Goodwill and Other Intangible Assets, Net - Changes in Net Carrying Amount of Goodwill (Details) $ in Thousands	3 Months Ended
Jan. 31, 2020 USD ($)
Changes in the net carrying amount of goodwill
Goodwill, beginning balance	$ 362,253
Translation adjustments	(117)
Goodwill, ending balance	362,136
Operating Segments \| Professional
Changes in the net carrying amount of goodwill
Goodwill, beginning balance	350,250
Translation adjustments	(116)
Goodwill, ending balance	350,134
Operating Segments \| Residential
Changes in the net carrying amount of goodwill
Goodwill, beginning balance	10,469
Translation adjustments	(1)
Goodwill, ending balance	10,468
Other
Changes in the net carrying amount of goodwill
Goodwill, beginning balance	1,534
Translation adjustments	0
Goodwill, ending balance	$ 1,534

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
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=99380562&loc=d3e13770-109266

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- Definition

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

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

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