Goodwill and Other Intangible Assets - Summary of Changes in Carrying Amount of Goodwill (Detail) $ in Thousands	6 Months Ended
Apr. 30, 2020 USD ($)
Goodwill [Line Items]
Beginning balance	$ 1,614,739
Currency effect	(3,399)
Ending balance	1,611,340
Industrial Precision Solutions [Member]
Goodwill [Line Items]
Beginning balance	411,461
Currency effect	(1,954)
Ending balance	409,507
Advanced Technology Solutions [Member]
Goodwill [Line Items]
Beginning balance	1,203,278
Currency effect	(1,445)
Ending balance	$ 1,201,833

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://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=77989000&loc=SL49117168-202975

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
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Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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-SubTopic 20
-Section 50
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