Other Employee Benefit Plans (Details)
$ in Millions |
12 Months Ended |
|
Oct. 31, 2015
USD ($)
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Oct. 31, 2015
CAD
|
Oct. 31, 2014
USD ($)
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Oct. 31, 2014
CAD
|
Oct. 31, 2013
USD ($)
|
Oct. 31, 2013
CAD
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| Defined Contribution Pension Plan Canada |
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| Schedule of Defined Contribution Pension And Other Postretirement Plans Disclosure [Line Items] |
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| Maximum total employee and employer contribution percentage |
18.00%
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18.00%
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| Maximum total employee and employer contribution amount |
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CAD 25,370
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| Required employer contribution percent |
1.00%
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1.00%
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| Employer matching percentage for eligible employee contribution |
50.00%
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50.00%
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| Maximum employer annual contribution amount per employee |
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CAD 3,000
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| Employer matching contributions |
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CAD 4,300,000
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CAD 4,100,000
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CAD 3,900,000
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| Defined Contribution Profit Sharing Plan |
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| Schedule of Defined Contribution Pension And Other Postretirement Plans Disclosure [Line Items] |
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| Employer matching percentage for eligible employee contribution |
50.00%
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50.00%
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| Employer matching contributions | $ |
$ 4.7
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$ 4.5
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$ 4.0
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| Maximum employee contribution percentage of pre-tax compensation |
60.00%
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60.00%
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| Percentage of employee contribution with 50% employer matching contribution |
6.00%
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6.00%
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