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Post Retirement Benefit Plans - Schedule of Other Comprehensive Income Included in Financial Statement (Detail) (USD $) In Millions, unless otherwise specified	Oct. 31, 2013	Oct. 31, 2012
Compensation And Retirement Disclosure [Abstract]
Unrecognized net actuarial gain	$ 0.5	$ 0.9
Unrecognized prior service credit	9.0	10.7
Accumulated other comprehensive income	$ 9.5	$ 11.6

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- Details

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- Definition

After tax total of net gain (loss), prior service cost (credit), and transition assets (obligations), as well as minimum pension liability if still remaining, included in accumulated other comprehensive income associated with a defined benefit pension or other postretirement plan(s).

+ References

No definition available.

+ Details

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- Definition

After tax net amount of gain (loss) that are not yet recognized as a component of net periodic benefit cost, and that are recognized as increases (decreases) in other comprehensive income as they arise.

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No definition available.

+ Details

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- Definition

Amount after tax of cost (credit) due to benefit changes attributable to plan participants' prior service pursuant to a plan amendment or a plan initiation, which has not yet been recognized as a component of net periodic benefit cost.

+ References

No definition available.

+ Details

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