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Summary of Significant Accounting Policies (Tables)
 6 Months Ended
Jun. 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 June 30,Six Months Ended June 30,
2022202120222021
Customer agreements$232,003 $196,935 $422,505 $354,765 
Incentives27,883 22,539 47,073 39,305 
Customer agreements and incentives259,886 219,474 469,578 394,070 
Solar energy systems209,314 90,422 409,313 179,472 
Products115,380 91,270 201,473 162,418 
Solar energy systems and product sales324,694 181,692 610,786 341,890 
Total revenue$584,580 $401,166 $1,080,364 $735,960 
Schedule of Cash and Restricted Cash Cash and restricted cash consists of the following (in thousands):
Six Months Ended June 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 $522,460 $679,588 
   Restricted cash, current and long-term340,668 178,015 
Total$863,128 $857,603 
Schedule of Cash and Restricted Cash Cash and restricted cash consists of the following (in thousands):
Six Months Ended June 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 $522,460 $679,588 
   Restricted cash, current and long-term340,668 178,015 
Total$863,128 $857,603 
Schedule of Accounts Receivable, Net Accounts receivable, net, consists of the following (in thousands):
  June 30, 2022 December 31, 2021
Customer receivables$215,094 $147,371 
Other receivables13,756 9,701 
Allowance for credit losses(12,026)(11,035)
Total$216,824 $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):
 June 30, 2022December 31, 2021
Under Customer Agreements:
Payments received, net$708,698 $645,439 
Financing component balance61,920 58,517 
770,618 703,956 
Under SREC contracts:
Payments received, net160,970 161,575 
Financing component balance9,523 8,080 
170,493 169,655 
Total$941,111 $873,611