GOODWILL AND OTHER INTANGIBLE ASSETS - Changes in Net Carrying Amount of Goodwill (Details) - USD ($) $ in Thousands	12 Months Ended
Oct. 31, 2018	Oct. 31, 2017
Changes in the net carrying amount of goodwill
Goodwill as of the beginning of the fiscal period	$ 205,029	$ 194,782
Goodwill acquired	20,739	8,921
Translation adjustments	(478)	1,326
Goodwill as of the end of the fiscal period	225,290	205,029
Professional
Changes in the net carrying amount of goodwill
Goodwill as of the beginning of the fiscal period	194,464	184,338
Goodwill acquired	20,739	8,921
Translation adjustments	(376)	1,205
Goodwill as of the end of the fiscal period	214,827	194,464
Residential
Changes in the net carrying amount of goodwill
Goodwill as of the beginning of the fiscal period	10,565	10,444
Goodwill acquired	0	0
Translation adjustments	(102)	121
Goodwill as of the end of the fiscal period	$ 10,463	$ 10,565

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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-Section 45
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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

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
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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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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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