Goodwill and Other Intangible Assets, Net - Changes in Net Carrying Amount of Goodwill (Details) $ in Thousands	9 Months Ended
Jul. 31, 2020 USD ($)
Changes in the net carrying amount of goodwill
Goodwill, beginning balance	$ 362,253
Goodwill acquired	62,252
Purchase price allocation adjustment	(866)
Translation adjustments	589
Goodwill, ending balance	424,228
Operating Segments \| Professional
Changes in the net carrying amount of goodwill
Goodwill, beginning balance	350,250
Goodwill acquired	62,252
Purchase price allocation adjustment	(866)
Translation adjustments	560
Goodwill, ending balance	412,196
Operating Segments \| Residential
Changes in the net carrying amount of goodwill
Goodwill, beginning balance	10,469
Goodwill acquired	0
Purchase price allocation adjustment	0
Translation adjustments	29
Goodwill, ending balance	10,498
Other
Changes in the net carrying amount of goodwill
Goodwill, beginning balance	1,534
Goodwill acquired	0
Purchase price allocation adjustment	0
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://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

Reference 2: 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=120320667&loc=SL49117168-202975

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
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-URI http://asc.fasb.org/extlink&oid=99380562&loc=d3e13770-109266

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Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

+ References

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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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Amount of increase (decrease) from adjustments after acquisition date under purchase accounting of an asset representing the future economic benefits arising 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
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