Consolidated Statements of Income - USD ($) $ in Thousands	12 Months Ended
	Jan. 28, 2017	Jan. 30, 2016	Jan. 31, 2015
Income Statement [Abstract]
Net revenues	$ 2,134,871	$ 2,109,006	$ 1,867,422
Cost of goods sold	1,455,084	1,356,314	1,176,648
Gross profit	679,787	752,692	690,774
Selling, general and administrative expenses	626,751	567,131	525,048
Income from operations	53,036	185,561	165,726
Interest expense—net	44,482	35,677	17,551
Income before income taxes	8,554	149,884	148,175
Income tax expense	3,153	58,781	57,173
Net income	$ 5,401	$ 91,103	$ 91,002
Weighted-average shares used in computing basic net income per share	40,691,483	40,190,448	39,457,491
Basic net income per share	$ 0.13	$ 2.27	$ 2.31
Weighted-average shares used in computing diluted net income per share	40,926,840	42,256,559	41,378,210
Diluted net income per share	$ 0.13	$ 2.16	$ 2.20