CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	1 Months Ended	11 Months Ended	12 Months Ended
	Feb. 08, 2018	Dec. 31, 2018	Dec. 31, 2019
Cash flows from operating activities:
Net loss	$ (14,862)	$ (3,249,347)	$ (929,622)
Adjustments to reconcile net loss to cash from operating activities:
Depreciation, depletion and amortization	12,554	160,942	132,292
Non-cash lease expense	0	0	3,122
Provision for uncollectible receivables	0	22,438	3,528
Impairment of assets	5,560	3,205,051	905,293
Non-cash reorganization items, net	0	0	(26,160)
Amortization of deferred financing costs	171	526	658
Amortization of debt premium	0	(4,512)	(3,432)
Equity-based compensation expense	0	22,025	6,412
Non-cash exploration expense	4,575	26,055	43,412
(Gain) loss on derivatives	(6,663)	10,247	11,744
Cash settlements of derivatives	(2,296)	(38,961)	7,642
Premium paid on derivatives	0	0	(1,906)
Interest converted into debt related to Founder notes	103	0	0
Interest added to notes receivable from related party	(85)	(949)	0
Loss on sale of property and equipment	1,923	388	106
Equity in earnings of unconsolidated subsidiaries	0	0	(6,216)
Impact on cash from changes in:
Accounts receivable	(21,184)	18,011	26,323
Other receivables	(662)	(4,045)	4,988
Related party receivables and payables	(117)	(11,468)	145
Prepaid expenses and other assets	(591)	11,149	(29,078)
Advances from related party	24,116	(37,668)	(6,664)
Settlement of asset retirement obligations	(63)	(1,610)	(234)
Accounts payable, accrued liabilities and other liabilities	23,857	(41,463)	4,216
Operating lease obligations	0	0	(2,771)
Cash from operating activities	26,336	86,809	143,798
Cash flows from investing activities:
Capital expenditures	(36,695)	(762,760)	(327,567)
Acquisitions, net of cash acquired	(1,218)	(823,778)	0
Proceeds withdrawn from Trust Account	0	1,042,742	0
Proceeds from (Contribution to) equity method investment and other	0	(17,063)	7,238
Proceeds from sale of assets	0	312	0
Cash from investing activities	(37,913)	(560,547)	(320,329)
Cash flows from financing activities:
Proceeds from long-term debt borrowings	60,000	431,500	254,362
Repayments of long-term debt	(43,000)	(273,565)	(9,496)
Payment of taxes withheld on equity-based compensation awards	0	0	(142)
Deferred financing costs paid	0	(3,722)	0
Purchase and retirement of Class A common shares	0	(14,750)	0
Capital contributions (distributions)	(68)	0	0
Proceeds from issuance of Class A shares	0	400,000	0
Repayment of sponsor note	0	(2,000)	0
Repayment of deferred underwriting compensation	0	(36,225)	0
Redemption of Class A common shares	0	(33)	0
Cash from financing activities	16,932	501,205	244,724
Net increase in cash, cash equivalents and restricted cash	5,355	27,467	68,193
Cash, cash equivalents and restricted cash, beginning of period	4,990	10,345	27,855
Cash, cash equivalents and restricted cash, end of period	$ 10,345	$ 27,855	$ 96,048