Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2022

Fair Value Disclosures [Abstract]

Fair Value Hierarchy Table for Assets and Liabilities Measured at Fair Value

We use a market approach for our recurring fair value measurements and endeavor to use the best information available. Accordingly, valuation techniques that maximize the use of observable impacts are favored. The following tables present the fair value hierarchy table for assets and liabilities measured at fair value, on a recurring basis (in thousands):

		Fair Value Measurements at December 31, 2022 Using:
		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)			Significant Unobservable Inputs (Level 3)		Total Carrying Value as of December 31, 2022
Trading securities held in the deferred    compensation plans		$	57,717	$	—		$	—	$	57,717
Derivatives	–swaps		—		(109,844	)		—		(109,844	)
	–collars		—		(16,837	)		—		(16,837	)
	–three-way collars		—		(11,917	)		—		(11,917	)
	–basis swaps		—		521			—		521
Divestiture contingent consideration			—		13,080			—		13,080

		Fair Value Measurements at December 31, 2021 Using:
		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)			Significant Unobservable Inputs (Level 3)			Total Carrying Value as of December 31, 2021
Trading securities held in the deferred    compensation plans		$	69,606	$	—		$	—		$	69,606
Derivatives	–swaps		—		(127,934	)		—			(127,934	)
	–calls		—		(61	)		—			(61	)
	–collars		—		(4,201	)		(1,272	)		(5,473	)
	–three-way collars		—		(24,932	)		—			(24,932	)
	–basis swaps		—		16,151			—			16,151
	–swaptions		—		—			(11,149	)		(11,149	)
Derivatives	–freight swaps		—		114			—			114
Divestiture contingent consideration			—		26,640			—			26,640

Reconciliation of the Beginning and Ending Balances for Derivative Instruments Classified as Level 3 in the Fair Value Hierarchy

The following is a reconciliation of the beginning and ending balances for derivative instruments classified as Level 3 in the fair value hierarchy (in thousands):

	Year Ended December 31, 2022
Balance at December 31, 2021	$	(12,421	)
Settlements		1,272
Transfers out of Level 3		11,149
Balance at December 31, 2022	$	—

Carrying Amounts and Fair Values of Financial Instruments

The following table presents the carrying amounts and the fair values of our financial instruments as of December 31, 2022 and 2021 (in thousands):

	December 31, 2022						December 31, 2021
	Carrying Value			Fair Value			Carrying Value			Fair Value
Assets:
Commodity swaps, collars and basis swaps	$	28,835		$	28,835		$	17,699		$	17,699
Divestiture contingent consideration		13,080			13,080			26,640			26,640
Marketable securities (a)		57,717			57,717			69,606			69,606
(Liabilities):
Commodity swaps, collars and basis swaps		(166,912	)		(166,912	)		(170,983	)		(170,983	)
Bank credit facility (b)		(19,000	)		(19,000	)		—			—
5.00% senior notes due 2022 (b)		—			—			(169,589	)		(171,488	)
5.875% senior notes due 2022 (b)		—			—			(48,528	)		(48,955	)
5.00% senior notes due 2023 (b)		—			—			(532,335	)		(543,471	)
4.875% senior notes due 2025 (b)		(750,000	)		(714,870	)		(750,000	)		(776,153	)
9.25% senior notes due 2026 (b)		—			—			(850,000	)		(916,929	)
8.25% senior notes due 2029 (b)		(600,000	)		(618,312	)		(600,000	)		(669,648	)
4.75% senior notes due 2030 (b)		(500,000	)		(442,350	)		—			—
Deferred compensation plan (c)		(189,241	)		(189,241	)		(165,395	)		(165,395	)

(a)	Marketable securities, which are held in our deferred compensation plans, are actively traded on major exchanges and are updated based on end of period closing prices which is a Level 1 input.
(b)	The book value of our bank debt approximates fair value because of its floating rate structure. The fair value of our senior notes is based on end of period market quotes which are Level 2 inputs.
(c)	The fair value of our deferred compensation plan is updated at the closing price on the balance sheet date which is a Level 1 input.