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Goodwill and Intangible Assets - Summary of Intangible Assets Subject to Amortization (Detail) - USD ($) $ in Thousands | Oct. 31, 2018 | Oct. 31, 2017
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Finite Lived Intangible Assets [Line Items] |  |
Carrying Amount | $ 743,294 | $ 736,924
Accumulated Amortization | 243,553 | 189,744
Net Book Value | 499,741 | 547,180
Customer Relationships [Member] |  |
Finite Lived Intangible Assets [Line Items] |  |
Carrying Amount | 480,404 | 480,536
Accumulated Amortization | 137,640 | 102,033
Net Book Value | 342,764 | 378,503
Patent/Technology Costs [Member] |  |
Finite Lived Intangible Assets [Line Items] |  |
Carrying Amount | 153,602 | 150,581
Accumulated Amortization | 59,845 | 48,669
Net Book Value | 93,757 | 101,912
Trade Names [Member] |  |
Finite Lived Intangible Assets [Line Items] |  |
Carrying Amount | 96,433 | 93,281
Accumulated Amortization | 34,768 | 28,366
Net Book Value | 61,665 | 64,915
Noncompete Agreements [Member] |  |
Finite Lived Intangible Assets [Line Items] |  |
Carrying Amount | 11,469 | 11,142
Accumulated Amortization | 9,919 | 9,298
Net Book Value | 1,550 | 1,844
Other [Member] |  |
Finite Lived Intangible Assets [Line Items] |  |
Carrying Amount | 1,386 | 1,384
Accumulated Amortization | 1,381 | 1,378
Net Book Value | $ 5 | $ 6

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