Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2020	Aug. 02, 2019	Jul. 31, 2020	Aug. 02, 2019
Income Statement [Abstract]
Net revenue	$ 138,476	$ 136,605	$ 279,657	$ 269,447
Cost of revenue	59,900	63,595	122,809	126,436
Gross margin	78,576	73,010	156,848	143,011
Research and development	24,109	24,863	48,182	47,505
Sales and marketing	35,624	38,047	73,076	76,240
General and administrative	21,800	25,146	49,316	48,784
Total operating expenses	81,533	88,056	170,574	172,529
Operating loss	(2,957)	(15,046)	(13,726)	(29,518)
Interest and other, net	30	1,950	1,023	2,218
Loss before income taxes	(2,927)	(13,096)	(12,703)	(27,300)
Income tax benefit	(1,700)	(2,836)	(3,940)	(8,770)
Net loss	$ (1,227)	$ (10,260)	$ (8,763)	$ (18,530)
Loss per common share (basic and diluted) (usd per share)	$ (0.02)	$ (0.13)	$ (0.11)	$ (0.23)
Weighted-average common shares outstanding (basic and diluted) (in shares)	81,417	80,674	81,177	80,571