CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Revenues:
Product sales	$ 94,295	$ 28,245	$ 125,966	$ 49,751
Royalties	209	430	742	925
License and other revenue		5,760		17,520
Non-cash PDL royalty revenue		33,297		76,081
Total revenues	94,504	67,732	126,708	144,277
Costs and expenses:
Cost of sales (excluding amortization of intangible assets)	22,865	4,675	25,977	8,377
Research and development expense	4,714	1,397	6,572	3,439
Selling, general and administrative expense	57,408	32,573	91,950	65,090
Amortization of intangible assets	26,731	2,542	29,271	5,081
Total costs and expenses	111,718	41,187	153,770	81,987
(Loss) income from operations	(17,214)	26,545	(27,062)	62,290
Other (expense) income:
Interest and other income	61	20	118	47
Interest expense	(22,078)	(616)	(28,100)	(1,243)
Non-cash interest expense on PDL liability		(4,903)		(10,282)
Total other expense	(22,017)	(5,499)	(27,982)	(11,478)
Net (loss) income before income taxes	(39,231)	21,046	(55,044)	50,812
Benefit from (provision for) income taxes	17,578	(8,300)	21,758	(20,128)
Net (loss) income	$ (21,653)	$ 12,746	$ (33,286)	$ 30,684
Basic net (loss) income per share (in dollars per share)	$ (0.36)	$ 0.22	$ (0.56)	$ 0.53
Diluted net (loss) income per share (in dollars per share)	$ (0.36)	$ 0.21	$ (0.56)	$ 0.51
Shares used in computing basic net (loss) income per share (in shares)	59,991,934	58,105,902	59,777,594	57,827,430
Shares used in computing diluted net (loss) income per share (in shares)	59,991,934	60,430,456	59,777,594	60,258,445