Goodwill and Other Intangible Assets - Summary of Changes in Carrying Amount of Goodwill (Detail) $ in Thousands	9 Months Ended
Jul. 31, 2020 USD ($)
Goodwill [Line Items]
Beginning balance	$ 1,614,739
Acquisitions	76,047
Currency effect	11,128
Ending balance	1,701,914
Industrial Precision Solutions [Member]
Goodwill [Line Items]
Beginning balance	411,461
Currency effect	6,088
Ending balance	417,549
Advanced Technology Solutions [Member]
Goodwill [Line Items]
Beginning balance	1,203,278
Acquisitions	76,047
Currency effect	5,040
Ending balance	$ 1,284,365

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(10)(1))
-URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
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-Section 45
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