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Share-Based Compensation (Narrative) (Details) - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended 9 Months Ended
Nov. 03, 2018
Oct. 28, 2017
Nov. 03, 2018
Oct. 28, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Allocated Share-based Compensation Expense $ 3.6 $ 2.6 $ 11.6 $ 8.4
Shares of common stock issued during the period 17,225 9,832 290,756 251,718
Restricted Stock        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of shares granted 45,000 25,000 378,833 381,312
Weighted-average grant date fair value of grants $ 33.52 $ 27.13 $ 32.24 $ 26.92
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     38,728 47,550
Weighted-average grant date fair value of grants $ 35.66 $ 30.68 $ 34.33 $ 27.86
Restricted stock unit dividend equivalent 780 838 2,308 2,630
One year cliff-vesting period | Restricted Stock        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of shares granted     3,642 4,492
Four year cliff-vesting period | Restricted Stock        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of shares granted     9,500 364,820
Three year graded-vesting period | Restricted Stock        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of shares granted     365,691  
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%