Balance Sheet Components - Property, Plant and Equipment (Details) - USD ($) $ in Thousands		Sep. 30, 2019	Dec. 31, 2018
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross		$ 615,562	$ 719,792
Less: Accumulated depreciation		(231,185)	(238,378)
Property, plant and equipment, net	[1]	384,377	481,414
Energy Servers
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross		397,482	511,485
Computers, software and hardware
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross		20,592	16,536
Machinery and equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross		103,064	99,209
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross		9,017	4,337
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross		36,244	18,629
Building
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross		40,512	40,512
Construction in progress
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross		$ 8,651	$ 29,084

[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).