Inventories - Schedule of Inventories (Detail) - USD ($) $ in Thousands	Apr. 30, 2020	Oct. 31, 2019
Inventory Disclosure [Abstract]
Finished goods	$ 197,276	$ 183,973
Raw materials and component parts	107,065	102,044
Work-in-process	55,611	42,904
Inventories - gross	359,952	328,921
Obsolescence and other reserves	(42,528)	(39,377)
LIFO reserve	(5,306)	(6,145)
Inventories - net	$ 312,118	$ 283,399

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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 by which inventory stated at last-in first-out (LIFO) is less than (in excess of) inventory stated at other inventory cost methods.

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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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Gross amount of unprocessed materials to be used in manufacturing or production process and supplies that will be consumed.

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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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