Summary of Significant Accounting Policies (Details) $ in Millions	3 Months Ended	9 Months Ended
	Sep. 30, 2024 USD ($)	Sep. 30, 2024 USD ($)
Summary of Significant Accounting Policies
Term of clean Hydrogen production tax credit		10 years
Subsequent taxable years		4 years
Production Tax Credit, remaining duration		5 years
Clean Hydrogen Production Tax Credit (PTC) recorded under other assets	$ 3.3	$ 3.3
Fuel delivered to customers and related equipment
Summary of Significant Accounting Policies
Tax credit, reduction to cost of revenue	$ 1.6	$ 2.9