Asset Retirement Obligations
	March 31,		December 31,
	2020		2019
Balance Sheet line item	(in millions)
Current:
Asset retirement obligations, current liability	$	6.5	$	6.0
Long-term:
Asset retirement obligations	93.7		94.9
Total ARO Liability	$	100.2	$	100.9

Schedule of Change in Asset Retirement Obligation [Table Text Block]

The following is a reconciliation of the changes in the Company's ARO for the period specified below:



	Asset Retirement Obligations
	(in millions)
ARO liability at January 1, 2020	$	100.9
Accretion	0.9
Additions	0.6
Revisions	(0.5		)
Liabilities related to assets sold	(1.3		)
Liabilities settled	(0.4		)
ARO liability at March 31, 2020	$	100.2

^[1]

[1]	Text selection found with no content.

Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2020

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 March 31, 2020 and December 31, 2019 , is shown in the table below:



	Fair Value Measurements
	Gross Amounts of Assets and Liabilities						Netting Adjustments ⁽¹⁾			Net Amounts Presented on the Condensed Consolidated Balance Sheets
	Level 1		Level 2		Level 3		Netting Adjustments ⁽¹⁾
	(in millions)
Financial Assets	March 31, 2020
Fair value of derivative contracts – short-term	$	—	$	375.4	$	—	$	(4.8	)	$	370.6
Fair value of derivative contracts – long-term	—		21.2		—		(2.1		)	19.1
Fair value of marketable securities	20.6		—		—		—			20.6
Total financial assets	$	20.6	$	396.6	$	—	$	(6.9	)	$	410.3

Financial Liabilities
Fair value of derivative contracts – short-term	$	—	$	4.8	$	—	$	(4.8	)	$	—
Fair value of derivative contracts – long-term	—		2.1		—		(2.1		)	—
Fair value of Wrap Plan obligations	21.0		—		—		—			21.0
Total financial liabilities	$	21.0	$	6.9	$	—	$	(6.9	)	$	21.0

	December 31, 2019
Financial Assets
Fair value of derivative contracts – short-term	$	—	$	1.5	$	—	$	—		$	1.5
Fair value of derivative contracts – long-term	—		0.2		—		—			0.2
Fair value of marketable securities	23.1		—		—		—			23.1
Total financial assets	$	23.1	$	1.7	$	—	$	—		$	24.8

Financial Liabilities
Fair value of derivative contracts – short-term	$	—	$	18.7	$	—	$	—		$	18.7
Fair value of derivative contracts – long-term	—		0.5		—		—			0.5
Fair value of Wrap Plan obligations	26.8		—		—		—			26.8
Total financial liabilities	$	26.8	$	19.2	$	—	$	—		$	46.0

_______________________

⁽¹⁾

The Company nets its derivative contract assets and liabilities outstanding with the same counterparty on the balance sheets for the contracts that contain netting provisions. Refer to Note 7 – Derivative Contracts for additional information regarding the Company's derivative contracts.

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 to the financial statements:



	Carrying Amount		Level 1 Fair Value		Carrying Amount		Level 1 Fair Value
	March 31, 2020				December 31, 2019
Financial Liabilities	(in millions)
Total debt outstanding	$	1,919.0	$	806.2	$	2,015.6	$	2,029.4

- 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.

+ References

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-Name Accounting Standards Codification
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+ Details

- 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.

+ References + Details

Derivative Contracts (Tables)

3 Months Ended

Mar. 31, 2020

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of Notional Amounts of Outstanding Derivative Positions [Table Text Block]

Derivative Contracts – Production

The following table presents QEP's volumes and average prices for its commodity derivative swap contracts as of March 31, 2020 :



Year	Index	Total Volumes	Average Swap Price per Unit
		(in millions)
Oil sales		(bbls)	($/bbl)
2020	NYMEX WTI	11.0	$	57.75
2020	Argus WTI Midland	1.1	$	57.30
2020	Argus WTI Houston	0.5	$	60.06
2021	NYMEX WTI	1.6	$	55.04
Gas sales		(MMbtu)	($/MMbtu)
2020	IF Waha ⁽¹⁾	8.3	$	0.63
2020	NYMEX HH	5.5	$	2.11
2021	IF Waha ⁽¹⁾	7.3	$	1.47
2021	NYMEX HH	7.3	$	2.38

_______________________


⁽¹⁾	IF Waha Index pricing reported in Platts' Inside FERC's Gas Market Report, reflecting the weighted average price of Natural Gas transactions at the Waha Hub in west Texas on the first day of the month.



Year	Index	Basis	Total Volumes	Weighted-Average Differential
			(in millions)
Oil sales			(bbls)	($/bbl)
2020	NYMEX WTI	Argus WTI Midland	5.2	$	0.20
2020	NYMEX WTI	Argus WTI Houston	0.2	$	3.75
2021	NYMEX WTI	Argus WTI Midland	4.4	$	0.99

Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block]

Derivative Instruments, Gain (Loss) [Table Text Block]



	Three Months Ended
Derivative contracts	March 31,
Derivative contracts	2020			2019
Realized gains (losses) on commodity derivative contracts	(in millions)
Production
Oil derivative contracts	$	42.6		$	(3.0	)
Gas derivative contracts	—			(2.9		)
Realized gains (losses) on commodity derivative contracts	42.6			(5.9		)
Unrealized gains (losses) on commodity derivative contracts
Production
Oil derivative contracts	413.9			(177.3		)
Gas derivative contracts	(6.6		)	(0.3		)
Unrealized gains (losses) on commodity derivative contracts	407.3			(177.6		)
Total realized and unrealized gains (losses) on commodity derivative contracts related to production	$	449.9		$	(183.5	)

Derivatives associated with Haynesville Divestiture
Unrealized gains (losses) on commodity derivative contracts
Production
Gas derivative contracts	—			1.8
Unrealized gains (losses) on commodity derivative contracts related to divestitures ⁽¹⁾	$	—		$	1.8

Total realized and unrealized gains (losses) on commodity derivative contracts	$	449.9		$	(181.7	)

_______________________

⁽¹⁾

- 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.

