CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Feb. 28, 2019	Feb. 28, 2018	Feb. 28, 2017
Revenues:
Revenues	$ 363,800	$ 365,912	$ 351,102
Cost of revenues:
Cost of revenues	216,036	215,022	207,750
Gross profit	147,764	150,890	143,352
Operating expenses:
Research and development	27,656	25,761	22,005
Selling and marketing	49,892	50,096	49,044
General and administrative	31,070	52,089	57,119
Restructuring (see Note 11)	8,015
Intangible asset amortization	11,436	14,989	15,061
Total operating expenses	128,069	142,935	143,229
Operating income	19,695	7,955	123
Non-operating income (expense):
Investment income	5,258	2,256	1,691
Interest expense	(16,726)	(10,280)	(9,896)
Gain on legal settlement (see Note 19)	18,333	28,333
Loss on extinguishment of debt (see Note 10)	(2,033)
Other income (expense), net	(672)	445	(101)
Total non-operating income (expense)	4,160	20,754	(8,306)
Income (loss) before income taxes and impairment loss and equity in net loss of affiliate	23,855	28,709	(8,183)
Income tax benefit (provision)	1,330	(10,681)	1,563
Income (loss) before impairment loss and equity in net loss of affiliate	25,185	18,028	(6,620)
Impairment loss and equity in net loss of affiliate (see Note 9)	(6,787)	(1,411)	(1,284)
Net income (loss)	$ 18,398	$ 16,617	$ (7,904)
Earnings (loss) per share:
Basic	$ 0.53	$ 0.47	$ (0.22)
Diluted	$ 0.52	$ 0.46	$ (0.22)
Shares used in computing earnings (loss) per share:
Basic	34,589	35,250	35,917
Diluted	35,294	36,139	35,917
Comprehensive income (loss):
Net income (loss)	$ 18,398	$ 16,617	$ (7,904)
Other comprehensive income (loss):
Foreign currency translation adjustments, net of tax	(33)	(122)	(280)
Unrealized income (loss) on available-for-sale securities, net of tax	(429)	464	(35)
Total comprehensive income (loss)	17,936	16,959	(8,219)
Products [Member]
Revenues:
Revenues	285,883	301,700	291,685
Cost of revenues:
Cost of revenues	175,009	181,889	178,012
Application Subscriptions and Related Products and Other Services [Member]
Revenues:
Revenues	77,917	64,212	59,417
Cost of revenues:
Cost of revenues	$ 41,027	$ 33,133	$ 29,738