Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	May 31, 2016	May 31, 2015
Operating activities
Net income (loss)	$ 2,784	$ (3,832)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation, amortization and impairment expense	4,281	2,174
Stock-based compensation expense	7,937	6,544
Excess tax benefits from equity compensation plans	(141)	(2,144)
Deferred income taxes	261	145
Other	(225)	337
Changes in operating assets and liabilities:
Accounts receivable, net	1,015	(2,339)
Inventories, net	(363)	(263)
Income taxes, net	1,452	2,289
Deferred costs	(26)	(1,379)
Other assets	(1,669)	283
Accounts payable	(3,283)	(3,113)
Accrued payroll and related benefits	69	(61)
Other liabilities	(255)	(352)
Deferred revenue	277	8,013
Net cash provided by operating activities	12,114	6,302
Investing activities
Purchases of marketable securities	(11,572)	(8,493)
Proceeds from the sale of marketable securities	5,351	3,203
Proceeds from the maturity of marketable securities	3,831	3,026
Purchases of non-marketable investments	636	0
Purchases of property and equipment	(1,949)	(1,876)
Business combinations, net of cash acquired	(183)	0
Net cash used in investing activities	(5,158)	(4,140)
Financing activities
Proceeds from issuance of common stock	3,031	3,248
Taxes paid related to net share settlement of equity awards	(1,554)	(2,176)
Excess tax benefits from equity compensation plans	141	2,144
Employee loans extended, net of repayment	(34)	(276)
Repayment of note payable	(67)	(63)
Repurchases of common stock	(280)	0
Other	0	(156)
Net cash provided by financing activities	1,237	2,721
Effect of exchange rate changes on cash and cash equivalents	135	(194)
Net increase in cash and cash equivalents	8,328	4,689
Cash and cash equivalents at beginning of period	118,654	151,373
Cash and cash equivalents at end of period	$ 126,982	$ 156,062