Investment in Laramie Energy, LLC - Equity Method Investees Net loss (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Schedule of Equity Method Investments [Line Items]
Impairment expense	$ 1,838	$ 85,806	$ 0
Depreciation, depletion, and amortization	94,241	90,036	86,121
Unrealized (gain) loss on derivative contracts	(1,393)	(3,322)	9,350
Laramie Energy Company
Schedule of Equity Method Investments [Line Items]
Impairment expense	0	0	355,220
Depreciation, depletion, and amortization	26,458	34,966	82,632
Unrealized (gain) loss on derivative contracts	$ 32,417	$ 4,245	$ (4,283)