CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Revenues:
Total revenues	$ 20,617	$ 57,203	$ 41,534	$ 115,132
Costs and expenses:
Cost of sales (excluding amortization of intangible assets)	5,238	2,124	6,637	4,699
Research and development expenses	1,626	1,263	2,667	3,056
Selling, general and administrative expenses	28,131	24,755	55,445	49,800
Amortization of intangible assets	4,855	25,443	12,650	50,887
Restructuring charges	6,519	0	6,519	0
Total costs and expenses	46,369	53,585	83,918	108,442
(Loss) income from operations	(25,752)	3,618	(42,384)	6,690
Other income (expense):
Loss on extinguishment of convertible notes	(16,272)	0	(47,880)	0
Interest expense	(1,604)	(14,842)	(10,278)	(31,396)
Loss on prepayment of Senior Notes	0	0	(8,233)	0
Other loss	(499)	(1,240)	(3,824)	(1,849)
Total other (expense) income	(18,219)	(16,082)	41,691	(33,245)
Net loss before income taxes	(43,971)	(12,464)	(693)	(26,555)
Income tax benefit (expense)	9,472	(1,141)	7,424	(1,351)
Net (loss) income	(34,499)	(13,605)	6,731	(27,906)
Comprehensive (loss) income	$ (34,499)	$ (13,605)	$ 6,731	$ (27,906)
Basic net (loss) income per share (in dollars per share)	$ (0.35)	$ (0.21)	$ 0.07	$ (0.43)
Diluted net (loss) income per share (in dollars per share)	$ (0.35)	$ (0.21)	$ 0.07	$ (0.43)
Shares used in computing basic net (loss) income per share (in shares)	98,558	64,480	89,835	64,405
Shares used in computing diluted net (loss) income per share (in shares)	98,558	64,480	90,236	64,405
Product sales, net
Revenues:
Total revenues	$ 20,165	$ 25,937	$ 29,417	$ 52,387
Commercialization agreement, net
Revenues:
Total revenues	0	31,003	11,258	61,859
Royalties and milestones
Revenues:
Total revenues	452	263	859	886
Gralise
Revenues:
Total revenues	(116)	17,800	431	31,078
Other income (expense):
Loss (Gain) on sale of assets	(850)	0	126,655	0
NUCYNTA
Other income (expense):
Loss (Gain) on sale of assets	$ 1,006	$ 0	$ (14,749)	$ 0