Segments - Revenues by Reportable Segment (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Segment Reporting Information [Line Items]
Revenues from external customers	$ 1,767	$ 2,911	$ 3,618	$ 8,424
Total segment revenues from reportable segments
Segment Reporting Information [Line Items]
Revenues	1,767	2,911	3,618	8,424
Operating segments
Segment Reporting Information [Line Items]
Revenues	1,767	2,911	3,618	8,424
Revenues from external customers	1,767	2,911	3,618	8,424
Operating segments | Biopharmaceuticals
Segment Reporting Information [Line Items]
Revenues	0	70	0	154
Revenues from external customers	0	70	0	154
Operating segments | Exemplar
Segment Reporting Information [Line Items]
Revenues	1,767	2,841	3,618	8,270
Revenues from external customers	1,767	2,841	3,618	8,270
Intersegment revenues
Segment Reporting Information [Line Items]
Revenues	0	0	0	0
Intersegment revenues | Biopharmaceuticals
Segment Reporting Information [Line Items]
Revenues	0	0	0	0
Intersegment revenues | Exemplar
Segment Reporting Information [Line Items]
Revenues	0	0	0	0
Elimination of intersegment revenues
Segment Reporting Information [Line Items]
Revenues	$ 0	$ 0	$ 0	$ 0