+ References + Details

Leases (Tables)

3 Months Ended

Mar. 31, 2020

Leases [Abstract]

Lease, Cost [Table Text Block]

Lease costs represent the straight-line lease expense of ROU assets and short-term leases. The components of lease cost are classified as follows:



	Three Months Ended		Three Months Ended
	March 31, 2020		March 31, 2019
Lease Cost included in the Condensed Consolidated Balance Sheets	(in millions)
Property, Plant and Equipment acquisitions ⁽¹⁾	$	4.4	$	4.7

	Three Months Ended		Three Months Ended
	March 31, 2020		March 31, 2019
Lease Cost included in the Condensed Consolidated Statement of Operations	(in millions)
Lease operating expense	$	2.5	$	3.1
Gathering and other expense	1.9		1.5
General and administrative	1.5		1.6

Total lease cost	$	10.3	$	10.9

____________________________


⁽¹⁾	Represents short-term lease capital expenditures related to drilling rigs for the three months ended March 31, 2020 and 2019 . These costs are capitalized as a part of "Proved properties" on the balance sheets.

Lessee, Operating Leases [Text Block]

Lease term and discount rate related to the Company's leases are as follows:



	Three Months Ended		Three Months Ended
	March 31, 2020		March 31, 2019
Weighted-average remaining lease term (years)	4.3		3.8
Weighted-average discount rate	7.5	%	8.1	%

Lessee, Operating Lease, Liability, Maturity [Table Text Block]



	March 31, 2020			December 31, 2019
Year	(in millions)
2020	$	17.0		$	22.3
2021	21.1			20.4
2022	16.3			15.9
2023	11.0			10.6
2024	1.7			1.4
After 2024	2.5			2.4
Less: Interest ⁽¹⁾	(8.8		)	(10.2		)
Present value of lease liabilities ⁽²⁾	$	60.8		$	62.8

Restructuring Costs Restructuring Costs (Tables)

3 Months Ended

Mar. 31, 2020

Restructuring and Related Activities [Abstract]

Schedule of Restructuring Reserve by Type of Cost [Table Text Block]

Restructuring costs recognized are summarized below:



	Total recognized			Recognized in "General and administrative"		Recognized in "Net (gain) loss from asset sales, inclusive of restructuring costs"			Recognized in "Interest and other (income) expense"
	Three Months Ended March 31, 2020
	(in millions)
Termination benefits	$	1.0		$	1.0	$	—		$	—
Accelerated share-based compensation ⁽¹⁾	0.2			0.2		—			—
Retention expense (including share-based compensation)	0.2			0.2		—			—
Total restructuring costs	$	1.4		$	1.4	$	—		$	—

	Three Months Ended March 31, 2019
Termination benefits	$	6.8		$	6.7	$	0.1		—
Office lease termination costs	0.6			0.6		—			—
Accelerated share-based compensation ⁽¹⁾	8.4			6.9		1.5			—
Retention expense (including share-based compensation)	6.1			6.1		—			—
Pension and Medical Plan curtailment	(0.5		)	—		(0.2		)	(0.3		)
Total restructuring costs	$	21.4		$	20.3	$	1.4		$	(0.3	)

Restructuring Costs [Table Text Block]



	Costs recognized from inception through March 31, 2020 ⁽¹⁾		Total remaining costs expected to be incurred
	(in millions)
Termination benefits	$	45.6	$	—
Office lease termination costs	1.6		—
Accelerated share-based compensation	23.8		—		⁽²⁾
Retention expense (including share-based compensation)	38.5		0.2
Pension and Medical Plan curtailment	1.3		—
Total restructuring costs	$	110.8	$	0.2

____________________________


⁽¹⁾	Represents costs incurred since February 2018 when QEP's Board of Directors approved certain strategic and financial initiatives.


⁽²⁾	Due to the nature of the accelerated share-based compensation, as of March 31, 2020 , the Company is not able to reasonably estimate the total cost to be incurred in connection with these restructurings.

Restructuring Costs, Liability [Table Text Block]

The following table is a reconciliation of QEP's restructuring liability, which is included within "Accounts payable and accrued expenses" on the balance sheets.



	Restructuring liability
	Termination benefits			Office lease termination costs		Accelerated share-based compensation			Retention expense			Pension curtailment		Total
	(in millions)
Balance at December 31, 2019	$	1.2		$	—	$	—		$	6.5		$	—	$	7.7
Costs incurred and charged to expense	1.0			—		0.2			0.2			—		1.4
Costs paid or otherwise settled	(1.0		)	—		(0.2		)	(6.5		)	—		(7.7		)
Balance at March 31, 2020	$	1.2		$	—	$	—		$	0.2		$	—	$	1.4

- Definition

Tabular disclosure of costs incurred for restructuring including, but not limited to, exit and disposal activities, remediation, implementation, integration, asset impairment, and charges against earnings from the write-down of assets.

