Quarterly report pursuant to Section 13 or 15(d)

Intangible Assets (Details)

 v2.3.0.11
Intangible Assets (Details) (USD $)
In Millions
 3 Months Ended 6 Months Ended
Aug. 31, 2011
Aug. 31, 2010
Aug. 31, 2011
Aug. 31, 2010
Feb. 28, 2011
Amortizable intangible assets:          
Amortizable intangible assets, Gross Carrying Amount $ 87.0   $ 87.0   $ 85.8
Amortizable intangible assets, Net Carrying Amount 62.9   62.9   64.1
Nonamortizable intangible assets:          
Nonamortizable intangible assets, Net Carrying Amount 832.5   832.5   822.2
Total intangible assets, net, Net Carrying Amount 895.4   895.4   886.3
Estimated amortization expense          
2012     2.5    
2013     4.9    
2014     4.9    
2015     4.9    
2016     5.0    
2017     4.7    
Thereafter     36.0    
Intangible Assets (Textuals)          
Amortization expense for intangible assets 1.3 1.4 2.5 2.8  
Customer relationships [Member]
          
Amortizable intangible assets:          
Amortizable intangible assets, Gross Carrying Amount 83.1   83.1   83.2
Amortizable intangible assets, Net Carrying Amount 61.6   61.6   64.1
Other [Member]
          
Amortizable intangible assets:          
Amortizable intangible assets, Gross Carrying Amount 3.9   3.9   2.6
Amortizable intangible assets, Net Carrying Amount 1.3   1.3   0
Other [Member]
          
Nonamortizable intangible assets:          
Nonamortizable intangible assets, Net Carrying Amount 5.7   5.7   5.7
Trademarks [Member]
          
Nonamortizable intangible assets:          
Nonamortizable intangible assets, Net Carrying Amount $ 826.8   $ 826.8   $ 816.5