Comprehensive Income and Shareholders Equity (Details 1) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Jul. 31, 2012	Jul. 31, 2011	Jul. 31, 2012	Jul. 31, 2011	Oct. 31, 2011	Apr. 30, 2011	Oct. 31, 2010
Accumulated other comprehensive loss:
Foreign currency translation	$ (92.6)	$ 0.5	$ (92.6)	$ 0.5	$ (46.4)	$ 24.0	$ 0.3
Foreign currency translation, as adjusted		(23.5)		0.2
Income tax benefit (expense):
Changes in fair value of interest rate and other derivatives	0.3	(0.2)	0.4	(0.6)
Minimum pension liabilities adjustment	(0.7)		(2.4)	0.3
Scenario, Previously Reported [Member]
Accumulated other comprehensive loss:
Foreign currency translation		44.8		44.8		68.3	44.6
Foreign currency translation, as adjusted		(23.5)		0.2
Restatement Adjustment [Member]
Accumulated other comprehensive loss:
Foreign currency translation		$ (44.3)		$ (44.3)		$ (44.3)	$ (44.3)