Annual report pursuant to Section 13 and 15(d)

Property and Equipment, Net of Accumulated Depreciation (Details)

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Property and Equipment, Net of Accumulated Depreciation (Details) (USD $)
In Millions
12 Months Ended
May 31, 2011
May 31, 2010
May 31, 2009
Components of property and equipment, at cost      
Land and improvements $ 7.0 $ 5.8  
Buildings and improvements 95.2 82.5  
Data processing equipment 204.6 186.8  
Software 231.2 182.6  
Furniture, fixtures, and equipment 152.0 147.1  
Leasehold improvements 93.3 91.4  
Construction in progress 20.9 17.9  
Total property and equipment, gross 804.2 714.1  
Less: Accumulated depreciation and amortization 495.5 444.8  
Property and equipment, net of accumulated depreciation 308.7 269.3  
Property and Equipment, Net of Accumulated Depreciation (Textuals) [Abstract]      
Depreciation expense $ 68.4 $ 65.4 $ 64.8