Fair Value Measurements - Carrying Amounts and Fair Values of Financial Instruments (Detail) - USD ($) $ in Thousands		Dec. 31, 2023	Dec. 31, 2022
Assets:
Marketable securities		$ 72,000	$ 57,700
Reported Value Measurement
Assets:
Commodity swaps, collars and basis swaps		442,971	28,835
Marketable securities	[1]	71,989	57,717
(Liabilities):
Commodity swaps, collars and basis swaps		(329)	(166,912)
Bank credit facility	[2]	0	(19,000)
Deferred compensation plan	[3]	(117,125)	(189,241)
Reported Value Measurement | Contingent Consideration
Assets:
Divestiture contingent consideration		0	13,080
Estimate of Fair Value Measurement
Assets:
Commodity swaps, collars and basis swaps		442,971	28,835
Marketable securities	[1]	71,989	57,717
(Liabilities):
Commodity swaps, collars and basis swaps		(329)	(166,912)
Bank credit facility	[2]	0	(19,000)
Deferred compensation plan	[3]	(117,125)	(189,241)
Estimate of Fair Value Measurement | Contingent Consideration
Assets:
Divestiture contingent consideration		0	13,080
4.875% Senior Notes Due 2025 | Reported Value Measurement
(Liabilities):
Senior notes	[2]	(688,388)	(750,000)
4.875% Senior Notes Due 2025 | Estimate of Fair Value Measurement
(Liabilities):
Senior notes	[2]	(679,363)	(714,870)
8.25% Senior Notes Due 2029 | Reported Value Measurement
(Liabilities):
Senior notes	[2]	(600,000)	(600,000)
8.25% Senior Notes Due 2029 | Estimate of Fair Value Measurement
(Liabilities):
Senior notes	[2]	(624,816)	(618,312)
4.75% Senior Notes Due 2030 | Reported Value Measurement
(Liabilities):
Senior notes	[2]	(500,000)	(500,000)
4.75% Senior Notes Due 2030 | Estimate of Fair Value Measurement
(Liabilities):
Senior notes	[2]	$ (463,085)	$ (442,350)

[1] 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.

[2] 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.

[3] 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.