CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Feb. 28, 2017	Feb. 29, 2016
Current assets:
Cash and cash equivalents	$ 93,706	$ 139,388
Short-term marketable securities	6,722	88,718
Accounts receivable, less allowance for doubtful accounts of $962 and $622 at February 28, 2017 and 2016, respectively	67,403	49,432
Inventories	29,279	16,731
Prepaid expenses and other current assets	9,595	4,498
Total current assets	206,705	298,767
Property, equipment and improvements, net of accumulated depreciation and amortization	21,162	11,225
Deferred income tax assets	27,504	30,213
Goodwill	72,980	16,508
Other intangible assets, net	67,223	17,010
Other assets	12,565	10,640
Total assets	408,139	384,363
Current liabilities:
Accounts payable	30,266	24,938
Accrued payroll and employee benefits	7,955	6,814
Deferred revenue	14,662	9,438
Other current liabilities	24,958	8,375
Total current liabilities	77,841	49,565
1.625% convertible senior unsecured notes	146,827	139,800
Other non-current liabilities	20,229	5,551
Total liabilities	244,897	194,916
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;35,330 and 36,667 shares issued and outstanding at February 28, 2017 and 2016, respectively	353	367
Additional paid-in capital	211,187	229,159
Accumulated deficit	(47,757)	(39,853)
Accumulated other comprehensive loss	(541)	(226)
Total stockholders' equity	163,242	189,447
Total Liabilities and Stockholders' Equity	$ 408,139	$ 384,363