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Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Jan. 31, 2015 | Oct. 31, 2015 | Oct. 31, 2014 | Oct. 31, 2013 | Oct. 31, 2012
Income Tax [Line Items] |  |  |  |  |
Earnings before income taxes of domestic operations |  | $ 140,044 | $ 184,894 | $ 164,702 |
Additional tax benefit relating to retroactive reinstatement of research credit | $ 1,786 | 2,486 |  | 1,700 |
Unrecognized tax benefits |  | 145 | 310 | 1,070 |
Earnings before income taxes of international operations |  | 160,818 | 167,619 | 146,421 |
Undistributed earnings aggregated |  | 712,913 | 622,914 |  |
Total unrecognized tax benefits |  | 6,258 | 5,812 | 5,717 | $ 3,140
Total unrecognized tax benefits impact the effective tax rate |  | 5,650 | 5,175 |  |
Accrued interest expense related to unrecognized tax benefits |  | 2,664 | 2,025 |  |
Tax credit carryforwards |  | 2,881 |  |  |
Tax credit carryforwards which will expire in 2015 through 2017 |  | 135 |  |  |
Indefinite tax credit carryforward amount |  | 2,746 |  |  |
Operating loss carryforwards |  | 73,927 |  |  |
Indefinite carryforward period |  | 14,323 |  |  |
Net change in the valuation allowance |  | 904 | $ 2,009 |  |
Valuation allowance relates to tax credits and loss carryforwards |  | 6,768 |  |  |
Foreign [Member] |  |  |  |  |
Income Tax [Line Items] |  |  |  |  |
Unrecognized tax benefits |  |  |  | $ 900 |
Operating loss carryforwards |  | 14,323 |  |  |
Federal [Member] |  |  |  |  |
Income Tax [Line Items] |  |  |  |  |
Operating loss carryforwards |  | 3,629 |  |  |
State [Member] |  |  |  |  |
Income Tax [Line Items] |  |  |  |  |
Operating loss carryforwards |  | $ 70,298 |  |  |

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