CONSOLIDATED INCOME STATEMENTS (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Feb. 28, 2015	Feb. 28, 2014	Feb. 28, 2013
Revenues:
Products	$ 209,895	$ 195,549	$ 163,022
Application subscriptions and other services	40,711	40,354	17,557
Total revenues	250,606	235,903	180,579
Cost of revenues:
Products	144,911	139,205	113,780
Application subscriptions and other services	18,291	16,767	9,906
Total cost of revenues	163,202	155,972	123,686
Gross profit	87,404	79,931	56,893
Operating expenses:
Research and development	19,854	21,052	14,291
Selling	20,442	19,837	12,725
General and administrative	15,578	14,416	12,154
Intangible asset amortization	6,590	6,283	1,743
Total operating expenses	62,464	61,588	40,913
Operating income	24,940	18,343	15,980
Non-operating expense:
Interest expense, net	(72)	(365)	(487)
Other expense	(68)	(67)	(45)
Total non-operating expense	(140)	(432)	(532)
Income before income taxes	24,800	17,911	15,448
Income tax benefit (provision)	(8,292)	(6,108)	29,178
Net income	$ 16,508	$ 11,803	$ 44,626
Earnings per share:
Basic	$ 0.46	$ 0.34	$ 1.54
Diluted	$ 0.45	$ 0.33	$ 1.49
Shares used in computing earnings per share:
Basic	35,784	34,969	28,886
Diluted	36,530	36,023	29,982