Balance Sheet Components - Accrued Other Current Liabilities (Details) - USD ($) $ in Thousands		Sep. 30, 2019	Dec. 31, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Liabilities recorded for mandatory redeemable noncontrolling interest		$ 12,449	$ 0
Compensation and benefits		19,834	16,742
Current portion of derivative liabilities		5,366	3,232
Managed services liabilities		3,235	5,091
Accrued installation		7,457	6,859
Sales tax liabilities		5,709	1,700
Interest payable		3,520	4,675
Other		24,580	31,236
Accrued other current liabilities	[1]	$ 82,150	$ 69,535

[1] We have variable interest entities which represent a portion of the consolidated balances are recorded within the "Cash and cash equivalents," "Restricted cash," "Accounts receivable," "Customer financing receivable," "Prepaid expenses and other current assets," "Property and equipment, net," "Customer financing receivable, non-current," "Restricted cash, non-current," "Other long-term assets," "Accounts payable," "Accrued other current liabilities," "Deferred revenue and customer deposits," "Current portion of non-recourse debt from related parties," "Derivative liabilities, net of current portion," "Deferred revenue and customer deposits, net of current portion," "Long-term portion of non-recourse debt," and "Other long-term liabilities" financial statement line items in the Condensed Consolidated Balance Sheets (see Note 12 - Power Purchase Agreement Programs).