Property, Plant and Equipment (Details) $ in Thousands	12 Months Ended
Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Property, plant and equipment
Property, plant, and equipment	$ 767,909	$ 284,747
Less: accumulated depreciation	(48,116)	(29,124)
Property, plant, and equipment, net	719,793	255,623
Capitalized interest	13,100	5,500
Depreciation expense	$ 19,000	6,900	$ 4,800
Number of hydrogen production plant	5
Land
Property, plant and equipment
Property, plant, and equipment	$ 1,772	1,165
Construction in progress
Property, plant and equipment
Property, plant, and equipment	575,141	169,415
Software, machinery and equipment
Property, plant and equipment
Property, plant, and equipment	169,633	112,068
Leasehold Improvements
Property, plant and equipment
Property, plant, and equipment	$ 21,363	$ 2,099

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Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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Amount of expense for allocation of cost of tangible asset over its useful life directly used in production of good and rendering of service.

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Amount of interest capitalized during the period.

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Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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