Inventories - Schedule of Inventories (Detail) - USD ($) $ in Thousands	Apr. 30, 2017	Oct. 31, 2016
Inventory Disclosure [Abstract]
Raw materials and component parts	$ 113,851	$ 85,802
Work-in-process	49,889	36,681
Finished goods	152,025	134,602
Inventories - gross	315,765	257,085
Obsolescence and other reserves	(33,959)	(29,324)
LIFO reserve	(6,000)	(7,400)
Inventories - net	$ 275,806	$ 220,361

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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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