CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Revenues:
Product sales, net	$ 455,066	$ 341,750	$ 114,219
Royalties	831	985	1,821
License and other revenue			31,515
Non-cash PDL royalty revenue			242,808
Total revenues	455,897	342,735	390,363
Costs and expenses:
Cost of sales (excluding amortization of intangible assets)	87,414	67,898	15,146
Research and development expenses	32,631	17,541	7,116
Acquired in-process research & development expense		54,900
Selling, general and administrative expenses	204,498	199,352	121,126
Amortization of intangible assets	106,845	83,344	10,161
Non-cash gain on settlement agreement		(29,900)
Total costs and expenses	431,388	393,135	153,549
Income (loss) from operations	24,509	(50,400)	236,814
Other (expense) income:
Interest and other income	485	599	215
Loss on prepayment of Senior Notes	(5,777)
Interest expense	(83,719)	(73,436)	(9,275)
Non-cash interest expense on PDL liability			(14,646)
Total other (expense) income	(89,011)	(72,837)	(23,706)
Net income (loss) before income taxes	(64,502)	(123,237)	213,108
(Provision for) Benefit from income taxes	(24,218)	47,499	(81,346)
Net income (loss)	$ (88,720)	$ (75,738)	$ 131,762
Basic net income (loss) per share (in dollars per share)	$ (1.45)	$ (1.26)	$ 2.26
Diluted net income (loss) per share (in dollars per share)	$ (1.45)	$ (1.26)	$ 2.05
Shares used in computing basic net (income) loss per share (in shares)	61,296,875	60,116,530	58,292,633
Shares used in computing diluted net income (loss) per share (in shares)	61,296,875	60,116,530	66,307,364