+ References + Details

- Definition

Tabular disclosure of an entity's restructuring reserve that occurred during the period associated with the exit from or disposal of business activities or restructurings for each major type of cost. This element may also include a description of any reversal and other adjustment made during the period to the amount of an accrued liability for restructuring activities. This element may be used to encapsulate the roll forward presentations of an entity's restructuring reserve by type of cost and in total, and explanation of changes that occurred in the period.

+ References + Details

Debt (Tables)

3 Months Ended

Mar. 31, 2020

Debt Disclosure [Abstract]

Debt Outstanding [Table Text Block]

As of the indicated dates, the principal amount of QEP's debt consisted of the following:



	March 31, 2020			December 31, 2019
	(in millions)
Revolving Credit Facility due 2022	$	—		$	—
6.875% Senior Notes due 2021	332.3			382.4
5.375% Senior Notes due 2022	465.1			500.0
5.25% Senior Notes due 2023	636.8			650.0
5.625% Senior Notes due 2026	500.0			500.0
Less: unamortized discount and unamortized debt issuance costs	(15.2		)	(16.8		)
Total principal amount of debt (including current portion)	1,919.0			2,015.6
Less: current portion of long-term debt	(331.6		)	—
Total long-term debt outstanding	$	1,587.4		$	2,015.6

Share-Based Compensation (Tables)

3 Months Ended

Mar. 31, 2020

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Share-based Compensation Expense [Table Text Block]

Share-based compensation expense is generally recognized within "General and administrative" expense on the statements of operations and is summarized in the table below.



	Three Months Ended
	March 31,
	2020 ⁽¹⁾		2019 ⁽²⁾
	(in millions)
Stock options	$	—	$	0.3
Restricted share awards	3.3		6.1
Restricted cash awards	0.2		—
Performance share units	0.4		5.2
Restricted share units	—		0.1
Total share-based compensation expense	$	3.9	$	11.7

________________________


⁽¹⁾	During the three months ended March 31, 2020 , the Company recorded an additional $0.2 million of share-based compensation expense related to the acceleration of vesting that occurred as part of the restructuring program. Refer to Note 9 – Restructuring for additional information.

⁽²⁾

Share-based Compensation, Stock Options, Activity [Table Text Block]

Stock option transactions under the terms of the LTSIP are summarized below:



	Options Outstanding		Weighted-Average Exercise Price		Weighted-Average Remaining Contractual Term	Aggregate Intrinsic Value
			(per share)		(in years)	(in millions)
Outstanding at December 31, 2019	1,802,387		$	20.87
Cancelled	(305,163	)	30.12
Outstanding at March 31, 2020	1,497,224		$	18.98	2.51	$	—
Options Exercisable at March 31, 2020	1,494,157		$	19.00	2.51	$	—
Unvested Options at March 31, 2020	3,067		$	7.52	4.42	$	—

Schedule Of Long Term Incentive Based Compensation Restricted Cash Awards [Table Text Block]



	Restricted Cash Awards Outstanding

Unvested balance at December 31, 2019	$	—
Granted	3,216,675
Vested	—
Forfeited	—
Unvested balance at March 31, 2020	$	3,216,675

Schedule of Other Share-based Compensation, PSUs & RSUs [Table Text Block]

Transactions involving performance share units under the terms of the CIP are summarized below:



	Performance Share Units Outstanding		Weighted-Average Grant Date Fair Value
			(per share)
Unvested balance at December 31, 2019	625,922		$	9.04
Granted	1,926,026		2.17
Vested and paid	(55,186	)	16.37
Unvested balance at March 31, 2020	2,496,762		$	3.65

Schedule of Share-based Compensation, Restricted Share Awards Activity [Table Text Block]

Transactions involving restricted share awards under the terms of the LTSIP and LTIP are summarized below:



	Restricted Share Awards Outstanding		Weighted-Average Grant Date Fair Value
			(per share)
Unvested balance at December 31, 2019	2,845,033		$	8.67
Granted	4,860,052		2.18
Vested	(1,073,255	)	9.76
Forfeited	(12,583	)	8.61
Unvested balance at March 31, 2020	6,619,247		$	3.73

Transactions involving restricted share units under the terms of the LTSIP and LTIP are summarized below:



	Restricted Share Units Outstanding		Weighted-Average Grant Date Fair Value
			(per share)
Unvested balance at December 31, 2019	34,393		$	8.16
Granted	76,083		2.08
Vested and paid	(26,770	)	8.20
Unvested balance at March 31, 2020	83,706		$	2.62

- Definition

Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value.

+ References + Details

Basis of Presentation Income Tax (Details) - USD ($) $ in Millions	3 Months Ended			12 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent			21.00%		35.00%
Proceeds from Income Tax Refunds				$ 73.9
Income tax receivable	$ 165.6
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent	15.30%	49.00%

- Definition

Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

+ References + Details

- Definition

Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations applicable to state and local income tax expense (benefit), net of federal tax expense (benefit).

+ References + Details

Basis of Presentation Restricted Cash (Details) - USD ($)
$ in Millions

Mar. 31, 2020

Dec. 31, 2019

Mar. 31, 2019

Dec. 31, 2018

Restricted Cash and Cash Equivalents Items [Line Items]

Cash and cash equivalents

$ 70.3

$ 166.3

$ 89.9

Restricted cash(1)

^[1]

30.6

28.6

Total cash, cash equivalents and restricted cash shown in the statements of cash flows

$ 100.9

$ 196.4

$ 118.5

$ 28.1

[1]	As of March 31, 2020 and 2019 , the restricted cash balance is cash held in an escrow account related to a title dispute between outside parties in the Williston Basin. The restricted cash balance is recorded within "Other noncurrent assets" on the balance sheets.

