Investment in Laramie Energy, LLC - Narrative (Details) - USD ($)	3 Months Ended	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Jul. 01, 2021	Nov. 20, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2019	Mar. 04, 2019	Jan. 11, 2019	Dec. 31, 2018
Schedule of Equity Method Investments [Line Items]
Long-term Debt		$ 564,558,000	$ 708,593,000
Impairment expense		$ 1,838,000	85,806,000	$ 0
Laramie Energy Company
Schedule of Equity Method Investments [Line Items]
Debt instrument, face amount					$ 160,000,000
Impairment expense	$ 355,200,000
Disposal group, property, plant and equipment										$ 17,500,000
Term Loan B | Term Loan
Schedule of Equity Method Investments [Line Items]
Debt instrument, face amount											$ 250,000,000
Laramie Energy Company
Schedule of Equity Method Investments [Line Items]
Ownership of laramie energy, LLC		46.00%
Equity method investments, fair value								$ 1,900,000	$ 51,800,000
Equity method investment, aggregate cost								$ 47,200,000	$ 133,300,000
Impairment charge			45,294,000	81,515,000
Impairment expense		$ 0	0	355,220,000
Investment in Laramie Energy, LLC	$ 46,905,000		0	$ 46,905,000			$ 0					$ 136,656,000
Laramie Energy Company | Term Loan B | Term Loan
Schedule of Equity Method Investments [Line Items]
Long-term Debt		$ 140,100,000
Laramie Energy Company | Revolving Credit Facility
Schedule of Equity Method Investments [Line Items]
Line credit maximum borrowing amount			400,000,000
Current borrowing capacity			139,700,000
Balance outstanding on the revolving credit facility			$ 139,700,000
Laramie Energy Company | Revolving Credit Facility | Deficiency Loan
Schedule of Equity Method Investments [Line Items]
Line credit maximum borrowing amount						$ 140,000,000
Borrowing base deficiency						$ 60,000,000