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CONSOLIDATED SUPPLEMENTARY FINANCIAL DATA (Unaudited) (Tables)
 12 Months Ended
Dec. 31, 2011
CONSOLIDATED SUPPLEMENTARY FINANCIAL DATA (Unaudited)  
Schedule of quarterly statements of operations

 

 

 
   Dec. 31,
2011 		  Sept. 30,
2011 		  June 30,
2011 		  March 31,
2011 		  Dec. 31,
2010 		  Sept. 30,
2010 		  June 30,
2010 		  March 31,
2010 		 
 
   (In thousands, except for per share amounts)
  

Revenue:

                                                  

Royalties

   $ 82,583   $ 96,216   $ 60,970   $ 59,235   $ 90,242   $ 31,179   $ 38,192   $ 160,542  

Contract revenue

     776     4,047     5,244     3,292     679     564     670     1,322  
                                   

Total revenue

     83,359     100,263     66,214     62,527     90,921     31,743     38,862     161,864  
                                   

Operating costs and expenses:

                                                  

Cost of revenue

     7,453     7,425     6,058     3,149     1,911     1,368     1,804     1,854  

Research and development

     35,841     32,318     24,220     23,317     25,028     23,002     22,985     21,691  

Marketing, general and administrative

     44,715     48,952     37,732     32,732     30,602     27,938     29,408     31,527  

Costs of restatement and related legal activities, net

     13,484     832     712     1,159     797     1,229     1,638     526  

Gain from settlement

     —     —     —     (6,200 )   (10,300 )   (10,300 )   (10,300 )   (95,900 )
                                   

Total operating costs and expenses (recoveries)(1)

     101,493     89,527     68,722     54,157     48,038     43,237     45,535     (40,302 )
                                   

Operating income (loss)

     (18,134 )   10,736     (2,508 )   8,370     42,883     (11,494 )   (6,673 )   202,166  

Interest income (expense) and other income, net

     (821 )   (768 )   (777 )   (652 )   (192 )   312     316     425  

Interest expense on convertible notes

     (5,453 )   (5,410 )   (5,212 )   (5,172 )   (4,990 )   (4,953 )   (3,740 )   (6,016 )
                                   

Interest and other income (expense), net

     (6,274 )   (6,178 )   (5,989 )   (5,824 )   (5,182 )   (4,641 )   (3,424 )   (5,591 )
                                   

Income (loss) before income taxes

     (24,408 )   4,558     (8,497 )   2,546     37,701     (16,135 )   (10,097 )   196,575  

Provision for income taxes

     4,308     4,080     2,088     6,776     4,617     4,441     2,393     45,676  
                                   

Net income (loss)

   $ (28,716 ) $ 478   $ (10,585 ) $ (4,230 ) $ 33,084   $ (20,576 ) $ (12,490 ) $ 150,899  
                                   

Net income (loss) per share—basic

   $ (0.26 ) $ 0.00   $ (0.10 ) $ (0.04 ) $ 0.30   $ (0.18 ) $ (0.11 ) $ 1.33  
                                   

Net income (loss)per share—diluted

   $ (0.26 ) $ 0.00   $ (0.10 ) $ (0.04 ) $ 0.29   $ (0.18 ) $ (0.11 ) $ 1.28  
                                   

Shares used in per share calculations—basic

     110,171     112,334     109,992     107,613     111,530     111,866     113,321     113,132  
                                   

Shares used in per share calculations—diluted

     110,171     115,552     109,992     107,613     114,461     111,866     113,321     117,463  
                                   
Schedule of employee service share-based compensation, allocation of recognized period costs

 

Cost of revenue

   $ 76   $ 90   $ 286   $ 123   $ 27   $ 17   $ 29   $ 100  

Research and development

   $ 2,742   $ 2,775   $ 2,490   $ 2,512   $ 2,423   $ 2,470   $ 2,703   $ 2,569  

Marketing, general and administrative

   $ 3,640   $ 4,354   $ 4,253   $ 4,655   $ 4,870   $ 4,976   $ 5,199   $ 5,165