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Summary of Significant Accounting Policies (Tables)
 9 Months Ended
Sep. 30, 2022
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,
2022202120222021
Customer agreements$234,219 $194,924 $656,724 $549,689 
Incentives36,992 36,945 84,065 76,250 
Customer agreements and incentives271,211 231,869 740,789 625,939 
Solar energy systems241,697 127,936 651,010 307,408 
Products118,998 78,960 320,471 241,378 
Solar energy systems and product sales360,695 206,896 971,481 548,786 
Total revenue$631,906 $438,765 $1,712,270 $1,174,725 
Schedule of Cash and Restricted Cash Cash and restricted cash consists of the following (in thousands):
Nine Months Ended September 30,
  20222021
Beginning of period:
   Cash $617,634 $519,965 
   Restricted cash, current and long-term232,797 188,243 
Total$850,431 $708,208 
End of period:
   Cash $672,083 $717,593 
   Restricted cash, current and long-term283,970 223,528 
Total$956,053 $941,121 
Schedule of Cash and Restricted Cash Cash and restricted cash consists of the following (in thousands):
Nine Months Ended September 30,
  20222021
Beginning of period:
   Cash $617,634 $519,965 
   Restricted cash, current and long-term232,797 188,243 
Total$850,431 $708,208 
End of period:
   Cash $672,083 $717,593 
   Restricted cash, current and long-term283,970 223,528 
Total$956,053 $941,121 
Schedule of Accounts Receivable, Net Accounts receivable, net, consists of the following (in thousands):
  September 30, 2022 December 31, 2021
Customer receivables$221,803 $147,371 
Other receivables9,486 9,701 
Allowance for credit losses(12,452)(11,035)
Total$218,837 $146,037 
Schedule of Deferred Revenue The opening balance of deferred revenue was $799.3 million as of December 31, 2020. Deferred revenue consists of the following (in thousands):
 September 30, 2022December 31, 2021
Under Customer Agreements:
Payments received, net$751,090 $645,439 
Financing component balance63,630 58,517 
814,720 703,956 
Under SREC contracts:
Payments received, net182,558 161,575 
Financing component balance9,707 8,080 
192,265 169,655 
Total$1,006,985 $873,611