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Share-Based Compensation (Narrative) (Details) - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended 6 Months Ended
Aug. 04, 2018
Jul. 29, 2017
Aug. 04, 2018
Jul. 29, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Allocated Share-based Compensation Expense $ 4.5 $ 3.1 $ 8.1 $ 5.8
Shares of common stock issued during the period 17,526 (12,472) 273,531 241,886
Restricted Stock        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of shares granted 39,142 4,492 333,833 356,312
Weighted-average grant date fair value of grants $ 34.33 $ 27.83 $ 32.07 $ 26.91
Performance share units        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of shares granted     155,000 169,500
Weighted-average grant date fair value of grants     $ 31.84 $ 26.90
Restricted Stock Units for Non-Employee Directors [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of shares granted 37,167 45,830 37,948 46,712
Weighted-average grant date fair value of grants $ 34.33 $ 27.84 $ 34.30 $ 27.81
Restricted stock unit dividend equivalent 747 910 1,528 1,792
One year cliff-vesting period | Restricted Stock        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of shares granted 3,642   3,642 4,492
Three year graded-vesting period | Restricted Stock        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of shares granted 35,500   320,691  
Four year cliff-vesting period | Restricted Stock        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of shares granted   339,820 9,500  
Four year graded-vesting period | Restricted Stock        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of shares granted       12,000
Minimum | Performance share units        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Pay out percentage     0.00%  
Maximum | Performance share units        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Pay out percentage     200.00%