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Goodwill and Other Intangible Assets - Summary of Intangible Assets Subject to Amortization (Detail) - USD ($) $ in Thousands | Apr. 30, 2018 | Oct. 31, 2017
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Finite Lived Intangible Assets [Line Items] |  |
Carrying Amount | $ 751,216 | $ 736,924
Accumulated Amortization | 219,738 | 189,744
Net Book Value | 531,478 | 547,180
Customer Relationships [Member] |  |
Finite Lived Intangible Assets [Line Items] |  |
Carrying Amount | 485,317 | 480,536
Accumulated Amortization | 121,602 | 102,033
Net Book Value | 363,715 | 378,503
Patent/Technology Costs [Member] |  |
Finite Lived Intangible Assets [Line Items] |  |
Carrying Amount | 155,854 | 150,581
Accumulated Amortization | 55,215 | 48,669
Net Book Value | 100,639 | 101,912
Trade Names [Member] |  |
Finite Lived Intangible Assets [Line Items] |  |
Carrying Amount | 96,994 | 93,281
Accumulated Amortization | 31,758 | 28,366
Net Book Value | 65,236 | 64,915
Non-compete Agreements [Member] |  |
Finite Lived Intangible Assets [Line Items] |  |
Carrying Amount | 11,659 | 11,142
Accumulated Amortization | 9,774 | 9,298
Net Book Value | 1,885 | 1,844
Other [Member] |  |
Finite Lived Intangible Assets [Line Items] |  |
Carrying Amount | 1,392 | 1,384
Accumulated Amortization | 1,389 | 1,378
Net Book Value | $ 3 | $ 6

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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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