CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Revenue:
Royalty revenue from a related party, net of amortization for capitalized fees paid to a related party of $13,823, $11,066 and $743 in the year ended December 31, 2015, 2014 and 2013	$ 53,064	$ 7,351	$ 1,202
Revenue from collaborative arrangements from a related party, net	885	1,082	3,330
Total net revenue	53,949	8,433	4,532
Operating expenses:
Research and development	2,619	7,498	9,038
General and administrative	19,750	34,864	24,289
Total operating expenses	22,369	42,362	33,327
Income (loss) from operations	31,580	(33,929)	(28,795)
Other income (expense), net	1,120	(3,272)	6,732
Interest income	343	563	778
Interest expense	(51,803)	(36,892)	(9,348)
Loss from continuing operations before income taxes	(18,760)	(73,530)	(30,633)
Income tax expense (benefit)	0	0	0
Loss from continuing operations, net of tax	(18,760)	(73,530)	(30,633)
Loss from discontinued operations (Notes 1 and 12)	0	(94,934)	(140,068)
Net loss	$ (18,760)	$ (168,464)	$ (170,701)
Basic and diluted net loss per share:
Continuing operations, net of tax (in dollars per share)	$ (0.16)	$ (0.66)	$ (0.30)
Discontinued operations (in dollars per share)	0.00	(0.84)	(1.37)
Basic and diluted net loss per share (in dollars per share)	(0.16)	(1.50)	(1.67)
Cash dividend declared per common share (in dollars per share)	$ 0.75	$ 0.50	$ 0.00
Shares used to compute basic and diluted net loss per share	115,372	112,059	102,425