Stock-Based Compensation (Total Stock-Based Compensation Recognized In The Consolidated Statements Of Earnings) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 29, 2016	Oct. 31, 2015	Oct. 29, 2016	Oct. 31, 2015
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation	$ 20,284	$ 15,692	$ 56,489	$ 45,573
Cost of Goods Sold [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation	9,569	7,342	25,677	21,824
Selling, General and Administrative Expenses [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation	$ 10,715	$ 8,350	$ 30,812	$ 23,749