Condensed Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 29, 2016	Oct. 31, 2015	Oct. 29, 2016	Oct. 31, 2015
Income Statement [Abstract]
Net revenues	$ 549,328	$ 532,411	$ 1,548,165	$ 1,461,798
Cost of goods sold	373,509	341,661	1,065,032	933,367
Gross profit	175,819	190,750	483,133	528,431
Selling, general and administrative expenses	160,433	145,874	457,207	410,103
Income from operations	15,386	44,876	25,926	118,328
Interest expense—net	11,091	11,003	32,528	24,058
Income (loss) before income taxes	4,295	33,873	(6,602)	94,270
Income tax expense (benefit)	1,778	13,163	(2,567)	36,469
Net income (loss)	$ 2,517	$ 20,710	$ (4,035)	$ 57,801
Weighted-average shares used in computing basic net income (loss) per share	40,730,059	40,282,734	40,653,091	40,080,843
Basic net income (loss) per share	$ 0.06	$ 0.51	$ (0.10)	$ 1.44
Weighted-average shares used in computing diluted net income (loss) per share	40,926,450	42,413,657	40,653,091	42,237,967
Diluted net income (loss) per share	$ 0.06	$ 0.49	$ (0.10)	$ 1.37