Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Cash Flows from Operating Activities:
Net Income (Loss)	$ 466,979	$ 34,110	$ (13,214)
Adjustments to Reconcile Net Income (Loss) to Net Cash Provided by Operating Activities:
Depreciation, Depletion and Amortization	226,878	224,583	210,760
Stock/Unit-Based Compensation	7,890	6,632	11,579
Gain on Sale of Assets	(34,589)	(11,723)	(15,295)
Amortization of Debt Issuance Costs	8,314	8,552	7,447
Loss (Gain) on Debt Extinguishment	5,623	(657)	(21,352)
Deferred Income Taxes	49,387	(14,760)	11,685
Other Adjustments to Net Income	3,880	644	1,251
Changes in Operating Assets:
Trade and Other Receivables	(52,577)	44,707	11,130
Inventories	(3,020)	(6,676)	(2,069)
Prepaid Expenses and Other Assets	2,883	229	7,574
Changes in Other Assets	(26,063)	(13,797)	(21,058)
Changes in Operating Liabilities:
Accounts Payable	39,235	11,473	(30,759)
Commodity Derivatives, net Liability	(37,062)	52,204	0
Other Operating Liabilities	14,453	27,461	(2,915)
Changes in Other Liabilities	(21,221)	(57,413)	(25,433)
Net Cash Provided by Operating Activities	650,990	305,569	129,331
Cash Flows from Investing Activities:
Capital Expenditures	(171,506)	(132,752)	(86,004)
Proceeds from Sales of Assets	21,538	13,572	9,899
Other Investing Activity	7,790	(8,181)	(229)
Net Cash Used in Investing Activities	(142,178)	(127,361)	(76,334)
Cash Flows from Financing Activities:
Proceeds from Finance Lease Obligations	0	0	19,314
Payments on Finance Lease Obligations	(24,511)	(27,447)	(28,295)
Proceeds from Long-Term Debt	0	75,000	0
Payments on Other Debt	(840)	(731)	(705)
Distributions to Noncontrolling Interest	0	0	(5,575)
Shares/Units Withheld for Taxes	(6,261)	(2,303)	(863)
Debt Issuance and Financing Fees	(7,957)	(2,368)	(9,002)
Dividends	(71,486)	0	0
Net Cash Used in Financing Activities	(380,066)	(30,852)	(82,440)
Net Increase (Decrease) in Cash and Cash Equivalents and Restricted Cash	128,746	147,356	(29,443)
Cash and Cash Equivalents and Restricted Cash at Beginning of Period	198,206	50,850	80,293
Cash and Cash Equivalents and Restricted Cash at End of Period	326,952	198,206	50,850
Cash and Cash Equivalents	273,070	149,913	50,850
Restricted Cash - Current	40,366	32,605	0
Restricted Cash - Non-current	13,516	15,688	0
Cash and Cash Equivalents and Restricted Cash at End of Period	326,952	198,206	50,850
Term Loan A Facility
Cash Flows from Financing Activities:
Payments on Debt	(41,250)	(25,000)	(22,500)
Term Loan B Facility
Cash Flows from Financing Activities:
Payments on Debt	(175,687)	(30,911)	(2,750)
Senior Secured Second Lien Notes due 2025
Cash Flows from Financing Activities:
Payments on Debt	$ (52,074)	$ (17,092)	$ (32,064)