Goodwill and Intangible Assets - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
Oct. 31, 2020	Oct. 31, 2019	Oct. 31, 2018
Goodwill [Line Items]
Goodwill accumulated impairment loss	$ 232,789	$ 232,789
Intangible assets, amortization expense	56,979	54,790	$ 55,448
Advanced Technology Solutions
Goodwill [Line Items]
Goodwill accumulated impairment loss	229,173	229,173
Industrial Coating Systems
Goodwill [Line Items]
Goodwill accumulated impairment loss	$ 3,616	$ 3,616

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
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