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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

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Investment in Laramie Energy, LLC - Narrative (Details) - Laramie Energy Company - USD ($)	Jul. 01, 2021	Jun. 30, 2021	Dec. 31, 2020
Schedule of Equity Method Investments [Line Items]
Ownership interest in Laramie Energy, LLC (in Percent)		46.00%
Investment in Laramie Energy, LLC		$ 0	$ 0
Subsequent Event
Schedule of Equity Method Investments [Line Items]
Debt instrument, face amount	$ 160,000,000
Revolving Credit Facility
Schedule of Equity Method Investments [Line Items]
Credit facility, maximum borrowing amount		400,000,000
Asset borrowing base		147,400,000
Balance outstanding on the revolving credit facility		$ 147,400,000