Revenue - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Revenue
Net revenue	$ 120,264	$ 210,286
Sales of fuel cell systems
Revenue
Net revenue	19,003	28,852
Sale of hydrogen infrastructure
Revenue
Net revenue	12,295	48,868
Sale of electrolyzers
Revenue
Net revenue	1,351	40,032
Sales of engineered equipment
Revenue
Net revenue	4,216	7,753
Services performed on fuel cell systems and related infrastructure
Revenue
Net revenue	13,023	9,097
Power purchase agreements
Revenue
Net revenue	18,304	7,937
Fuel delivered to customers and related equipment
Revenue
Net revenue	18,286	10,142
Sales of cryogenic equipment and other
Revenue
Net revenue	31,430	56,589
Other
Revenue
Net revenue	$ 2,356	$ 1,016