- 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.

+ References + Details

- Definition

Amount of cash and cash equivalents restricted as to withdrawal or usage. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, 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.

+ References

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+ Details

Basis of Presentation Impairment of Real Estate (Details) $ in Millions	3 Months Ended
	Mar. 31, 2019 USD ($)
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Impairment of Real Estate	$ 5.0

Basis of Presentation Employee Benefits (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Dec. 31, 2019
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Plan Assets, Contributions by Employer	$ 9.0
Defined Benefit Plan, Expected Future Employer Contributions, Remainder of Fiscal Year	3.7
WRAP Plan Liabilities	21.0	$ 26.8
WRAP Plan Investments	20.6	$ 23.1
Pension Plan [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Plan Assets, Contributions by Employer	2.0
Defined Benefit Plan, Expected Future Employer Contributions, Remainder of Fiscal Year	2.0
SERP [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Plan Assets, Contributions by Employer	7.0
Defined Benefit Plan, Expected Future Employer Contributions, Remainder of Fiscal Year	1.5
Medical Plan [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Expected Future Employer Contributions, Remainder of Fiscal Year	$ 0.2

- Definition

Amount of contribution received by defined benefit plan from employer which increases plan assets.

+ References

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+ Details

Revenue Disaggregated Revenue (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
As reported [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 221.8	$ 275.6
Williston Basin [Member] \| As reported [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	78.0	119.7
Other Northern [Member] \| As reported [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0.2	0.6
Permian Basin [Member] \| As reported [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	143.6	149.6
Other Southern [Member] \| As reported [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0.0	5.7
Oil and Condensate [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	220.0	249.5
Oil and Condensate [Member] \| Williston Basin [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	79.2	109.9
Oil and Condensate [Member] \| Other Northern [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0.1	0.4
Oil and Condensate [Member] \| Permian Basin [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	140.7	139.2
Oil and Condensate [Member] \| Other Southern [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0.0	0.0
Natural Gas [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	6.5	23.0
Natural Gas [Member] \| Williston Basin [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	4.6	12.5
Natural Gas [Member] \| Other Northern [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0.1	0.2
Natural Gas [Member] \| Permian Basin [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	1.8	4.6
Natural Gas [Member] \| Other Southern [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0.0	5.7
Natural Gas Liquids [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	9.6	16.9
Natural Gas Liquids [Member] \| Williston Basin [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	3.5	7.4
Natural Gas Liquids [Member] \| Other Northern [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0.0	0.0
Natural Gas Liquids [Member] \| Permian Basin [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	6.1	9.5
Natural Gas Liquids [Member] \| Other Southern [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0.0	0.0
Natural Gas, Gathering, Transportation, Marketing and Processing [Member]
Disaggregation of Revenue [Line Items]
Cost of Goods and Services Sold	(14.3)	(13.8)
Natural Gas, Gathering, Transportation, Marketing and Processing [Member] \| Williston Basin [Member]
Disaggregation of Revenue [Line Items]
Cost of Goods and Services Sold	(9.3)	(10.1)
Natural Gas, Gathering, Transportation, Marketing and Processing [Member] \| Other Northern [Member]
Disaggregation of Revenue [Line Items]
Cost of Goods and Services Sold	0.0	0.0
Natural Gas, Gathering, Transportation, Marketing and Processing [Member] \| Permian Basin [Member]
Disaggregation of Revenue [Line Items]
Cost of Goods and Services Sold	(5.0)	(3.7)
Natural Gas, Gathering, Transportation, Marketing and Processing [Member] \| Other Southern [Member]
Disaggregation of Revenue [Line Items]
Cost of Goods and Services Sold	$ 0.0	$ 0.0

Acquisitions & Divestitures Acquisitions (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Business Acquisition [Line Items]
Proceeds from Sale of Oil and Gas Property and Equipment	$ 12.6	$ 617.4
Payments to acquire oil and gas property	$ 3.0	$ 0.6

Acquisitions & Divestitures Divestitures (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from Sale of Oil and Gas Property and Equipment	$ 12.6	$ 617.4
Gain (Loss) on Disposition of Oil and Gas Property	$ 3.7	(13.2)
Non-core properties Divestitures [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from Sale of Oil and Gas Property and Equipment		2.1
Gain (Loss) on Disposition of Oil and Gas Property		$ (0.4)

Acquisitions & Divestitures Haynesville/Cotton Valley Divestiture (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from Sale of Oil and Gas Property and Equipment	$ 12.6	$ 617.4
Gain (Loss) on Disposition of Oil and Gas Property	$ 3.7	(13.2)
Haynesville Divestiture [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from Sale of Oil and Gas Property and Equipment			$ 633.9
Gain (Loss) on Disposition of Oil and Gas Property		(15.0)	$ (4.0)
Results of Operations, Loss before Income Taxes		$ (11.1)

Earnings Per Share Components of Basic and Diluted Shares Used In EPS Calculation (Details) - shares shares in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive shares	0.0	0.0
Weighted-average basic common shares outstanding	239.1	237.1
Potential number of shares issuable upon exercise of in-the-money stock options under the Long-Term Stock Incentive Plan	0.0	0.0
Average diluted common shares outstanding	239.1	237.1

- 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.

