CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Operating activities:
Net income	$ 266,340,000	$ 871,142,000	$ 1,183,370,000
Adjustments to reconcile net income to net cash provided from operating activities:
Deferred income tax (benefit) expense	(23,900,000)	227,654,000	215,772,000
Depletion, depreciation and amortization	358,356,000	350,165,000	353,420,000
Abandonment and impairment of unproved properties	8,417,000	46,359,000	28,608,000
Derivative fair value (income) loss	(56,726,000)	(821,154,000)	1,188,506,000
Cash settlements on derivative financial instruments	432,392,000	253,514,000	(1,190,154,000)
Divestiture contract obligation, including accretion	37,088,000	99,595,000	69,766,000
Allowance for bad debt	50,000	0	(250,000)
Amortization of deferred financing costs and other	4,526,000	4,735,000	7,959,000
Deferred and stock-based compensation	53,864,000	67,849,000	107,959,000
Gain on the sale of assets	(311,000)	(454,000)	(409,000)
(Gain) loss on early extinguishment of debt	(257,000)	(438,000)	69,493,000
Changes in working capital:
Accounts receivable	(19,586,000)	223,081,000	(3,286,000)
Other current assets	3,676,000	(1,285,000)	(18,438,000)
Accounts payable	(443,000)	(77,057,000)	17,077,000
Accrued liabilities and other	(118,972,000)	(265,814,000)	(164,649,000)
Net cash provided from operating activities	944,514,000	977,892,000	1,864,744,000
Investing activities:
Additions to natural gas properties	(570,426,000)	(571,819,000)	(456,505,000)
Additions to field service assets	(2,069,000)	(701,000)	(682,000)
Acreage purchases	(56,085,000)	(34,410,000)	(30,885,000)
Proceeds from disposal of assets	313,000	872,000	518,000
Purchases of marketable securities held by the deferred compensation plan	(41,798,000)	(45,168,000)	(43,691,000)
Proceeds from the sales of marketable securities held by the deferred compensation plan	46,232,000	49,521,000	41,413,000
Net cash used in investing activities	(623,833,000)	(601,705,000)	(489,832,000)
Financing activities:
Borrowings on credit facility	0	185,000,000	972,000,000
Repayments on credit facility	0	(204,000,000)	(953,000,000)
Issuance of senior notes	0	0	500,000,000
Repayment of senior notes	(79,272,000)	(60,934,000)	(1,659,422,000)
Dividends paid	(77,463,000)	(77,241,000)	(38,638,000)
Treasury stock purchases	(65,260,000)	(19,042,000)	(399,699,000)
Debt issuance costs	0	0	(16,176,000)
Taxes paid for shares withheld	(25,217,000)	(39,481,000)	(25,492,000)
Change in cash overdrafts	(1,084,000)	(23,923,000)	9,071,000
Proceeds from the sales of common stock held by the deferred compensation plan	20,131,000	75,201,000	22,229,000
Net cash used in financing activities	(228,165,000)	(164,420,000)	(1,589,127,000)
Increase (decrease) in cash and cash equivalents	92,516,000	211,767,000	(214,215,000)
Cash and cash equivalents at beginning of period	211,974,000	207,000	214,422,000
Cash and cash equivalents at end of period	$ 304,490,000	$ 211,974,000	$ 207,000