Note 12 - Income Taxes (Detail) - Unrecognized Tax Benefits (USD $) In Millions, unless otherwise specified	12 Months Ended
Oct. 31, 2012	Oct. 31, 2011
Unrecognized tax benefit	$ 26.8	$ 23.0
Gross increases—tax positions in current period	0.6	9.3
Decrease related to tax positions taken during a prior period	(16.2)
Settlements		(0.4)
Lapse of statute of limitations	(1.3)	(5.1)
Unrecognized tax benefit	$ 9.9	$ 26.8

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

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The gross amount of decreases 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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