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Fair Value Measurements - Milestone Asset, Milestone Contingent Consideration and PRV Interest and Warrants (Details) - USD ($) $ in Thousands	1 Months Ended	6 Months Ended
	Feb. 28, 2025	Jun. 30, 2025	Dec. 31, 2024	Apr. 30, 2024
Fair Value Measurements
Exarafenib milestone asset		$ 3,402	$ 3,214
Exarafenib milestone contingent consideration		3,402	$ 3,214
Fair value of warrants		609
Kinnate CVR holders \| CVR Agreement
Fair Value Measurements
Exarafenib milestone asset		3,400
Exarafenib milestone contingent consideration		3,400		$ 3,200
Increase in Exarafenib milestone asset		200
Increase in Exarafenib milestone contingent consideration		200
Castle Creek Biosciences, Inc \| Royalty Financing Transaction
Fair Value Measurements
Rights entity acquired as a percentage of specified percentage	6.70%
Fair value of warrants	$ 600	$ 600