Stock-Based Compensation (Recognized Stock-Based Compensation) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 29, 2017	Jul. 30, 2016	Jul. 29, 2017	Jul. 30, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation	$ 22,481	$ 18,490	$ 42,719	$ 36,206
Restricted stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation	11,019	9,484	21,720	18,549
Performance awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation	10,670	8,290	19,453	16,239
Employee stock purchase plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation	$ 792	$ 716	$ 1,546	$ 1,418