Description of the Business, Basis of Presentation and Summary of Significant Accounting Policies (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended			1 Months Ended
	May 31, 2013	May 31, 2012	May 31, 2011	May 31, 2013 Minimum [Member]	May 31, 2013 Maximum [Member]
Description of the Business, Basis of Presentation and Summary of Significant Accounting Policies (Details) [Line Items]
Number of Countries in which Entity Operates	140
Restricted Cash (in Dollars)	$ 1.0	$ 1.0
Increase Decrease In Inventory Reserve (in Dollars)		17.9
Capitalized Computer Software, Net (in Dollars)	50.7	57.2
Capitalized Computer Software, Amortization (in Dollars)	31.2	27.6	25.8
Asset Impairment Charges (in Dollars)	4.0
Finite-Lived Intangible Asset, Useful Life	9 years			5 years	20 years
Accrual for Taxes Other than Income Taxes (in Dollars)		19.7
Deferred Advertising Costs (in Dollars)	$ 4.5	$ 4.8