Condensed Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Current assets:
Cash and cash equivalents	$ 69,764	$ 130,225
Available-for-sale investments	208,856	203,480
Accounts receivable, net of allowance of $57 and $62	35,680	48,081
Other receivables	3,915	8,292
Inventories	30,564	28,826
Prepaid expenses and other current assets, net	8,656	9,774
Total current assets	357,435	428,678
Property and equipment, net	16,330	16,108
Goodwill	364,054	348,957
Other intangible assets, net	188,323	178,064
Other long-term assets	5,575	6,223
Total assets	931,717	978,030
Current liabilities:
Accounts payable	43,257	61,268
Accrued expenses and other current liabilities	23,714	31,109
Deferred revenue	5,880	7,510
Short-term portion of long-term debt, net	7,912	7,903
Convertible senior notes, net	0	181,583
Total current liabilities	80,763	289,373
Long-term liabilities:
Long-term debt, net	57,242	113,193
Convertible senior notes, net	183,347	0
Deferred tax liability, net	38,443	56,861
Deferred revenue	2,889	1,814
Other long-term liabilities	2,669	2,719
Total long-term liabilities	284,590	174,587
Total liabilities	365,353	463,960
Commitments and contingencies (Note 7)
Stockholders’ equity:
Common stock, par value, $0.0001 - authorized, 900,000 shares; issued and outstanding, 41,039 and 42,083 shares	4	4
Additional paid-in capital	1,481,523	1,466,043
Accumulated deficit	(917,253)	(951,977)
Accumulated other comprehensive income	2,090	0
Total stockholders’ equity	566,364	514,070
Total liabilities and stockholders’ equity	$ 931,717	$ 978,030