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Stock And Stock-Based Incentive Plans (Outstanding Stock Options) (Details) (USD $)
In Thousands, except Per Share data, unless otherwise specified
 6 Months Ended
Aug. 31, 2014
Feb. 28, 2014
$11.43 [Member]
    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Range of Exercise Prices, lower range $ 11.43  
Options Outstanding, Number of Shares 554  
Options Outstanding, Weighted Average Remaining Contractual Life (Years) 1 year 7 months 6 days  
Options Outstanding, Weighted Average Exercise Price $ 11.43  
Options Exercisable, Number of Shares 554  
Options Exercisable, Weighted Average Exercise Price $ 11.43  
$13.19 To $19.82 [Member]
    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Range of Exercise Prices, lower range $ 13.19  
Range of Exercise Prices, upper range $ 19.82  
Options Outstanding, Number of Shares 488  
Options Outstanding, Weighted Average Remaining Contractual Life (Years) 0 years 10 months 24 days  
Options Outstanding, Weighted Average Exercise Price $ 15.57  
Options Exercisable, Number of Shares 488  
Options Exercisable, Weighted Average Exercise Price $ 15.57  
$19.98 To $25.39 [Member]
    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Range of Exercise Prices, lower range $ 19.98  
Range of Exercise Prices, upper range $ 25.39  
Options Outstanding, Number of Shares 1,288  
Options Outstanding, Weighted Average Remaining Contractual Life (Years) 2 years 8 months 12 days  
Options Outstanding, Weighted Average Exercise Price $ 25.19  
Options Exercisable, Number of Shares 1,288  
Options Exercisable, Weighted Average Exercise Price $ 25.19  
$28.81 To $32.69 [Member]
    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Range of Exercise Prices, lower range $ 28.81  
Range of Exercise Prices, upper range $ 32.69  
Options Outstanding, Number of Shares 3,511  
Options Outstanding, Weighted Average Remaining Contractual Life (Years) 4 years 2 months 12 days  
Options Outstanding, Weighted Average Exercise Price $ 32.12  
Options Exercisable, Number of Shares 2,181  
Options Exercisable, Weighted Average Exercise Price $ 32.22  
$33.11 To $49.25 [Member]
    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Range of Exercise Prices, lower range $ 33.11  
Range of Exercise Prices, upper range $ 49.25  
Options Outstanding, Number of Shares 3,573  
Options Outstanding, Weighted Average Remaining Contractual Life (Years) 6 years 1 month 6 days  
Options Outstanding, Weighted Average Exercise Price $ 43.89  
Options Exercisable, Number of Shares 468  
Options Exercisable, Weighted Average Exercise Price $ 42.21  
Stock Option [Member]
    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Options Outstanding, Number of Shares 9,414  
Options Outstanding, Weighted Average Remaining Contractual Life (Years) 4 years 4 months 24 days  
Options Outstanding, Weighted Average Exercise Price $ 33.56 $ 27.02
Options Exercisable, Number of Shares 4,979  
Options Exercisable, Weighted Average Exercise Price $ 27.40