Stock-Based Compensation (Recognized Stock-Based Compensation) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 28, 2017	Oct. 29, 2016	Oct. 28, 2017	Oct. 29, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation	$ 22,218	$ 20,284	$ 64,937	$ 56,489
Restricted stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation	11,207	10,108	32,927	28,657
Performance awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation	10,215	9,423	29,668	25,661
Employee stock purchase plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation	$ 796	$ 753	$ 2,342	$ 2,171