CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Revenues:
Total revenues	$ 34,565	$ 55,147	$ 76,099	$ 170,278
Costs and expenses:
Cost of sales (excluding amortization of intangible assets)	6,462	2,243	13,099	6,942
Research and development expenses	1,316	1,476	3,983	4,531
Selling, general and administrative expenses	25,746	36,117	81,191	85,917
Amortization of intangible assets	5,587	25,444	18,237	76,331
Restructuring charges	268	0	6,787	0
Total costs and expenses	39,379	65,280	123,297	173,721
Loss from operations	(4,814)	(10,133)	(47,198)	(3,443)
Other income (expense):
Interest expense	(3,050)	(13,872)	(13,328)	(45,268)
Change in fair value of contingent consideration	(1,861)	0	(1,861)	0
Other gain (loss)	253	(764)	(3,571)	(2,613)
Total other (expense) income	(4,658)	11,749	37,033	(21,496)
Net (loss) income before income taxes	(9,472)	1,616	(10,165)	(24,939)
Income tax (expense) benefit	(1,050)	1,715	6,374	364
Net (loss) income	(10,522)	3,331	(3,791)	(24,575)
Comprehensive (loss) income	$ (10,522)	$ 3,331	$ (3,791)	$ (24,575)
Basic and diluted net (loss) income per share (in dollars per share)	$ (0.09)	$ 0.05	$ (0.04)	$ (0.36)
Shares used in computing basic and diluted net (loss) income per share (in shares)	119,564	72,747	99,832	67,332
Convertible notes
Other income (expense):
(Loss) Gain on extinguishment and prepayment of debt	$ 0	$ 26,385	$ (47,880)	$ 26,385
Senior Notes
Other income (expense):
(Loss) Gain on extinguishment and prepayment of debt	0	0	(8,233)	0
Product sales, net
Revenues:
Total revenues	34,266	27,502	63,683	79,889
Commercialization agreement, net
Revenues:
Total revenues	0	27,304	11,258	89,163
Royalties and milestones
Revenues:
Total revenues	299	341	1,158	1,226
Gralise
Revenues:
Total revenues		14,900	400	46,000
Other income (expense):
Loss (Gain) on sale of assets	0	0	126,655	0
NUCYNTA
Other income (expense):
Loss (Gain) on sale of assets	$ 0	$ 0	$ (14,749)	$ 0