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Share-Based Compensation (Narrative) (Details) - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended 9 Months Ended
Oct. 29, 2016
Oct. 31, 2015
Oct. 29, 2016
Oct. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Allocated Share-based Compensation Expense $ 1.6 $ 1.8 $ 6.0 $ 5.4
Shares of common stock issued during the period 7,267 14,216 415,701 379,058
Performance Share Plan Cash Based Awards [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Allocated Share-based Compensation Expense $ 0.4 $ 1.5 $ 2.1 $ 5.7
Restricted Stock [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of restricted shares granted 6,500 8,000 357,100 301,421
Weighted-average grant date fair value of restricted share grants $ 25.18 $ 33.14 $ 26.54 $ 30.19
Performance share units        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Weighted-average grant date fair value of restricted share grants     $ 26.64 $ 30.12
Minimum pay out percentage     0.00%  
Maximum pay out percentage     200.00%  
Employee Stock Option [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of stock options granted 0 0 0 16,667
Restricted Stock Units for Non-Employee Directors [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of restricted shares granted 1,086 784 55,250 38,228
Weighted-average grant date fair value of restricted stock units to non-employee directors $ 24.98 $ 30.40 $ 21.78 $ 31.66
Four Year Vesting Period | Restricted Stock [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of restricted shares granted 6,500 8,000 357,100 288,921
Four Year Vesting Period | Employee Stock Option [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of stock options granted       8,333
Five Year Vesting Period | Restricted Stock [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of restricted shares granted       12,500
Five Year Vesting Period | Employee Stock Option [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of stock options granted       8,334
Three Year Vesting Period | Performance share units        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of restricted shares granted 0 0 159,000 177,921
Dividend Equivalent [Member] | Restricted Stock Units for Non-Employee Directors [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of restricted shares granted     3,050 2,229