Commitments and Contingencies - Additional Information (Detail) - USD ($)	3 Months Ended		12 Months Ended
	Apr. 30, 2023	Jan. 31, 2023	Oct. 31, 2022
Loss Contingencies [Line Items]
Contingent liability under purchase agreements for future chassis inventory purchases		$ 21,300,000	$ 11,900,000
Repurchase agreement		2 years
Represents the gross value of all vehicles under repurchase agreements		$ 363,800,000	333,800,000
Cash payment to plaintiff	$ 11,500,000
Loss on litigation settlements		1,000,000.0
Maximum [Member]
Loss Contingencies [Line Items]
Estimated loss exposure under contract		$ 7,300,000	$ 8,700,000