Income Taxes - Deferred Tax Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Tax credits and net operating loss carryforwards	$ 562,384	$ 510,599
Lease liabilities	151,937	128,151
Depreciation and amortization	9,516	7,541
Deferred revenue	23,208	27,134
Accruals and reserves	14,524	15,068
Stock-based compensation	20,138	35,815
Other items - deferred tax assets	28,258	25,931
Gross deferred tax assets	809,965	750,239
Valuation allowance	(689,257)	(614,958)
Net deferred tax assets	120,708	135,281
Investment in PPA entities	(7,911)	(10,757)
Discount upon issuance of debt	0	(29,513)
Managed services - deferred costs	(20,935)	(21,898)
Right-of-use assets and leased assets	(89,165)	(70,818)
Other items - deferred tax liability	(1,742)	(1,413)
Gross deferred tax liabilities	(119,753)	(134,399)
Deferred tax assets, net	$ 955	$ 882