Segment Reporting - Segment information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Segment Reporting
Revenue	$ 28,321	$ 254,953
Stock-based compensation expense	(13,802)	(9,352)
Interest income	7,573	4,376
Income tax expense	0	(3,326)
Net (loss) income	(11,655)	207,340
Operating segment
Segment Reporting
Net (loss) income	(11,655)	207,340
Operating segment | Single reportable segment
Segment Reporting
Revenue	28,321	254,953
Discovery department expenses (excluding employee wages and benefits, stock-based compensation and expense allocations)	(2,583)	(2,608)
Development department expense (excluding employee wages and benefits, stock-based compensation and expense allocations)	(14,069)	(14,825)
General and administrative expenses (excluding employee wages and benefits, stock-based compensation and expense allocations)	(5,535)	(9,924)
Employee wages and benefits - discovery	(2,127)	(1,654)
Employee wages and benefits - development	(5,684)	(6,592)
Employee wages and benefits - general and administrative	(3,831)	(3,689)
Stock-based compensation expense	(13,802)	(9,352)
Other segment items	$ 82	$ (19)
Segment reporting other item	Other segment items include foreign currency related income (expense) and other miscellaneous income (expense).	Other segment items include foreign currency related income (expense) and other miscellaneous income (expense).
Interest income	$ 7,573	$ 4,376
Income tax expense		$ (3,326)