Guarantees, Commitments and Contingencies (Details) - USD ($) $ in Millions	9 Months Ended	12 Months Ended
	Sep. 30, 2024	Dec. 31, 2023
Commitments And Contingencies [Line Items]
Guarantee term	10 days
Sale price of vehicles with outstanding guarantee	$ 213.8	$ 142.8
Carrying amount of the liability	1.6	1.2
Accrued Other Liabilities
Commitments And Contingencies [Line Items]
Recognized probable loss contingency	$ 1.8	$ 1.8