Balance Sheet Components - Accrued Other Current Liabilities (Details) - USD ($) $ in Thousands		Sep. 30, 2022	Dec. 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Compensation and benefits		$ 30,002	$ 38,222
Sales-related liabilities		10,374	6,040
Delaware grant		9,495	0
Accrued installation		6,032	13,968
Accrued legal expenses		5,513	1,765
Current portion of derivative liabilities		3,053	6,059
Accrued consulting expenses		1,423	1,731
Sales tax liabilities		1,359	1,491
Interest payable		719	2,159
Option to acquire a variable number of shares of Class A Common Stock		0	13,200
Other		34,040	29,503
Accrued other current liabilities	[1]	$ 102,010	$ 114,138

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