Fair Value Measurements - Carrying Amounts and Fair Values of Financial Instruments (Detail) - USD ($) $ in Thousands		Jun. 30, 2024	Dec. 31, 2023
Reported Value Measurement
Assets:
Commodity derivatives		$ 261,397	$ 442,971
Marketable securities	[1]	59,757	71,989
(Liabilities):
Commodity derivatives		(5,778)	(329)
Bank credit facility	[2]	0	0
Deferred compensation plan	[3]	(85,156)	(117,125)
Estimate of Fair Value Measurement
Assets:
Commodity derivatives		261,397	442,971
Marketable securities	[1]	59,757	71,989
(Liabilities):
Commodity derivatives		(5,778)	(329)
Bank credit facility	[2]	0	0
Deferred compensation plan	[3]	(85,156)	(117,125)
4.875% Senior Notes Due 2025 | Reported Value Measurement
(Liabilities):
Senior notes	[2]	(621,136)	(688,388)
4.875% Senior Notes Due 2025 | Estimate of Fair Value Measurement
(Liabilities):
Senior notes	[2]	(617,335)	(679,363)
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]	(622,122)	(624,816)
4.75% senior subordinated notes due 2030 | Reported Value Measurement
(Liabilities):
Senior notes	[2]	(500,000)	(500,000)
4.75% senior subordinated notes due 2030 | Estimate of Fair Value Measurement
(Liabilities):
Senior notes	[2]	$ (468,935)	$ (463,085)

[1] Marketable securities, which are held in our deferred compensation plans, are actively traded on major exchanges.

[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 to the closing price on the balance sheet date, which is a Level 1 input.