Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands		1 Months Ended	5 Months Ended	6 Months Ended
	Feb. 08, 2018	Feb. 08, 2018	Jun. 30, 2018	Jun. 30, 2019
Supplemental cash flow information:
Cash paid for interest			$ 22,996	$ 29,513
Cash paid for income taxes, net of refunds			1,573	706
Non-cash investing and financing activities:
Increase in asset retirement obligations			877	634
Increase (decrease) in accruals or payables for capital expenditures			(25,798)	(127,875)
Increase in withholding tax accruals for share-based compensation			0	165
Distribution of non-STACK assets, net of liabilities			0	0
Equity issued in Business Combination			2,067,393	0
Release of common stock from possible redemption	$ 996,384		966,384	0
Tax effect of redemption of noncontrolling interests in SRII Opco for Class A common shares and other			$ (437)	$ 0
Predecessor
Supplemental cash flow information:
Cash paid for interest		$ 1,145
Cash paid for income taxes, net of refunds		0
Non-cash investing and financing activities:
Increase in asset retirement obligations		0
Increase (decrease) in accruals or payables for capital expenditures		4,896
Increase in withholding tax accruals for share-based compensation		0
Distribution of non-STACK assets, net of liabilities		43,482
Equity issued in Business Combination		0
Release of common stock from possible redemption		0
Tax effect of redemption of noncontrolling interests in SRII Opco for Class A common shares and other		$ 0