Inventories - Schedule of Inventories (Detail) - USD ($) $ in Millions	Apr. 30, 2024	Oct. 31, 2023
Inventory Disclosure [Abstract]
Chassis	$ 109.1	$ 122.2
Raw materials & parts	205.6	224.3
Work in process	256.0	274.1
Finished products	67.9	46.8
Inventory, Gross, Total	638.6	667.4
Less: reserves	(8.2)	(9.7)
Total inventories, net	$ 630.4	$ 657.7

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Amount before valuation and LIFO reserves of completed merchandise or goods expected to be sold within one year or operating cycle, if longer.

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Gross amount, as of the balance sheet date, of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process.

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Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.

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Amount before valuation and LIFO reserves of raw materials expected to be sold, or consumed within one year or operating cycle, if longer.

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Amount of valuation reserve for inventory.

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Amount before valuation and LIFO reserves of merchandise or goods in the production process expected to be completed within one year or operating cycle, if longer.

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Gross amount of components used by the entity which are bought from another entity rather than produced by the entity.

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