Condensed Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Current assets:
Cash and cash equivalents	$ 60,194	$ 130,225
Available-for-sale investments	220,200	203,480
Accounts receivable, net of allowance of $62 and $62	31,806	48,081
Other receivables	4,143	8,292
Inventories	27,759	28,826
Prepaid expenses and other current assets, net	8,967	9,774
Total current assets	353,069	428,678
Property and equipment, net	16,347	16,108
Goodwill	364,054	348,957
Other intangible assets, net	180,330	178,064
Other long-term assets	5,274	6,223
Total assets	919,074	978,030
Current liabilities:
Accounts payable	42,886	61,268
Accrued expenses and other current liabilities	18,699	31,109
Deferred revenue	6,945	7,510
Short-term portion of long-term debt, net	7,917	7,903
Convertible senior notes, net	0	181,583
Total current liabilities	76,447	289,373
Long-term liabilities:
Long-term debt, net	55,261	113,193
Convertible senior notes, net	184,254	0
Deferred tax liability, net	41,341	56,861
Deferred revenue	2,331	1,814
Other long-term liabilities	2,610	2,719
Total long-term liabilities	285,797	174,587
Total liabilities	362,244	463,960
Commitments and contingencies (Note 7)
Stockholders’ equity:
Common stock, par value, $0.0001 - authorized, 900,000 shares; issued and outstanding, 40,977 and 42,083 shares	4	4
Additional paid-in capital	1,476,148	1,466,043
Accumulated deficit	(919,491)	(951,977)
Accumulated other comprehensive income	169	0
Total stockholders’ equity	556,830	514,070
Total liabilities and stockholders’ equity	$ 919,074	$ 978,030