CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Thousands	Nov. 30, 2018	Feb. 28, 2018
Current assets:
Cash and cash equivalents	$ 271,613	$ 132,603
Short-term marketable securities	30,148	23,400
Accounts receivable, net	72,426	71,580
Inventories	31,515	36,302
Prepaid expenses and other current assets	13,733	12,000
Total current assets	419,435	275,885
Property and equipment, net	23,192	21,262
Deferred income tax assets	21,859	31,581
Goodwill	73,284	72,980
Other intangible assets, net	43,518	52,456
Other assets	26,759	18,829
Total assets	608,047	472,993
Current liabilities:
Accounts payable	31,556	35,478
Accrued payroll and employee benefits	8,314	10,606
Deferred revenue	20,030	17,757
Other current liabilities	37,979	31,688
Total current liabilities	97,879	95,529
Convertible senior unsecured notes, net	272,420	154,299
Other non-current liabilities	36,195	24,249
Total liabilities	406,494	274,077
Commitments and contingencies (see Note 16)
Stockholders' equity:
Preferred stock, $.01 par value; 3,000 shares authorized; no shares issued or outstanding
Common stock, $.01 par value; 80,000 shares authorized; 34,259 and 35,718 shares issued and outstanding at November 30, 2018 and February 28, 2018, respectively	343	357
Additional paid-in capital	215,340	218,217
Accumulated deficit	(13,485)	(19,459)
Accumulated other comprehensive loss	(645)	(199)
Total stockholders' equity	201,553	198,916
Total Liabilities and Stockholders' Equity	$ 608,047	$ 472,993