Income Taxes (Schedule of Changes in Gross Unrecognized Tax Benefits) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
Oct. 31, 2012	Oct. 31, 2011
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Begining of the period	$ 27.4	$ 19.7
Increase (decrease) from prior year's UTB's	(1.0)	0
Increase from current year's UTB's	4.6	8.9
UTB (decrease) from tax authorities' settlements	(0.9)	0
UTB (decrease) from expiration of statute of limitations	(2.0)	(1.2)
Increase of unrecorded UTB's	0	0
End of the period	$ 28.1	$ 27.4

Unrecognized Tax Benefits, Increase Resulting from Unrecorded Unrecognized Tax Benefits

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- Definition

The gross amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns as of the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Unrecognized Tax Benefit

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The gross amount of decreases in unrecognized tax benefits resulting from settlements with taxing authorities.

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- Definition

The gross amount of increases in unrecognized tax benefits resulting from tax positions that have been or will be taken in the tax return for the current period, excluding amounts pertaining to examined tax returns.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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The gross amount of increases in unrecognized tax benefits resulting from tax positions taken in prior period tax returns, excluding amounts pertaining to examined tax returns.

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The gross amount of decreases in unrecognized tax benefits resulting from lapses of the applicable statutes of limitations.

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