Unaudited Condensed Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Current assets:
Cash and cash equivalents	$ 96,407	$ 81,897
Short-term investments, available-for-sale	54,010	211,654
Accounts receivable, net of allowance of $23 and $10	35,243	25,019
Other receivables, net	1,274	542
Prepaid expenses and other current assets, net	4,514	1,958
Total current assets	191,448	321,070
Property and equipment, net	6,587	5,277
Goodwill	230,980	44,815
Other intangible assets, net	137,959	1,315
Deferred tax asset, net	19,369	19,102
Other long-term assets	4,382	3,560
Total assets	590,725	395,139
Current liabilities:
Accounts payable	36,954	28,947
Accrued expenses and other current liabilities	12,372	10,250
Short-term portion of long-term debt, net of discount of $142 and $0	2,233
Derivative instruments	10,951
Total current liabilities	62,510	39,197
Long-term liabilities:
Long-term debt, net of discount of $517 and $0	71,604
Deferred tax liability	48,149	21
Other long-term liabilities	2,205	816
Total long-term liabilities	121,958	837
Total liabilities	184,468	40,034
Commitments and contingencies (Note 8)
Stockholders' equity:
Common stock, par value, $0.0001- authorized, 900,000,000 shares; issued and outstanding, 40,633,000 and 39,533,570 shares	4	4
Additional paid-in capital	1,386,741	1,353,971
Accumulated deficit	(980,196)	(998,902)
Accumulated other comprehensive income (loss)	(292)	32
Total stockholders' equity	406,257	355,105
Total liabilities and stockholders' equity	$ 590,725	$ 395,139