Derivative Financial Instruments Designated as Cash Flow Hedges (Details) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Apr. 30, 2012 NrCounterparty	Apr. 30, 2011
Derivative Financial Instruments Designated as Cash Flow Hedges
Loss reclassified to interest expense on derivative financial instruments designated as cash flow hedges	$ 0.2	$ 0.2
Unamortized loss on interest rate lock	2.4
Loss expected to be reclassified as interest expense on derivative financial instruments designated as cash flow hedges, over the next twelve months	0.4
Other Derivative Financial Instruments not Designated for Hedge Accounting
Number of counterparties of foreign exchange contracts of other derivative financial instruments not designated for hedge accounting (as a number)	5
Notional amount of foreign exchange contracts of other derivative financial instruments not designated for hedge accounting	17.8
Number of stock index futures counterparties of other derivative financial instruments not designated for hedge accounting (as a number)	1
Notional amount of stock index futures contracts of other derivative financial instruments not designated for hedge accounting	77.6
Number of commodity futures counterparties of other derivative financial instruments not designated for hedge accounting (as a number)	1
Notional amount of commodity futures contracts of other derivative financial instruments not designated for hedge accounting	$ 18.1