CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Revenues:
Product sales, net	$ 104,726	$ 30,584	$ 230,692	$ 80,335
Royalties	130	370	872	1,295
License and other revenue		760		18,280
Non-cash PDL royalty revenue		19,771		95,852
Total revenues	104,856	51,485	231,564	195,762
Costs and expenses:
Cost of sales (excluding amortization of intangible assets)	20,914	3,523	46,891	11,900
Research and development expense	4,629	1,644	11,201	5,083
Selling, general and administrative expense	49,065	27,078	141,015	92,166
Amortization of intangible assets	27,013	2,540	56,284	7,621
Total costs and expenses	101,621	34,785	255,391	116,770
(Loss) income from operations	3,235	16,700	(23,827)	78,992
Other (expense) income:
Interest and other income	62	23	180	70
Interest and other expense	(22,634)	(1,910)	(50,733)	(3,153)
Non-cash interest expense on PDL liability		(4,364)		(14,646)
Total other expense	(22,572)	(6,251)	(50,553)	(17,729)
Net (loss) income before income taxes	(19,337)	10,449	(74,380)	61,263
Benefit from (provision for) income taxes	7,552	(3,995)	29,310	(24,124)
Net (loss) income	$ (11,785)	$ 6,454	$ (45,070)	$ 37,139
Basic net (loss) income per share (in dollars per share)	$ (0.20)	$ 0.11	$ (0.75)	$ 0.64
Diluted net (loss) income per share (in dollars per share)	$ (0.20)	$ 0.11	$ (0.75)	$ 0.61
Shares used in computing basic net (loss) income per share (in shares)	60,320,369	58,567,603	59,960,507	58,076,865
Shares used in computing diluted net (loss) income per share (in shares)	60,320,369	60,864,107	59,960,507	61,838,173