Portfolio Financings - Schedule of PPA Entities' Assets and Liabilities (Details) - USD ($) $ in Thousands		Dec. 31, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	[1]	$ 396,035	$ 246,947
Restricted cash, current	[1]	92,540	52,470
Accounts receivable	[1]	87,789	96,186
Customer financing receivable	[1]	5,784	5,428
Prepaid expenses and other current assets	[1]	30,661	30,718
Total current assets		806,420	618,604
Customer financing receivable, non-current	[1]	39,484	45,268
Restricted cash, non-current	[1]	126,539	117,293
Other long-term assets	[1]	39,116	34,511
Total assets		1,725,571	1,454,387
Current liabilities:
Accrued expenses and other current liabilities	[1]	114,138	112,004
Deferred revenue and customer deposits	[1]	89,975	114,286
Long-term Portion of Non-Recourse Debt, Excluding Related Party, Current Maturities	[1]	17,483	120,846
Total current liabilities		342,479	436,377
Deferred revenue and customer deposits, non-current	[1]	90,310	87,463
Non-recourse long term debt, non-current	[1]	217,416	102,045
Total liabilities		1,518,547	1,312,991
PPA Entities
Current assets:
Cash and cash equivalents		1,541	1,421
Restricted cash, current		3,078	4,698
Accounts receivable		5,112	4,420
Customer financing receivable		5,784	5,428
Prepaid expenses and other current assets		3,071	3,048
Total current assets		18,586	19,015
Property and equipment, net		228,546	252,020
Customer financing receivable, non-current		39,484	45,268
Restricted cash, non-current		23,239	15,320
Other long-term assets		2,362	37
Total assets		312,217	331,660
Current liabilities:
Accrued expenses and other current liabilities		194	19,510
Deferred revenue and customer deposits		662	662
Long-term Portion of Non-Recourse Debt, Excluding Related Party, Current Maturities		17,483	120,846
Total current liabilities		18,339	141,018
Deferred revenue and customer deposits, non-current		5,410	6,072
Non-recourse long term debt, non-current		217,417	102,045
Total liabilities		$ 241,166	$ 249,135

[1] We have variable interest entities, which represent a portion of the consolidated balances recorded within these financial statement line items in the consolidated balance sheets (see Note 11 - Portfolio Financings).