Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 29, 2017	Jul. 30, 2016	Jul. 29, 2017	Jul. 30, 2016
Income Statement [Abstract]
Net sales	$ 1,221,301	$ 1,203,155	$ 2,518,088	$ 2,515,730
Cost of sales (exclusive of depreciation expense shown separately below)	728,801	716,732	1,501,313	1,511,626
Gross margin	492,500	486,423	1,016,775	1,004,104
Selling and administrative expenses	415,154	416,746	831,126	842,149
Depreciation expense	29,386	30,757	57,981	60,476
Operating profit	47,960	38,920	127,668	101,479
Interest expense	(1,619)	(1,494)	(2,628)	(2,128)
Other income (expense)	435	(406)	(82)	358
Income before income taxes	46,776	37,020	124,958	99,709
Income tax expense	17,656	14,305	44,326	38,335
Net income	$ 29,120	$ 22,715	$ 80,632	$ 61,374
Earnings per common share
Earnings per common share - basic (in dollars per share)	$ 0.68	$ 0.51	$ 1.84	$ 1.32
Earnings per common share - diluted (in dollars per share)	$ 0.67	$ 0.50	$ 1.83	$ 1.31
Weighted-average common shares outstanding:
Basic	43,136	44,402	43,749	46,434
Dilutive effect of share-based awards	428	612	373	494
Diluted	43,564	45,014	44,122	46,928
Cash dividends declared per common share	$ 0.25	$ 0.21	$ 0.50	$ 0.42