Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Revenues:
Total revenues	$ 24,808	$ 45,663	$ 93,279	$ 191,863
Operating costs and expenses:
Cost of material sales	3,147	1,460	9,410	3,382
Amortization of intangibles	3,552	5,725	10,560	12,309
Research and development	13,742	5,483	37,244	19,023
General and administrative	9,525	9,633	31,607	26,571
Total operating costs and expenses	29,966	22,301	88,821	61,285
Gain from sale of Promacta license	0	0	812,797	0
Income (loss) from operations	(5,158)	23,362	817,255	130,578
Other income (expense):
Gain (loss) from Viking	(10,520)	62,398	(5,592)	124,206
Interest income	7,396	5,474	22,590	9,111
Interest expense	(8,993)	(11,200)	(26,911)	(28,133)
Other expense, net	(2,596)	(808)	(2,528)	(5,643)
Total other income (loss), net	(14,713)	55,864	(12,441)	99,541
Income (loss) before income taxes	(19,871)	79,226	804,814	230,119
Income tax benefit (expense)	4,620	(11,864)	(168,147)	(44,316)
Net income (loss)	$ (15,251)	$ 67,362	$ 636,667	$ 185,803
Earnings Per Share, Basic and Diluted:
Basic net income (loss) per share (USD per share)	$ (0.81)	$ 3.19	$ 32.51	$ 8.77
Shares used in basic per share calculations (shares)	18,770	21,148	19,586	21,189
Diluted net income (loss) per share (USD per share)	$ (0.81)	$ 2.80	$ 31.29	$ 7.61
Shares used in diluted per share calculations (shares)	18,770	24,052	20,349	24,430
Royalties
Revenues:
Total revenues	$ 9,767	$ 36,127	$ 35,931	$ 88,343
Material sales
Revenues:
Total revenues	6,849	7,027	24,357	19,030
License fees, milestones and other revenues
Revenues:
Total revenues	$ 8,192	$ 2,509	$ 32,991	$ 84,490