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Goodwill and Intangible Assets - Summary of Intangible Assets Subject to Amortization (Detail) - USD ($) $ in Thousands | Oct. 31, 2019 | Oct. 31, 2018
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Finite Lived Intangible Assets [Line Items] |  |
Carrying Amount | $ 744,337 | $ 743,294
Accumulated Amortization | 298,762 | 243,553
Net Book Value | 445,575 | 499,741
Customer Relationships [Member] |  |
Finite Lived Intangible Assets [Line Items] |  |
Carrying Amount | 480,007 | 480,404
Accumulated Amortization | 173,996 | 137,640
Net Book Value | 306,011 | 342,764
Patent/Technology Costs [Member] |  |
Finite Lived Intangible Assets [Line Items] |  |
Carrying Amount | 154,735 | 153,602
Accumulated Amortization | 71,663 | 59,845
Net Book Value | 83,072 | 93,757
Trade Names [Member] |  |
Finite Lived Intangible Assets [Line Items] |  |
Carrying Amount | 96,655 | 96,433
Accumulated Amortization | 41,303 | 34,768
Net Book Value | 55,352 | 61,665
Non-compete Agreements [Member] |  |
Finite Lived Intangible Assets [Line Items] |  |
Carrying Amount | 11,540 | 11,469
Accumulated Amortization | 10,406 | 9,919
Net Book Value | 1,134 | 1,550
Other [Member] |  |
Finite Lived Intangible Assets [Line Items] |  |
Carrying Amount | 1,400 | 1,386
Accumulated Amortization | 1,394 | 1,381
Net Book Value | $ 6 | $ 5

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