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Segment Disclosure - Revenues Related to Operations by Geographic Areas (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Apr. 30, 2018 | Apr. 30, 2017 | Apr. 30, 2018 | Apr. 30, 2017
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Consolidated | $ 776,836 | $ 680,069 | $ 1,546,262 | $ 1,332,855
United States |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Consolidated | 376,636 | 350,489 | 761,210 | 669,908
Europe |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Consolidated | 97,014 | 78,395 | 182,479 | 154,068
Japan |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Consolidated | 70,435 | 57,206 | 138,824 | 118,904
Asia-Pacific and Other |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Consolidated | $ 232,751 | $ 193,979 | $ 463,749 | $ 389,975

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