+ References + Details

- 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.

+ References + Details

Asset Retirement Obligations Consolidated Balance Sheet Line Items of ARO Liability (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019	Jan. 01, 2019
Asset Retirement Obligation Disclosure [Abstract]
Asset retirement obligations, current liability	$ 6.5	$ 6.0
Asset retirement obligations	93.7	94.9
Total ARO Liability	$ 100.2	$ 100.9	$ 100.9

Asset Retirement Obligations Asset Retirement Obligations ARO Rollforward (Details) $ in Millions	3 Months Ended
	Mar. 31, 2020 USD ($)
Divestitures [Line Items]
ARO liability at January 1, 2020	$ 100.9
Accretion	0.9
Additions	0.6
Revisions	(0.5)
Liabilities related to assets sold	(1.3)
Liabilities settled	(0.4)
ARO Liability at March 31, 2020	$ 100.2

- 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.

+ References + Details

- Definition

Amount of increase (decrease) in the asset retirement obligation from changes in the amount or timing of the estimated cash flows associated with the settlement of the obligation.

+ References + Details

Fair Value Measurements Narrative (Details) $ in Millions	3 Months Ended
Fair Value Measurements Narrative (Details) $ in Millions	Mar. 31, 2019 USD ($)
Fair Value Disclosures [Abstract]
Impairment of Real Estate	$ 5.0

Fair Value Measurements Fair Value of Financial Assets and Liabilities (Details) - USD ($)
$ in Millions

Mar. 31, 2020

Dec. 31, 2019

Financial Assets

Derivative Asset, Netting Adjustments

^[1]

$ (6.9)

$ 0.0

Assets, Fair Value Disclosure

410.3

24.8

Financial liabilities

Derivative Liability, Netting Adjustments

^[1]

(6.9)

0.0

Financial Liabilities Fair Value Disclosure

21.0

46.0

Level 1 [Member]

Financial Assets

Assets, Fair Value Disclosure

20.6

23.1

Financial liabilities

Financial Liabilities Fair Value Disclosure

21.0

26.8

Fair Value, Inputs, Level 2 [Member]

Financial Assets

Assets, Fair Value Disclosure

396.6

1.7

Financial liabilities

Financial Liabilities Fair Value Disclosure

6.9

19.2

Level 3 [Member]

Financial Assets

Assets, Fair Value Disclosure

0.0

Financial liabilities

Financial Liabilities Fair Value Disclosure

0.0

Long-term [Member]

Financial Assets

Derivative Asset, Netting Adjustments

^[1]

(2.1)

0.0

Investments, Fair Value Disclosure

20.6

23.1

Derivative Asset, Net

19.1

0.2

Financial liabilities

Derivative Liability, Netting Adjustments

^[1]

(2.1)

0.0

Fair value of deferred compensation liabilities - long-term

21.0

26.8

Derivative Liability, Net

0.0

0.5

Long-term [Member] | Level 1 [Member]

Financial Assets

Derivative Asset, Fair Value, Gross

0.0

Financial liabilities

Derivative Liability, Fair Value, Gross

0.0

Long-term [Member] | Fair Value, Inputs, Level 2 [Member]

Financial Assets

Derivative Asset, Fair Value, Gross

21.2

0.2

Financial liabilities

Derivative Liability, Fair Value, Gross

2.1

0.5

Long-term [Member] | Level 3 [Member]

Financial Assets

Derivative Asset, Fair Value, Gross

0.0

Financial liabilities

Derivative Liability, Fair Value, Gross

0.0

Short-term [Member]

Financial Assets

Derivative Asset, Netting Adjustments

^[1]

(4.8)

0.0

Derivative Asset, Net

370.6

1.5

Financial liabilities

Derivative Liability, Netting Adjustments

^[1]

(4.8)

0.0

Derivative Liability, Net

0.0

18.7

Short-term [Member] | Level 1 [Member]

Financial Assets

Derivative Asset, Fair Value, Gross

0.0

Financial liabilities

Derivative Liability, Fair Value, Gross

0.0

Short-term [Member] | Fair Value, Inputs, Level 2 [Member]

Financial Assets

Derivative Asset, Fair Value, Gross

375.4

1.5

Financial liabilities

Derivative Liability, Fair Value, Gross

4.8

18.7

Short-term [Member] | Level 3 [Member]

Financial Assets

Derivative Asset, Fair Value, Gross

0.0

Financial liabilities

Derivative Liability, Fair Value, Gross

$ 0.0

[1]	The Company nets its derivative contract assets and liabilities outstanding with the same counterparty on the balance sheets for the contracts that contain netting provisions. Refer to Note 7 – Derivative Contracts for additional information regarding the Company's derivative contracts.

