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Employee Benefit Plans - (Other Retirement Plans) - Additional Information (Detail) | 12 Months Ended
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Oct. 31, 2016 USD ($) | Oct. 31, 2016 CAD | Oct. 31, 2015 USD ($) | Oct. 31, 2014 USD ($)
Other Retirement Plans [Line Items] |  |  |  |
Deferred percentage of annual cash base compensation | 50.00% | 50.00% |  |
Deferred percentage of variable cash compensation | 100.00% | 100.00% |  |
Other Retirement Plans |  |  |  |
Other Retirement Plans [Line Items] |  |  |  |
Employer contribution | $ 53,400,000 |  | $ 40,000,000 | $ 23,800,000
Maximum pretax annual company contribution match per employee | $ 3,000 | CAD 4,000 |  |

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- Definition Deferred percentage of annual cash base compensation. + References No definition available. + Details
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- Definition Deferred percentage of variable cash compensation. + References No definition available. + Details
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- Definition Defined Contribution Plan, Maximum Annual Employer Contributions, Amount per Employee + References No definition available. + Details
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- Definition Retirement Plans [Line Items] + References No definition available. + Details
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- Definition The amount of payment into the fund established for purposes of making future disbursements to the individual in accordance with the terms and understanding of the deferred compensation arrangement. + References No definition available. + Details
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- Details
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