Borrowings - Borrowings under Various Debt Facilities (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Debt Instrument [Line Items]
Non-current borrowings total	$ 330,395	$ 285,003
OPAL Term Loan and Revolving Loan | OPAL Term Loan and Revolving Loan
Debt Instrument [Line Items]
Long-term debt, gross	331,618	286,617
Less: unamortized debt issuance costs	(8,945)	(9,122)
Less: current portion	(9,349)	(10,865)
Non-current borrowings total	313,324	266,630
Sunoma Loan | Sunoma Loan
Debt Instrument [Line Items]
Long-term debt, gross	19,539	20,846
Less: unamortized debt issuance costs	(607)	(717)
Less: current portion	(1,861)	(1,756)
Non-current borrowings total	$ 17,071	$ 18,373