CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Revenues:
Total revenues	$ 20,917	$ 57,929
Costs and expenses:
Cost of sales (excluding amortization of intangible assets)	1,399	2,575
Research and development expenses	1,041	1,793
Selling, general and administrative expenses	27,314	25,045
Amortization of intangible assets	7,795	25,444
Total costs and expenses	37,549	54,857
(Loss) income from operations	(16,632)	3,072
Other income (expense):
Loss on extinguishment of convertible notes	(31,608)	0
Interest expense	(8,674)	(16,554)
Loss on prepayment of Senior Notes	(8,233)	0
Other	(3,325)	(609)
Total other income (expense)	59,910	(17,163)
Net income (loss) before income taxes	43,278	(14,091)
Income tax expense	(2,048)	(210)
Net income (loss)	41,230	(14,301)
Comprehensive income (loss)	$ 41,230	$ (14,301)
Basic net income (loss) per share (in dollars per share)	$ 0.58	$ (0.22)
Diluted net income (loss) per share (in dollars per share)	$ 0.58	$ (0.22)
Shares used in computing basic net income (loss) per share (in shares)	70,940	64,239
Shares used in computing diluted net income (loss) per share (in shares)	71,051	64,239
Product sales, net
Revenues:
Total revenues	$ 9,252	$ 26,450
Commercialization agreement, net
Revenues:
Total revenues	11,258	30,856
Royalties and milestones
Revenues:
Total revenues	407	623
Gralise
Revenues:
Total revenues	547	13,278
Other income (expense):
Gain (loss) on sale of assets	127,505	0
NUCYNTA
Other income (expense):
Gain (loss) on sale of assets	$ (15,755)	$ 0