Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Feb. 29, 2016	Feb. 28, 2015	Feb. 28, 2014
Operating activities
Consolidated net loss	$ (4,422)	$ (67,498)	$ (4,387)
Depreciation, amortization and impairment expense	13,300	8,631	9,109
Adjustments to reconcile consolidated net loss to net cash provided by operating activities:
Stock-based compensation expense	28,846	17,058	10,837
Excess tax benefits from equity compensation plans	(3,788)	(8,947)	(1,513)
Deferred income taxes	(6,592)	59,261	(12,633)
Other	(865)	486	243
Changes in operating assets and liabilities:
Accounts receivable, net	4,427	(12,945)	(3,631)
Inventories, net	(1,193)	1,189	(509)
Income taxes, net	2,756	(485)	2,696
Deferred costs	(1,112)	(8,189)	(10,809)
Other assets	(2,187)	(2,158)	(348)
Accounts payable	(720)	2,835	1,183
Accrued payroll and related benefits	3,339	1,959	(212)
Other liabilities	(1,526)	3,566	387
Deferred revenue	19,003	59,341	51,797
Net cash provided by operating activities	49,266	54,104	42,210
Investing activities
Purchase of marketable securities	(26,021)	(41,977)	0
Proceeds from the sale of marketable securities	10,310	249	1,516
Proceeds from maturity of marketable securities	20,047	735	0
Purchase of investment in non-marketable equity and debt securities	(1,400)	(1,200)	(310)
Purchase of property and equipment	(7,818)	(12,517)	(7,616)
Purchase of intangible assets	0	(38)	(28)
Business combinations, net of cash acquired	(56,862)	(4,791)	(8,475)
Net cash used in investing activities	(61,744)	(59,539)	(14,913)
Financing activities
Net proceeds from initial public offering	0	0	75,490
Proceeds from issuance of common stock	4,845	16,476	3,310
Taxes paid related to net share settlement of equity awards	(6,734)	(5,369)	(3,101)
Dividends paid	0	0	(1,419)
Repurchase of common stock	(19,216)	0	(723)
Excess tax benefits from equity compensation plans	3,788	8,947	1,513
Repayment of employee loans, net of loans extended	(2,464)	1,921	3,655
Repayment of note payable	(285)	(237)	(222)
Other	(330)	(34)	0
Net cash provided by (used in) financing activities	(20,396)	21,704	78,503
Effect of exchange rate changes on cash and cash equivalents	155	(775)	(16)
Net increase (decrease) in cash and cash equivalents	(32,719)	15,494	105,784
Cash and cash equivalents at beginning of period	151,373	135,879	30,095
Cash and cash equivalents at end of period	118,654	151,373	135,879
Cash paid during the period for:
Interest	287	326	447
Income taxes, net of tax refunds	353	3,191	2,565
Non-cash financing and investing activities:
Conversion of preferred stock into common stock	0	0	167,554
Ownership increase in non-controlling interest	$ 0	$ 0	$ 3,246