Commitments and Contingencies - bpJV Capital Call Contribution (Details) - bpJV - ADG RNG Production Facilities - USD ($) $ in Millions	1 Months Ended	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2022	Mar. 30, 2022	Dec. 31, 2021	Jun. 21, 2021	Apr. 13, 2021
Other Commitments [Line Items]
Investment commitment in joint venture					$ 50.2	$ 30.0
Initial contribution commitment	$ 30.0
bp
Other Commitments [Line Items]
Investment commitment in joint venture						$ 50.0
bpJV Capital Call
Other Commitments [Line Items]
Capital call contribution amount				$ 143.2
Investment commitment in joint venture		$ 51.6		71.6
bpJV Capital Call | bp
Other Commitments [Line Items]
Investment commitment in joint venture				$ 71.6
bpJV Capital Call 2
Other Commitments [Line Items]
Capital call contribution amount			$ 76.2
Investment commitment in joint venture			38.1
Initial contribution commitment		$ 0.0
bpJV Capital Call 2 | bp
Other Commitments [Line Items]
Investment commitment in joint venture			$ 38.1