Balance Sheet Components - Property, Plant and Equipment (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 899,800	$ 869,681
Less: Accumulated depreciation	(297,871)	(262,622)
Property, plant and equipment, net	601,929	607,059
Energy Servers
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	657,418	650,600
Computers, software and hardware
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	21,278	20,275
Machinery and equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	105,652	101,650
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	8,334	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	46,686	40,512
Construction in progress
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 22,935	$ 12,611