Summary of Significant Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2021

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 March 31,
	2021		2020
Customer agreements	$	157,830	$	94,253
Incentives	16,766		4,871
Customer agreements and incentives	174,596		99,124
Solar energy systems	89,050		71,277
Products	71,148		40,330
Solar energy systems and product sales	160,198		111,607
Total revenue	$	334,794	$	210,731

Cash and Restricted Cash

Cash and restricted cash consists of the following (in thousands):

	Three Months Ended March 31,
	2021		2020
Beginning of period:
Cash	$	519,965	$	269,577
Restricted cash, current and long-term	188,243		93,652
Total	$	708,208	$	363,229
End of period:
Cash	$	649,493	$	286,418
Restricted cash, current and long-term	163,940		79,830
Total	$	813,433	$	366,248

Cash and Restricted Cash

Cash and restricted cash consists of the following (in thousands):

	Three Months Ended March 31,
	2021		2020
Beginning of period:
Cash	$	519,965	$	269,577
Restricted cash, current and long-term	188,243		93,652
Total	$	708,208	$	363,229
End of period:
Cash	$	649,493	$	286,418
Restricted cash, current and long-term	163,940		79,830
Total	$	813,433	$	366,248

Accounts Receivable, Net

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

	March 31, 2021		December 31, 2020
Customer receivables	$	125,583	$	97,723
Other receivables	1,766		710
Rebates receivable	4,165		1,569
Allowance for credit losses	(6,015)		(4,861)
Total	$	125,499	$	95,141

Deferred Revenue

The opening balance of deferred revenue was $729.5 million as of December 31, 2019. Deferred revenue consists of the following (in thousands):

	March 31, 2021		December 31, 2020
Under Customer Agreements:
Payments received, net	$	616,085	$	614,906
Financing component balance	53,541		51,835
	669,626		666,741
Under SREC contracts:
Payments received, net	130,603		126,793
Financing component balance	6,902		5,742
	137,505		132,535
Total	$	807,131	$	799,276