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Goodwill and other intangible assets - Summary of Intangible Assets Subject to Amortization (Detail) - USD ($) $ in Thousands | Apr. 30, 2024 | Oct. 31, 2023
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Finite-Lived Intangible Assets [Line Items] |  |
Carrying Amount | $ 1,146,524 | $ 1,135,513
Accumulated Amortization | 504,149 | 462,769
Net Book Value | 642,375 | 672,744
Customer relationships |  |
Finite-Lived Intangible Assets [Line Items] |  |
Carrying Amount | 805,621 | 794,706
Accumulated Amortization | 314,848 | 287,585
Net Book Value | 490,773 | 507,121
Patent/technology costs |  |
Finite-Lived Intangible Assets [Line Items] |  |
Carrying Amount | 205,805 | 204,905
Accumulated Amortization | 123,333 | 112,994
Net Book Value | 82,472 | 91,911
Trade name |  |
Finite-Lived Intangible Assets [Line Items] |  |
Carrying Amount | 126,137 | 125,692
Accumulated Amortization | 57,307 | 52,488
Net Book Value | 68,830 | 73,204
Non-compete agreements |  |
Finite-Lived Intangible Assets [Line Items] |  |
Carrying Amount | 8,437 | 10,028
Accumulated Amortization | 8,137 | 9,521
Net Book Value | 300 | 507
Other |  |
Finite-Lived Intangible Assets [Line Items] |  |
Carrying Amount | 524 | 182
Accumulated Amortization | 524 | 181
Net Book Value | $ 0 | $ 1

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