Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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Revenue - Collaborative Arrangements - Revenue Recognized (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended		6 Months Ended		12 Months Ended
	Dec. 31, 2025	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025	Dec. 31, 2025
Revenues:
Total revenues		$ 20,731	$ 26,195	$ 38,430	$ 41,583
Collaboration Agreement
Revenues:
Total revenues		$ 20,731	18,695	$ 38,430	34,083
Licensing and Milestone
Revenues:
Total revenues			$ 7,500		$ 7,500
Collaborative Arrangement, Transaction with Party to Collaborative Arrangement \| Viatris
Collaborative Arrangement
Collaborative arrangement, milestones, sales and regulatory milestones, achieved, net sales in period, domestic						$ 250,000
Collaborative Arrangement, Transaction with Party to Collaborative Arrangement \| Viatris \| Licensing
Revenues:
Total revenues						$ 7,500
Collaborative Arrangement, Transaction with Party to Collaborative Arrangement \| Viatris \| Milestone
Revenues:
Total revenues	$ 25,000