Fair Value Measurements Fair Value and Related Carrying Amount of Certain Financial Instruments (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Estimate of Fair Value Measurement [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, fair value	$ 806.2	$ 2,029.4

Derivative Contracts (Narrative) (Details)	3 Months Ended
Derivative Contracts (Narrative) (Details)	Mar. 31, 2020
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%

Derivative Contracts Schedule Of Commodity Derivative Contracts (Details) MMBTU in Millions	3 Months Ended
	Mar. 31, 2020 USD ($) MMBTU $ / MMBTU
Oil Swaps [Member] \| Year 2020 [Member] \| NYMEX WTI [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount	11.0
Average Swap Price per Unit \| $	$ 57.75
Oil Swaps [Member] \| Year 2020 [Member] \| Argus WTI Midland [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount	1.1
Average Swap Price per Unit \| $	$ 57.30
Oil Swaps [Member] \| Year 2020 [Member] \| Argus WTI Houston [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount	0.5
Average Swap Price per Unit \| $	$ 60.06
Oil Swaps [Member] \| Year2021 [Member] \| NYMEX WTI [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount	1.6
Average Swap Price per Unit \| $	$ 55.04
Oil Basis Swaps [Member] \| Year 2020 [Member] \| NYMEX WTI less Argus WTI Midland [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount	5.2
Weighted-Average Differential \| $ / MMBTU	0.20
Oil Basis Swaps [Member] \| Year 2020 [Member] \| NYMEX WTI less Argus WTI Houston [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount	0.2
Weighted-Average Differential \| $ / MMBTU	3.75
Oil Basis Swaps [Member] \| Year2021 [Member] \| NYMEX WTI less Argus WTI Midland [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount	4.4
Weighted-Average Differential \| $ / MMBTU	0.99
Gas Swaps [Member] \| Year 2020 [Member] \| IF Waha [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount	8.3
Average Swap Price per Unit \| $	$ 0.63
Gas Swaps [Member] \| Year 2020 [Member] \| NYMEX HH [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount	5.5
Average Swap Price per Unit \| $	$ 2.11
Gas Swaps [Member] \| Year2021 [Member] \| IF Waha [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount	7.3
Average Swap Price per Unit \| $	$ 1.47
Gas Swaps [Member] \| Year2021 [Member] \| NYMEX HH [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount	7.3
Average Swap Price per Unit \| $	$ 2.38

Derivative Contracts Gain (Loss) in Statement of Financial Performance (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Derivative [Line Items]
Realized gain (loss) on commodity derivative contracts not designated as hedging instruments	$ 42.6	$ (5.9)
Unrealized gain (loss) on commodity derivative contracts not designated as hedging instruments	407.3	(177.6)
Realized and Unrealized Gain (Loss) on Commodity Derivative Contracts Not Designated as Hedging Instruments	449.9	(183.5)
Gain (Loss) on Derivative Instruments, Net, Pretax	449.9	(181.7)
Production [Member] \| Oil derivative contracts [Member]
Derivative [Line Items]
Realized gain (loss) on commodity derivative contracts not designated as hedging instruments	42.6	(3.0)
Unrealized gain (loss) on commodity derivative contracts not designated as hedging instruments	413.9	(177.3)
Production [Member] \| Gas derivative contracts [Member]
Derivative [Line Items]
Realized gain (loss) on commodity derivative contracts not designated as hedging instruments	0.0	(2.9)
Unrealized gain (loss) on commodity derivative contracts not designated as hedging instruments	(6.6)	(0.3)
Haynesville Divestiture [Member]
Derivative [Line Items]
Unrealized gain (loss) on commodity derivative contracts not designated as hedging instruments	0.0	1.8
Haynesville Divestiture [Member] \| Production [Member] \| Gas derivative contracts [Member]
Derivative [Line Items]
Unrealized gain (loss) on commodity derivative contracts not designated as hedging instruments	$ 0.0	$ 1.8

Leases Lease Cost (Details) - USD ($) $ in Millions	3 Months Ended
Leases Lease Cost (Details) - USD ($) $ in Millions	Mar. 31, 2020	Mar. 31, 2019
Lessor, Lease, Description [Line Items]
Lease, Cost	$ 10.3	$ 10.9
Operating Lease, Weighted Average Remaining Lease Term	4 years 3 months 18 days	3 years 9 months 18 days
Operating Lease, Weighted Average Discount Rate, Percent	7.50%	8.10%
Property, Plant and Equipment [Member]
Lessor, Lease, Description [Line Items]
Lease, Cost	$ 4.4	$ 4.7
Lease Operating Expense [Member]
Lessor, Lease, Description [Line Items]
Lease, Cost	2.5	3.1
Gathering and other expense [Member]
Lessor, Lease, Description [Line Items]
Lease, Cost	1.9	1.5
General and Administrative Expense [Member]
Lessor, Lease, Description [Line Items]
Lease, Cost	$ 1.5	$ 1.6

- Definition

Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References + Details

Leases Operating Lease Maturity Table (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Leases [Abstract]
Lessee, Operating Lease, Liability, Payments, Due Next Twelve Months	$ 17.0	$ 22.3
Lessee, Operating Lease, Liability, Payments, Due Year Two	21.1	20.4
Lessee, Operating Lease, Liability, Payments, Due Year Three	16.3	15.9
Lessee, Operating Lease, Liability, Payments, Due Year Four	11.0	10.6
Lessee, Operating Lease, Liability, Payments, Due Year Five	1.7	1.4
Lessee, Operating Lease, Liability, Payments, Due after Year Five	2.5	2.4
Operating Leases, Undiscounted Interest	(8.8)	(10.2)
Lessee, Operating Lease, Liability, Payments, Due	60.8	62.8
Current operating lease lease liabilities	18.5	18.0
Operating lease liabilities	$ 42.3	$ 44.8

