Commitments and Contingencies - Additional Information (Detail) - USD ($) $ in Millions	9 Months Ended		12 Months Ended
	Jul. 31, 2024	Jul. 31, 2023	Oct. 31, 2023
Loss Contingencies [Line Items]
Contingent liability under purchase agreements for future chassis inventory purchases	$ 19.4		$ 8.8
Repurchase agreement	2 years
Represents the gross value of all vehicles under repurchase agreements	$ 381.0		490.1
Aggregate amount of indebtedness which the Company is a party to through guarantee agreements	$ 22.9		27.2
Guarantee agreement	5 years
Loss on litigation settlements		$ 11.5
Additional loss on litigation settlements		$ 2.2
Maximum [Member]
Loss Contingencies [Line Items]
Contingent liability under purchase agreements for future chassis inventory purchases	$ 38.4		25.9
Estimated loss exposure under contract	$ 4.0		$ 5.4