Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Feb. 03, 2017	Jan. 29, 2016	Jan. 30, 2015
Income Statement [Abstract]
Net revenue	$ 429,502	$ 339,522	$ 262,130
Cost of revenue	212,599	183,809	144,846
Gross margin	216,903	155,713	117,284
Research and development	71,030	69,598	45,092
Sales and marketing	124,950	111,978	85,046
General and administrative	86,876	80,145	48,239
Total operating expenses	282,856	261,721	178,377
Operating loss	(65,953)	(106,008)	(61,093)
Interest and other, net	2,476	(6,569)	(142)
Loss before income taxes	(63,477)	(112,577)	(61,235)
Income tax benefit	(25,264)	(40,196)	(22,745)
Net loss	$ (38,213)	$ (72,381)	$ (38,490)
Net loss per common share, basic and diluted (usd per share)	$ (0.49)	$ (1.03)	$ (0.55)
Weighted average common shares outstanding, basic and diluted (in shares)	77,635	70,000	70,000