Balance Sheet Components - Property, Plant and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 910,298	$ 869,681
Less: accumulated depreciation	(309,670)	(262,622)
Property, plant and equipment, net	600,628	607,059
Energy Servers
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	669,422	650,600
Computers, software and hardware
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	20,432	20,275
Machinery and equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	106,644	101,650
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	8,455	8,339
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	37,497	35,694
Building
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	46,730	40,512
Construction in progress
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 21,118	$ 12,611