Portfolio Financings - Schedule of VIEs (Details) $ in Thousands	1 Months Ended	12 Months Ended
	Dec. 31, 2023 MMBTU company	Dec. 31, 2023 USD ($) MMBTU company	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Variable Interest Entity [Line Items]
Number of investment companies | company	1	1
Term of power purchase agreements (in years)	4 years
PPA Company 5
Variable Interest Entity [Line Items]
Maximum size of installation (in megawatts) | MMBTU	40	40
Installed size (in megawatts) | MMBTU	37	37
Term of power purchase agreements (in years)		15 years
Initial income (loss) and tax benefits allocation to Equity Investor	99.00%	99.00%
Initial cash allocation to Equity Investor	90.00%	90.00%
Company cash contributions		$ 27,932
Equity Investor cash contributions		227,344
Debt financing		131,237
Distributions to Equity Investor		227,344	$ 30,786	$ 26,601
Debt repayment—principal		$ 267,226	$ 139,795	$ 132,587