License Agreements - Expenses Related Development Costs (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2026	Mar. 31, 2025
Research and Development Arrangement, Contract to Perform for Others [Line Items]
Research and development expense	[1]	$ 17,903	$ 10,627
General and administrative expense	[2]	7,865	3,597
Paragon Therapeutics | License Agreement Terms | Paragon Option Agreements
Research and Development Arrangement, Contract to Perform for Others [Line Items]
Research and development expense		2,500	8,015
General and administrative expense		0	316
Operating costs and expenses, total		$ 2,500	$ 8,331

[1] Includes related party amount of $2,923 and $8,777 for the three months ended March 31, 2026 and March 31, 2025, respectively.

[2] Includes related party amount of $0 and $466 for the three months ended March 31, 2026 and March 31, 2025, respectively.