CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Statement of Cash Flows [Abstract]
Net income (loss)	$ (20,021)	$ 163,094
Cash flows from operating activities
Loss on exchange of debt	1,231	0
Depreciation, depletion and amortization	23,884	40,718
Impairments of oil and gas properties	1,811	0
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Net (gains) losses	44,368	(151,119)
Cash settlements and premiums received (paid), net	7,169	269
Deferred income tax expense (benefit)	(310)	2,320
Gain (Loss) on Disposition of Other Assets	(4)	(6)
Noncash Interest Expense	611	823
Share-based compensation	2,246	856
Other, net	6	8
Changes in operating assets and liabilities, net	(14,442)	16,048
Net Cash Provided by (Used in) Operating Activities	32,211	72,473
Cash flows from investing activities
Capital expenditures	(34,758)	(62,015)
Proceeds from sales of assets, net	4	75
Net cash used in investing activities	(34,754)	(61,940)
Cash flows from financing activities
Proceeds from credit facility borrowings	0	46,000
Repayment of credit facility borrowings	(85,500)	(9,000)
Repayments of 2nd Lien Term	53,140	0
Proceeds from Issuance of Common Limited Partners Units	151,160	0
Proceeds from Issuance of Redeemable Preferred Stock	2	0
Transaction costs of noncontrolling interest paid	5,543	0
Issue costs of noncontrolling interest securities paid	(3,758)	0
Debt issuance costs paid	(1,830)	0
Net cash provided by financing activities	1,391	37,000
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect, Total	(1,152)	47,533
Cash and cash equivalents – beginning of period	13,020	7,798
Cash and cash equivalents – end of period	11,868	55,331
Cash paid for:
Interest, net of amounts capitalized	4,888	7,442
Non-cash investing and financing activities:
Changes in property and equipment related to capital contributions	(38,415)	0
Changes in asset retirement obligation related to capital contributions	14	0
Changes in accrued liabilities related to capital expenditures	$ 20,246	$ 18,660