CONDENSED CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Current assets:
Cash and cash equivalents	$ 26,772	$ 39,788
Marketable securities	103,065	86,444
Accounts receivable	880	5,189
Income tax receivable	6,174	2,963
Prepaid expenses and other current assets	2,146	2,186
Total current assets	139,037	136,570
Marketable securities, non-current	31	1,819
Property, plant and equipment, net	5,911	7,013
Goodwill	46,822	44,794
Other intangible assets, net	76,547	86,198
Other assets	1,564	554
Total assets	269,912	276,948
Current liabilities:
Accounts payable	7,723	7,529
Accrued compensation	4,213	5,324
Other accrued liabilities	616	613
Deferred acquisition consideration	8,283	17,353
Deferred tax liability	3,496	3,342
Deferred revenue		509
Total current liabilities	24,331	34,670
Warrant liability	316	187
Deferred acquisition consideration, non-current	8,628	11,624
Deferred tax liability, non-current	4,152	9,545
Deferred revenue, non-current		921
Total liabilities	37,427	56,947
Commitments and contingencies
Stockholders' equity:
Preferred stock, $.001 par value; 2,000,000 shares authorized; none outstanding
Common stock, $.001 par value; 150,000,000 shares authorized; 93,488,828 and 93,049,938 shares issued and outstanding at September 30, 2012 and December 31, 2011, respectively	93	93
Additional paid in capital	564,421	561,355
Accumulated other comprehensive loss	(979)	(6,677)
Accumulated deficit	(331,050)	(334,770)
Total stockholders' equity	232,485	220,001
Total liabilities and stockholders' equity	$ 269,912	$ 276,948