Segments - Additional Information (Details)	3 Months Ended		12 Months Ended
	Mar. 31, 2024 USD ($) customer	Mar. 31, 2023 USD ($) customer	Dec. 31, 2023 USD ($)
Exemplar
Segment Reporting Information [Line Items]
Percentage of revenue attributable to customer	52.80%	82.50%
Number of customers | customer	3	4
Exemplar | Operating segments
Segment Reporting Information [Line Items]
Total revenues	$ 1,065,000	$ 1,851,000
Non-US
Segment Reporting Information [Line Items]
Long-lived assets	1,120,000		$ 1,958,000
Revenues	$ 0		$ 0