Weichai Transactions (Details) - USD ($)		3 Months Ended		9 Months Ended
	Mar. 22, 2023	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Aug. 30, 2024
Subsidiary, Sale of Stock [Line Items]
Term of collaborative arrangement (in years)	3 years
Related Party
Subsidiary, Sale of Stock [Line Items]
Purchased inventory		$ 3,100,000	$ 13,200,000	$ 35,400,000	$ 19,900,000
Shareholder’s Loan Agreement | Subordinated Debt
Subsidiary, Sale of Stock [Line Items]
Debt instrument, face amount						$ 105,000,000.0