CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$ 119,597	$ 79,923
Accounts receivable, net	52,769	46,896
Inventories, net—short-term portion	54,030	50,676
Deferred tax assets—short-term portion	3,731	3,778
Prepaid expenses and other current assets	9,065	9,197
Total current assets	239,192	190,470
Property and equipment, net	20,861	18,087
Inventories, net—long-term portion	4,849	5,956
Goodwill	156,834	156,178
Intangible assets, net	107,920	106,183
Deferred tax assets—long-term portion	297	303
Other long-term assets	8,417	9,371
Total assets	538,370	486,548
Current liabilities:
Accounts payable and accrued liabilities	45,882	53,063
Current portion of long-term debt	4,000	4,000
Deferred revenue—short-term portion	8,128	9,210
Total current liabilities	58,010	66,273
Deferred revenue—long-term portion	2,348	2,372
Convertible notes	105,000	105,000
Term loan—long-term portion	16,950	18,950
Other long-term liabilities	20,601	21,626
Total liabilities	202,909	214,221
Stockholders’ equity:
Common stock	798	743
Additional paid-in capital	840,400	781,747
Accumulated other comprehensive loss	(7,578)	(612)
Accumulated deficit	(498,159)	(509,551)
Total stockholders’ equity	335,461	272,327
Total liabilities and stockholders’ equity	$ 538,370	$ 486,548