CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
Royalty revenue from a related party, net of amortization for capitalized fees paid to a related party of $3,456 and $2,598 for the three months ended June 30, 2015 and 2014 and $6,912 and $4,378 for the six months ended June 30, 2015 and 2014	$ 10,434	$ 663	$ 17,108	$ (387)
Revenue from collaborative arrangements from a related party, net	221	271	443	541
Total net revenue	10,655	934	17,551	154
Operating expenses:
Research and development	638	2,125	1,350	4,812
General and administrative	4,909	8,603	10,348	19,859
Total operating expenses	5,547	10,728	11,698	24,671
Income (loss) from operations	5,108	(9,794)	5,853	(24,517)
Other income (expense), net	(16)	83	1,162	80
Interest income	85	165	201	353
Interest expense	(12,987)	(10,327)	(25,693)	(11,971)
Loss from continuing operations before income taxes	(7,810)	(19,873)	(18,477)	(36,055)
Income tax expense	0	(278)	0	(278)
Loss from continuing operations, net of tax	(7,810)	(20,151)	(18,477)	(36,333)
Loss from discontinued operations (Notes 1 and 11)	0	(43,413)	0	(94,934)
Net loss	$ (7,810)	$ (63,564)	$ (18,477)	$ (131,267)
Basic and diluted net loss per share:
Continuing operations, net of tax (in dollars per share)	$ (0.07)	$ (0.18)	$ (0.16)	$ (0.33)
Discontinued operations (in dollars per share)	0.00	(0.39)	0.00	(0.86)
Basic and diluted net loss per share (in dollars per share)	(0.07)	(0.57)	(0.16)	(1.19)
Cash dividends declared per common share (in dollars per share)	$ 0.25	$ 0.00	$ 0.50	$ 0.00
Shares used to compute basic and diluted net loss per share (in shares)	115,329	110,974	115,096	110,419