Condensed Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Revenues
Total revenues	$ 16,722	$ 3,333	$ 25,146	$ 10,583
Operating Expenses
Impairment of goodwill			482	0
Impairment of other noncurrent assets			638	543
Other Expense, Net
Equity in net income (loss) of affiliates			861	(3)
Loss from continuing operations before income taxes	(7,694)	(26,380)	(57,798)	(84,282)
Income (loss) from discontinued operations, net of income taxes	95,023	(3,445)	108,094	16,977
Net income (loss)	$ 87,379	$ (29,764)	$ 50,493	$ (67,132)
Net Loss per Share
Net loss from continuing operations per share, basic (in dollars per share)	$ (0.04)	$ (0.13)	$ (0.29)	$ (0.43)
Net loss from continuing operating per share, diluted (in dollars per share)	(0.04)	(0.13)	(0.29)	(0.43)
Net income (loss) from discontinued operations per share, diluted (in dollars per share)	0.48	(0.02)	0.54	0.09
Net income (loss) from discontinued operations per share, basic (in dollars per share)	0.48	(0.02)	0.54	0.09
Net income (loss) per share, basic (in dollars per share)	0.44	(0.15)	0.25	(0.34)
Net income (loss) per share, diluted (in dollars per share)	$ 0.44	$ (0.15)	$ 0.25	$ (0.34)
Weighted average shares outstanding, basic (in shares)	200,670,590	199,179,763	200,256,046	197,254,438
Weighted average shares outstanding, diluted (in shares)	200,670,590	199,179,763	200,256,046	197,254,438
Collaboration and licensing agreements
Revenues
Total revenues	$ 14,561	$ 22	$ 14,561	$ 389
Continuing Operations
Revenues
Total revenues	16,722	3,333	25,146	10,583
Operating Expenses
Research and development	12,622	12,434	36,377	35,755
Selling, general and administrative	10,137	10,977	36,496	40,197
Impairment of goodwill	0	0	482	0
Impairment of other noncurrent assets	0	0	638	543
Total operating expenses	24,336	24,863	79,075	80,659
Operating loss	(7,614)	(21,530)	(53,929)	(70,076)
Other Expense, Net
Interest expense	(2,036)	(4,765)	(6,137)	(13,902)
Interest income	56	48	131	129
Other income (expense), net	1,038	(133)	1,276	(430)
Total other expense, net	(942)	(4,850)	(4,730)	(14,203)
Equity in net income (loss) of affiliates	862	0	861	(3)
Loss from continuing operations before income taxes	(7,694)	(26,380)	(57,798)	(84,282)
Income tax benefit	50	61	197	173
Loss from continuing operations	(7,644)	(26,319)	(57,601)	(84,109)
Continuing Operations | Collaboration and licensing agreements
Revenues
Total revenues	14,561	22	14,561	389
Continuing Operations | Product revenues
Revenues
Total revenues	342	554	1,455	1,860
Operating Expenses
Cost of products and services	463	482	1,585	1,306
Continuing Operations | Service revenues
Revenues
Total revenues	1,750	2,632	8,896	7,935
Operating Expenses
Cost of products and services	1,114	970	3,497	2,858
Continuing Operations | Other
Revenues
Total revenues	$ 69	$ 125	$ 234	$ 399