Summary of Significant Accounting Policies (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Mar. 31, 2021	Jan. 01, 2021	May 31, 2020	May 29, 2020	May 18, 2020	Dec. 31, 2019
Summary of Significant Accounting Policies
Loss accrual	$ 81,066	$ 89,773	$ 24,013						$ 3,702
Operating lease maximum allowed extension percentage	75.00%
Investment in non-marketable equity securities	$ 8,800	5,000
Minimum number of days after an invoice is issued when accounts receivable is considered due	30 days
Maximum number of days after an invoice is issued when accounts receivable is considered due	90 days
Capitalized contract costs	$ 600	400
Allowance for doubtful accounts receivable	43	39
Convertible Debt					$ 120,600
Accumulated deficit	(3,120,911)	(2,396,903)			9,600
Additional paid-in capital	7,297,306	7,070,710			$ 130,200
Impairment of long-lived assets	$ 800	0
Existing contracts	5 years
Property, Plant and Equipment
Impairment of long-lived assets	$ 5,218	$ 10,224	$ 6,430
Stock-Based Compensation
Tax benefit (expense) for stock-based compensation	$ 800
3.75% Convertible Senior Notes
Summary of Significant Accounting Policies
Interest rate (as a percent)	3.75%	3.75%	3.75%	3.75%		3.75%	3.75%	3.75%
PPA Executory Contract Considerations
Property, Plant and Equipment
Impairment of long-lived assets	$ 4,400
Fuel
Property, Plant and Equipment
Estimated useful life	10 years
Hydrogen infrastructure
Property, Plant and Equipment
Estimated useful life	20 years
Minimum
Summary of Significant Accounting Policies
Payment terms for fuel cells and its services	30 days
Extension period	5 years
Capitalized commission fees amortization term	5 years
Maximum
Summary of Significant Accounting Policies
Payment terms for fuel cells and its services	90 days
Extension period	10 years
Capitalized commission fees amortization term	10 years
Leasehold Improvements | Minimum
Property, Plant and Equipment
Estimated useful life	10 years
Leasehold Improvements | Maximum
Property, Plant and Equipment
Estimated useful life	30 years
Machinery and equipment | Minimum
Property, Plant and Equipment
Estimated useful life	2 years
Machinery and equipment | Maximum
Property, Plant and Equipment
Estimated useful life	30 years
Software | Minimum
Property, Plant and Equipment
Estimated useful life	1 year
Software | Maximum
Property, Plant and Equipment
Estimated useful life	5 years