Investments in Other Entities and Noncontrolling Interest in a Subsidiary - bp Joint Venture (Details) - USD ($) $ in Thousands, shares in Millions			1 Months Ended	3 Months Ended		6 Months Ended
	Jun. 21, 2021	Apr. 13, 2021	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Mar. 30, 2022	Dec. 31, 2021	Dec. 18, 2020
Schedule of Equity Method Investments [Line Items]
Income (loss) from equity method investments				$ (1,193)	$ 121	$ (2,870)	$ (305)
BP Products North America | bp Loan
Schedule of Equity Method Investments [Line Items]
Debt issuance amount										$ 50,000
bpJV | ADG RNG Production Facilities
Schedule of Equity Method Investments [Line Items]
Investment commitment in joint venture	$ 50,200	$ 30,000
Additional commitment in joint venture		$ 20,000
Initial contribution commitment			$ 30,000
Ownership interest (as a percent)				50.00%		50.00%
Income (loss) from equity method investments				$ (800)		$ (2,000)
Investment balance				119,400		119,400			$ 69,800
bpJV | ADG RNG Production Facilities | bpJV Capital Call
Schedule of Equity Method Investments [Line Items]
Investment commitment in joint venture				$ 51,600		51,600			71,600
Capital call contribution amount									143,200
bpJV | ADG RNG Production Facilities | bpJV Capital Call 2
Schedule of Equity Method Investments [Line Items]
Investment commitment in joint venture								$ 38,100
Initial contribution commitment						$ 0
Capital call contribution amount								76,200
bpJV | ADG RNG Production Facilities | Class A Units
Schedule of Equity Method Investments [Line Items]
Number of units received		30.0
Payments to acquire units in joint venture	20,000
Priority Return to acquire additional units	$ 200
bpJV | ADG RNG Production Facilities | bp
Schedule of Equity Method Investments [Line Items]
Investment commitment in joint venture		$ 50,000
Ownership interest (as a percent)				50.00%		50.00%
bpJV | ADG RNG Production Facilities | bp | bpJV Capital Call
Schedule of Equity Method Investments [Line Items]
Investment commitment in joint venture									$ 71,600
bpJV | ADG RNG Production Facilities | bp | bpJV Capital Call 2
Schedule of Equity Method Investments [Line Items]
Investment commitment in joint venture								$ 38,100
bpJV | ADG RNG Production Facilities | bp | Class A Units
Schedule of Equity Method Investments [Line Items]
Number of units received		30.0
bpJV | ADG RNG Production Facilities | bp | Class B Units
Schedule of Equity Method Investments [Line Items]
Number of units received		20.0