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Goodwill and Intangible Assets - Summary of Intangible Assets Subject to Amortization (Detail) - USD ($) $ in Thousands | Oct. 31, 2017 | Oct. 31, 2016
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Finite Lived Intangible Assets [Line Items] |  |
Carrying Amount | $ 736,924 | $ 401,659
Accumulated Amortization | 189,744 | 141,357
Net Book Value | 547,180 | 260,302
Customer Relationships [Member] |  |
Finite Lived Intangible Assets [Line Items] |  |
Carrying Amount | 480,536 | 207,493
Accumulated Amortization | 102,033 | 71,608
Net Book Value | 378,503 | 135,885
Patent/Technology Costs [Member] |  |
Finite Lived Intangible Assets [Line Items] |  |
Carrying Amount | 150,581 | 97,640
Accumulated Amortization | 48,669 | 37,873
Net Book Value | 101,912 | 59,767
Trade Names [Member] |  |
Finite Lived Intangible Assets [Line Items] |  |
Carrying Amount | 93,281 | 85,271
Accumulated Amortization | 28,366 | 22,140
Net Book Value | 64,915 | 63,131
Noncompete Agreements [Member] |  |
Finite Lived Intangible Assets [Line Items] |  |
Carrying Amount | 11,142 | 9,855
Accumulated Amortization | 9,298 | 8,347
Net Book Value | 1,844 | 1,508
Other [Member] |  |
Finite Lived Intangible Assets [Line Items] |  |
Carrying Amount | 1,384 | 1,400
Accumulated Amortization | 1,378 | 1,389
Net Book Value | $ 6 | $ 11

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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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