Annual report pursuant to Section 13 and 15(d)

Commitments and Contingencies (Indemnification Liabilities) (Details Textual 1)

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Commitments and Contingencies (Indemnification Liabilities) (Details Textual 1) (USD $)
In Millions, unless otherwise specified
12 Months Ended 25 Months Ended 12 Months Ended 12 Months Ended
Feb. 28, 2013
Feb. 29, 2012
Feb. 28, 2011
Feb. 28, 2013
Feb. 28, 2013
Minimum [Member]
Feb. 28, 2013
Maximum [Member]
Feb. 28, 2013
Guarantee Obligations [Member]
Feb. 29, 2012
Guarantee Obligations [Member]
Feb. 28, 2011
Guarantee Obligations [Member]
Jan. 31, 2011
Guarantee Obligations [Member]
Feb. 28, 2013
Property Lease Guarantee [Member]
Loss Contingencies [Line Items]                      
Indemnification liabilities, fair value                   $ 26.1  
Indemnification loss                 26.1    
Cash payment upon partial settlement of guarantee obligation               3.1      
Net gains on CWAE Divestiture and related activities 6.9 0.5 83.7 91.1     7.1        
Indemnification liabilities             15.1 22.4      
Potential future payments             296.2       35.1
Amount subject to recovery from third parties under recourse provisions             281.9       0
Lease contract period                     through June 2021
Automatic renewal period for employment contracts         1 year indefinite          
Employment contracts, aggregate commitment for future compensation and severance 36.1     36.1              
Employment contracts, accrual for future compensation and severance $ 3.0     $ 3.0