Balance Sheet Components - Property, Plant and Equipment (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 947,730	$ 910,298
Less: accumulated depreciation	(336,359)	(309,670)
Property, plant and equipment, net	611,371	600,628
Energy Servers
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	674,247	669,422
Computers, software and hardware
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	20,640	20,432
Machinery and equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	110,463	106,644
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	8,508	8,455
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	38,109	37,497
Building
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	46,730	46,730
Construction-in-progress
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 49,033	$ 21,118