Restructuring Costs Costs Recognized and Remaining Costs Expected To Be Incurred (Details) $ in Millions	3 Months Ended
	Mar. 31, 2020 USD ($)
Restructuring Cost and Reserve [Line Items]
Termination benefits	$ 110.8
Restructuring Costs, Expected Costs	0.2
One-time Termination Benefits [Member]
Restructuring Cost and Reserve [Line Items]
Termination benefits	45.6
Restructuring Costs, Expected Costs	0.0
Lease Termination Costs [Member]
Restructuring Cost and Reserve [Line Items]
Termination benefits	1.6
Restructuring Costs, Expected Costs	0.0
Accelerated Share Based Compensation [Member]
Restructuring Cost and Reserve [Line Items]
Termination benefits	23.8
Restructuring Costs, Expected Costs	0.0
Retention Expense [Member]
Restructuring Cost and Reserve [Line Items]
Termination benefits	38.5
Restructuring Costs, Expected Costs	0.2
Pension curtailment [Member]
Restructuring Cost and Reserve [Line Items]
Termination benefits	1.3
Restructuring Costs, Expected Costs	$ 0.0

- Definition

Amount of costs incurred to date for the specified restructuring cost.

+ References + Details

Restructuring Costs Restructuring Liability (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Dec. 31, 2019
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	$ 1.4	$ 7.7
Restructuring and Related Cost, Incurred Cost	1.4
Restructuring Costs, Paid or Settled	(7.7)
Restructuring Reserve	1.4
One-time Termination Benefits [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	1.2	1.2
Restructuring and Related Cost, Incurred Cost	1.0
Restructuring Costs, Paid or Settled	(1.0)
Restructuring Reserve	1.2
Lease Termination Costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	0.0	0.0
Restructuring and Related Cost, Incurred Cost	0.0
Restructuring Costs, Paid or Settled	0.0
Restructuring Reserve	0.0
Accelerated Share Based Compensation [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	0.0	0.0
Restructuring and Related Cost, Incurred Cost	0.2
Restructuring Costs, Paid or Settled	(0.2)
Restructuring Reserve	0.0
Retention Expense [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	0.2	6.5
Restructuring and Related Cost, Incurred Cost	0.2
Restructuring Costs, Paid or Settled	(6.5)
Restructuring Reserve	0.2
Pension curtailment [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	0.0	$ 0.0
Restructuring and Related Cost, Incurred Cost	0.0
Restructuring Costs, Paid or Settled	0.0
Restructuring Reserve	$ 0.0

- 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.

+ References + Details

- Definition

Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

+ References + Details

Debt (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended
Debt (Narrative) (Details) - USD ($) $ in Millions	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Debt Instrument [Line Items]
Long-term Debt, Gross	$ 1,919.0		$ 2,015.6
Principal amount of senior notes outstanding	$ 1,934.2
Senior Notes, stated interest rate, minimum (in hundredths)	5.25%
Senior Notes, stated interest rate, maximim (in hundredths)	6.875%
Gain from early extinguishment of debt	$ 25.2	$ 0.0
Revolving Credit Facility due 2022 [Member]
Debt Instrument [Line Items]
Long-term Debt, Gross	0.0		0.0
Borrowing capacity	1,250.0
Letters of credit outstanding	2.9
6.875% Senior Notes Due 2021 [Member]
Debt Instrument [Line Items]
Long-term Debt, Gross	$ 332.3		382.4
Long-term debt, interest rate (in hundredths)	6.875%
Extinguishment of Debt, Amount	$ 50.1
5.375% Senior Notes Due 2022 [Member]
Debt Instrument [Line Items]
Long-term Debt, Gross	$ 465.1		500.0
Long-term debt, interest rate (in hundredths)	5.375%
Extinguishment of Debt, Amount	$ 34.9
Senior Notes Due 2023 [Member]
Debt Instrument [Line Items]
Long-term debt, interest rate (in hundredths)	5.25%
Extinguishment of Debt, Amount	$ 13.2
Senior Notes Due 2026 [Member]
Debt Instrument [Line Items]
Long-term Debt, Gross	$ 500.0		$ 500.0

Debt Schedule of Debt Instruments (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Long-term Debt, Gross	$ 1,919.0	$ 2,015.6
Less unamortized discount	(15.2)	(16.8)
Debt, Long-term and Short-term, Combined Amount	1,919.0	2,015.6
Long-term debt	1,587.4	2,015.6
Total long-term debt outstanding	1,587.4	2,015.6
Less: current portion of long-term debt	(331.6)	0.0
Revolving Credit Facility due 2022 [Member]
Debt Instrument [Line Items]
Long-term Debt, Gross	0.0	0.0
6.875% Senior Notes Due 2021 [Member]
Debt Instrument [Line Items]
Long-term Debt, Gross	332.3	382.4
5.375% Senior Notes Due 2022 [Member]
Debt Instrument [Line Items]
Long-term Debt, Gross	465.1	500.0
5.25% Senior Notes Due 2023 [Member]
Debt Instrument [Line Items]
Long-term Debt, Gross	636.8	650.0
Senior Notes Due 2026 [Member]
Debt Instrument [Line Items]
Long-term Debt, Gross	$ 500.0	$ 500.0

Commitments and Contingencies Narrative (Details) $ in Millions	Mar. 31, 2020 USD ($)
Commitments and Contingencies Disclosure [Abstract]
Loss Contingency, Estimate of Maximum Possible Loss	$ 10

- Definition

Reflects the estimated amount of loss from the specified contingency as of the balance sheet date.

