Summary of Significant Accounting Policies (Tables)

9 Months Ended

Sep. 30, 2025

Accounting Policies [Abstract]

Schedule of Revenue from External Customers

Revenue from external customers (including, but not limited to homeowners) for each group of similar products and services is as follows (in thousands):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2025		2024		2025		2024
Customer agreements	$	458,460	$	368,641	$	1,273,259	$	1,030,859
Incentives	33,140		37,220		79,261		85,794
Customer agreements and incentives	491,600		405,861		1,352,520		1,116,653
Solar energy systems	164,789		47,189		242,731		167,535
Product sales	68,168		84,123		202,913		235,039
Solar energy systems and product sales	232,957		131,312		445,644		402,574
Total revenue	$	724,557	$	537,173	$	1,798,164	$	1,519,227

Schedule of Cash and Restricted Cash

The following table provides a reconciliation of cash and restricted cash reported within the consolidated balance sheets that sum to the total of the same such amounts shown in the consolidated statements of cash flows. Cash and restricted cash consists of the following (in thousands):

	Nine Months Ended September 30,
	2025		2024
Beginning of period:
Cash	$	574,956	$	678,821
Restricted cash, current and long-term	372,460		309,017
Total	$	947,416	$	987,838
End of period:
Cash	$	709,148	$	533,863
Restricted cash, current and long-term	446,608		476,754
Total	$	1,155,756	$	1,010,617

Schedule of Cash and Restricted Cash

The following table provides a reconciliation of cash and restricted cash reported within the consolidated balance sheets that sum to the total of the same such amounts shown in the consolidated statements of cash flows. Cash and restricted cash consists of the following (in thousands):

	Nine Months Ended September 30,
	2025		2024
Beginning of period:
Cash	$	574,956	$	678,821
Restricted cash, current and long-term	372,460		309,017
Total	$	947,416	$	987,838
End of period:
Cash	$	709,148	$	533,863
Restricted cash, current and long-term	446,608		476,754
Total	$	1,155,756	$	1,010,617

Schedule of Accounts Receivable, Net

Accounts receivable, net consists of the following (in thousands):

	September 30, 2025		December 31, 2024
Customer receivables	$	223,847	$	179,152
Other receivables	42,618		6,974
Allowance for credit losses	(18,186)		(15,420)
Total	$	248,279	$	170,706

Schedule of Deferred Revenue

The balance of deferred revenue was $1.2 billion as of December 31, 2023. Deferred revenue consists of the following (in thousands):

	September 30, 2025		December 31, 2024
Under Customer Agreements:
Payments received, net	$	1,028,064	$	950,225
Financing component balance	85,371		79,731
	1,113,435		1,029,956
Under SREC contracts:
Payments received, net	348,101		291,972
Financing component balance	19,645		16,419
	367,746		308,391
Total	$	1,481,181	$	1,338,347