CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Revenues:
Total revenues	$ 26,839	$ 20,917
Costs and expenses:
Cost of sales	3,966	1,399
Research and development expenses	0	1,041
Selling, general and administrative expenses	7,730	27,314
Amortization of intangible assets	6,547	7,795
Restructuring charges	1,089	0
Total costs and expenses	19,332	37,549
Income (Loss) from operations	7,507	(16,632)
Other (expense) income :
Interest expense	(2,684)	(8,674)
Other gain (loss)	269	(3,325)
Gain (loss) on extinguishment and prepayment of debt	0	(39,841)
Total other (expense) income	(2,415)	59,910
Net income before income taxes	5,092	43,278
Income tax expense	(548)	(2,048)
Net (loss) income	4,544	41,230
Comprehensive (loss) income	$ 4,544	$ 41,230
Basic net income per share (in dollars per share)	$ 0.03	$ 0.51
Diluted net income per share (in dollars per share)	$ 0.03	$ 0.51
Shares used in computing basic net income per share (in shares)	151,296	81,111
Shares used in computing diluted net income per share (in shares)	153,918	81,222
Product sales, net
Revenues:
Total revenues	$ 26,405	$ 9,252
Commercialization agreement, net
Revenues:
Total revenues	0	11,258
Royalties and milestones
Revenues:
Total revenues	434	407
Gralise
Other (expense) income :
Loss (Gain) on sale of assets	0	127,505
NUCYNTA
Other (expense) income :
Loss (Gain) on sale of assets	$ 0	$ (15,755)