+ References + Details

Share-Based Compensation (Narrative) (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Accelerated Share Based Compensation	$ 0.2	$ 8.4
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized	10.0
Shares available for future grants	3.7
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	3 years
Restricted Share Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average grant date fair value, grants	$ 2.18	$ 7.98
Unrecognized compensation costs	$ 16.4
Weighted average vesting period	2 years 6 months 3 days
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	3 years
Total fair value of stock that vested during the period	$ 10.5	$ 22.8
Restricted Cash Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation costs	$ 3.1
Weighted average vesting period	3 years
Performance Share Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Share-based Liabilities Paid		$ 10.9
Weighted average grant date fair value, grants	$ 2.17	$ 7.93
Unrecognized compensation costs	$ 4.9
Weighted average vesting period	2 years 6 months 10 days
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	3 years
Restricted Share Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average grant date fair value, grants	$ 2.08	$ 7.93
Unrecognized compensation costs	$ 0.1
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	3 years
Net gain (loss) from asset sales [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Accelerated Share Based Compensation		$ 1.5
General and Administrative Expense [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Accelerated Share Based Compensation		$ 6.9

Share-Based Compensation Share-based compensation expense (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Share-based Compensation Expense [Line Items]
Allocated Share-based Compensation Expense	$ 3.9	$ 11.7
Accelerated Share Based Compensation	0.2	8.4
Stock Options [Member]
Share-based Compensation Expense [Line Items]
Allocated Share-based Compensation Expense	0.0	0.3
Restricted Shares [Member]
Share-based Compensation Expense [Line Items]
Allocated Share-based Compensation Expense	3.3	6.1
Restricted Cash Awards [Member]
Share-based Compensation Expense [Line Items]
Allocated Share-based Compensation Expense	0.2	0.0
Performance Share Units [Member]
Share-based Compensation Expense [Line Items]
Allocated Share-based Compensation Expense	0.4	5.2
Restricted Share Units (RSUs) [Member]
Share-based Compensation Expense [Line Items]
Allocated Share-based Compensation Expense	$ 0.0	0.1
Net gain (loss) from asset sales [Member]
Share-based Compensation Expense [Line Items]
Accelerated Share Based Compensation		1.5
General and Administrative Expense [Member]
Share-based Compensation Expense [Line Items]
Accelerated Share Based Compensation		$ 6.9

Share-Based Compensation Schedule Of Stock Option Transactions (Details) $ / shares in Units, $ in Millions	3 Months Ended
	Mar. 31, 2020 USD ($) $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Outstanding at beginning of period \| shares	1,802,387
Options canceled \| shares	(305,163)
Outstanding at end of period \| shares	1,497,224
Options exercisable, shares \| shares	1,494,157
Unvested options, shares \| shares	3,067
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Weighted average exercise price, beginning of year \| $ / shares	$ 20.87
Weighted average exercise price, canceled in period \| $ / shares	30.12
Weighted average exercise price, end of year \| $ / shares	18.98
Options exercisable, weighted average exercise price \| $ / shares	19.00
Unvested options, weighted average exercise price \| $ / shares	$ 7.52
Weighted average remaining contractual term, options outstanding	2 years 6 months 3 days
Weighted average remaining contractual term, options exercisable	2 years 6 months 3 days
Weighted average remaining contractual term, options unvested	4 years 5 months 1 day
Aggregate intrinsic value, options outstanding \| $	$ 0.0
Aggregate intrinsic value, options exercisable \| $	0.0
Aggregate intrinsic value, options unvested \| $	$ 0.0
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	3 years
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Income tax effect of compensation plan \| $	$ 1.0

Share-Based Compensation Schedule of Restricted Share Awards Transactions (Details) - Restricted Share Awards [Member] - USD ($) $ / shares in Units, $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
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	2,845,033
Shares granted	4,860,052
Shares vested	(1,073,255)
Shares forfeited	(12,583)
Unvested balance at end of period	6,619,247
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	$ 8.67
Weighted average grant date fair value, grants	2.18	$ 7.98
Weighted average grant date fair value, vested	9.76
Weighted average grant date fair value, forfeited	8.61
Weighted average grant date fair value, end of period	$ 3.73
Income tax effect of compensation plan	$ 1.9

Share-Based Compensation Schedule of Restricted Cash Awards Transactions (Details) - Restricted Cash Awards [Member]	3 Months Ended
	Mar. 31, 2020 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unvested balance at beginning of period	0
Shares granted	3,216,675
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period	0
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period	0
Unvested balance at end of period	3,216,675

Share-Based Compensation Schedule Of Performance Share Unit Transactions (Details) - Performance Share Units [Member] - USD ($) $ / shares in Units, $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Share-based Liabilities Paid		$ 10.9
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	625,922
Shares granted	1,926,026
Shares vested	(55,186)
Unvested balance at end of period	2,496,762
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	$ 9.04
Weighted average grant date fair value, grants	2.17	$ 7.93
Weighted average grant date fair value, vested	16.37
Weighted average grant date fair value, end of period	$ 3.65

Share-Based Compensation Schedule of Restricted Share Unit Transactions (Details) - Restricted Share Units (RSUs) [Member] - USD ($) $ / shares in Units, $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	3 years
Unvested balance at beginning of period	34,393
Shares granted	76,083
Shares vested and paid	(26,770)
Unvested balance at end of period	83,706
Weighted average grant date fair value, beginning of period	$ 8.16
Weighted average grant date fair value, grants	2.08	$ 7.93
Weighted average grant date fair value, vested	8.20
Weighted average grant date fair value, end of period	$ 2.62
Income tax effect of compensation plan	$ 0.2