CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Thousands	Nov. 30, 2017	Feb. 28, 2017
Current assets:
Cash and cash equivalents	$ 138,095	$ 93,706
Short-term marketable securities	13,144	6,722
Accounts receivable, net	70,190	67,403
Inventories	39,115	29,279
Prepaid expenses and other current assets	11,433	9,595
Total current assets	271,977	206,705
Property, equipment and improvements, net	21,217	21,162
Deferred income tax assets	35,923	27,504
Goodwill	72,980	72,980
Other intangible assets, net	56,098	67,223
Other assets	17,203	12,565
Total assets	475,398	408,139
Current liabilities:
Accounts payable	42,399	30,266
Accrued payroll and employee benefits	8,831	7,955
Deferred revenue	15,843	14,662
Other current liabilities	31,398	24,958
Total current liabilities	98,471	77,841
1.625% convertible senior unsecured notes	152,378	146,827
Other non-current liabilities	23,471	20,229
Total liabilities	274,320	244,897
Commitments and contingencies (see Note 15)
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; 35,619 and 35,330 shares issued and outstanding at November 30, 2017 and February 28, 2017, respectively	356	353
Additional paid-in capital	215,541	211,187
Accumulated deficit	(14,692)	(47,757)
Accumulated other comprehensive loss	(127)	(541)
Total stockholders' equity	201,078	163,242
Total Liabilities and Stockholders' Equity	$ 475,398	$ 408,139