CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$ 17,902	$ 25,056
Accounts receivable, net of allowances of $9,226 and $10,692 at December 31, 2015 and 2014, respectively	58,807	54,655
Inventories	48,073	48,001
Prepaid expenses	6,548	6,892
Other current assets	6,119	17,932
Total current assets	137,449	152,536
Property and equipment, net	35,481	32,136
Intangible assets, net	33,219	2,445
Goodwill	32,643	0
Long-term deferred tax assets, net	2,011	2,208
Other long-term assets	7,123	2,274
Total assets	247,926	191,599
Current liabilities:
Accounts payable	45,511	32,951
Accrued compensation and benefits	28,124	32,636
Accrued expenses and other current liabilities	35,354	32,353
Income taxes payable	1,023	5,480
Short-term debt	5,000	0
Deferred revenues	189,887	206,608
Total current liabilities	304,899	310,028
Long-term debt	95,950	0
Long-term deferred tax liabilities, net	3,443	136
Long-term deferred revenues	158,495	208,232
Other long-term liabilities	14,711	14,273
Total liabilities	$ 577,498	$ 532,669
Commitments and contingencies (Note L)
Stockholders' deficit:
Preferred stock, $0.01 par value, 1,000 shares authorized; no shares issued or outstanding	$ 0	$ 0
Common stock, $0.01 par value, 100,000 shares authorized; 42,339 shares issued and 39,530 shares and 39,294 shares outstanding at December 31, 2015 and 2014, respectively	423	423
Additional paid-in capital	1,055,838	1,049,969
Accumulated deficit	(1,319,318)	(1,321,798)
Treasury stock at cost, net of reissuances, 2,809 shares and 3,045 shares at December 31, 2015 and 2014, respectively	(58,336)	(68,051)
Accumulated other comprehensive loss	(8,179)	(1,613)
Total stockholders' deficit	(329,572)	(341,070)
Total liabilities and stockholders' deficit	$ 247,926	$ 191,599