Summary of Significant Accounting Policies - Schedule of disaggregation of revenue (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Disaggregation of Revenue [Line Items]
Revenues	$ 22,813	$ 0	$ 40,908	$ 0
PPA revenues
Disaggregation of Revenue [Line Items]
Revenues	12,234		19,361
SLA revenues
Disaggregation of Revenue [Line Items]
Revenues	7,025		14,947
Solar renewable energy credit revenues
Disaggregation of Revenue [Line Items]
Revenues	1,662		3,196
Government incentives
Disaggregation of Revenue [Line Items]
Revenues	72		96
Servicing revenues
Disaggregation of Revenue [Line Items]
Revenues	112		225
Intangibles amortization, unfavorable solar renewable energy agreements
Disaggregation of Revenue [Line Items]
Revenues	976		1,419
Other revenue
Disaggregation of Revenue [Line Items]
Revenues	$ 732		$ 1,664