Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Aug. 31, 2016	Aug. 31, 2015	Aug. 31, 2016	Aug. 31, 2015
Revenue:
Appliance	$ 21,034	$ 22,288	$ 42,367	$ 45,970
Subscription	66,896	56,083	132,217	110,375
Total revenue	87,930	78,371	174,584	156,345
Cost of revenue	20,240	15,935	40,481	31,901
Gross profit	67,690	62,436	134,103	124,444
Operating expenses:
Research and development	18,446	17,502	37,653	35,502
Sales and marketing	32,144	34,470	63,474	68,602
General and administrative	10,969	10,770	21,741	21,468
Total operating expenses	61,559	62,742	122,868	125,572
Income (loss) from operations	6,131	(306)	11,235	(1,128)
Other income (expense), net	1,515	97	2,505	(471)
Income (loss) before income taxes	7,646	(209)	13,740	(1,599)
Provision for income taxes	(5,209)	(2,030)	(8,519)	(4,472)
Net income (loss)	$ 2,437	$ (2,239)	$ 5,221	$ (6,071)
Net income (loss) per share:
Basic (in usd per share)	$ 0.05	$ (0.04)	$ 0.10	$ (0.11)
Diluted (in usd per share)	$ 0.05	$ (0.04)	$ 0.10	$ (0.11)
Weighted-average shares used to compute net income (loss) per share:
Basic (in shares)	52,265	53,270	52,275	53,133
Diluted (in shares)	53,321	53,270	53,088	53,133