Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 30, 2020	Nov. 01, 2019	Oct. 30, 2020	Nov. 01, 2019
Income Statement [Abstract]
Net revenue	$ 141,641	$ 141,332	$ 421,298	$ 410,779
Cost of revenue	59,613	61,568	182,422	188,004
Gross margin	82,028	79,764	238,876	222,775
Research and development	27,608	24,095	75,790	71,600
Sales and marketing	34,810	40,726	107,886	116,966
General and administrative	24,508	25,078	73,824	73,862
Total operating expenses	86,926	89,899	257,500	262,428
Operating loss	(4,898)	(10,135)	(18,624)	(39,653)
Interest and other, net	(79)	(1,257)	944	961
Loss before income taxes	(4,977)	(11,392)	(17,680)	(38,692)
Income tax benefit	(1,369)	(3,484)	(5,309)	(12,254)
Net loss	$ (3,608)	$ (7,908)	$ (12,371)	$ (26,438)
Loss per common share (basic and diluted) (usd per share)	$ (0.04)	$ (0.10)	$ (0.15)	$ (0.33)
Weighted-average common shares outstanding (basic and diluted) (in shares)	81,474	80,518	81,276	80,553