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Goodwill and Other Intangible Assets - Summary of Intangible Assets Subject to Amortization (Detail) - USD ($) $ in Thousands | Jul. 31, 2018 | Oct. 31, 2017
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Finite Lived Intangible Assets [Line Items] |  |
Carrying Amount | $ 746,423 | $ 736,924
Accumulated Amortization | 231,580 | 189,744
Net Book Value | 514,843 | 547,180
Customer Relationships [Member] |  |
Finite Lived Intangible Assets [Line Items] |  |
Carrying Amount | 482,351 | 480,536
Accumulated Amortization | 129,563 | 102,033
Net Book Value | 352,788 | 378,503
Patent/Technology Costs [Member] |  |
Finite Lived Intangible Assets [Line Items] |  |
Carrying Amount | 154,533 | 150,581
Accumulated Amortization | 57,498 | 48,669
Net Book Value | 97,035 | 101,912
Trade Names [Member] |  |
Finite Lived Intangible Assets [Line Items] |  |
Carrying Amount | 96,588 | 93,281
Accumulated Amortization | 33,259 | 28,366
Net Book Value | 63,329 | 64,915
Non-compete Agreements [Member] |  |
Finite Lived Intangible Assets [Line Items] |  |
Carrying Amount | 11,563 | 11,142
Accumulated Amortization | 9,873 | 9,298
Net Book Value | 1,690 | 1,844
Other [Member] |  |
Finite Lived Intangible Assets [Line Items] |  |
Carrying Amount | 1,388 | 1,384
Accumulated Amortization | 1,387 | 1,378
Net Book Value | $ 1 | $ 6

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