CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$ 88,767	$ 79,923
Other Short-term Investments	50,000	0
Accounts receivable, net	58,970	46,896
Inventories—short-term portion	54,131	50,676
Deferred tax assets—short-term portion	0	3,778
Prepaid expenses and other current assets	7,655	9,197
Total current assets	259,523	190,470
Property and equipment, net	21,000	18,087
Inventories—long-term portion	2,207	5,956
Goodwill	154,539	156,178
Intangible assets, net	102,398	106,183
Deferred tax assets—long-term portion	567	303
Other long-term assets	6,657	9,371
Total assets	546,891	486,548
Current liabilities:
Accounts payable and accrued liabilities	56,037	53,063
Term loan—short-term portion	4,000	4,000
Deferred revenue—short-term portion	8,605	9,210
Total current liabilities	68,642	66,273
Deferred revenue—long-term portion	2,161	2,372
Convertible notes	105,000	105,000
Term loan—long-term portion	15,088	18,950
Other long-term liabilities	16,747	21,626
Stockholders' equity:
Convertible preferred stock, $0.01 par value; 5,000 shares authorized; no shares issued and outstanding at December 31, 2015 or 2014	0	0
Common stock, $0.01 par value; 200,000 shares authorized; 80,482 and 74,287 shares issued and outstanding at December 31, 2015 and 2014, respectively	805	743
Additional paid-in capital	847,266	781,747
Accumulated other comprehensive loss	(9,380)	(612)
Accumulated deficit	(499,438)	(509,551)
Total stockholders' equity	339,253	272,327
Total liabilities and stockholders' equity	$ 546,891	$ 486,548