CONDENSED CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Current assets:
Cash and cash equivalents	$ 68,327	$ 57,128
Accounts receivable, net	46,037	50,862
Inventories, net—short-term portion	51,674	58,059
Deferred tax assets—short-term portion	1,974	767
Prepaid expenses and other current assets	8,964	8,920
Total current assets	176,976	175,736
Property and equipment, net	16,137	18,671
Inventories, net—long-term portion	6,098	5,972
Goodwill	157,962	161,595
Intangible assets, net	112,339	131,108
Deferred tax assets—long-term portion	344	355
Other long-term assets	10,699	11,074
Total assets	480,555	504,511
Current liabilities:
Accounts payable and accrued liabilities	47,806	45,534
Current portion of long-term debt	4,000	12,750
Deferred revenue—short-term portion	12,953	18,660
Total current liabilities	64,759	76,944
Deferred revenue—long-term portion	2,524	2,824
Convertible notes	105,000	105,000
Term loan—long-term portion	19,950	26,700
Other long-term liabilities	20,445	21,496
Total liabilities	212,678	232,964
Stockholders’ equity:
Common stock	736	723
Additional paid-in capital	778,393	768,149
Accumulated other comprehensive income	3,466	8,392
Accumulated deficit	(514,718)	(505,717)
Total stockholders’ equity	267,877	271,547
Total liabilities and stockholders’ equity	$ 480,555	$ 504,511