v3.26.1
Liability Related to the Sale of Future Royalties and Milestones (Narrative) (Details) - USD ($)
$ / shares in Units, $ in Thousands
1 Months Ended 6 Months Ended
Jan. 19, 2018
May 31, 2024
Jun. 30, 2026
Jan. 31, 2026
Dec. 31, 2025
Liability Related To Sale Of Future Royalties And Milestones [Line Items]          
Non-cash royalty revenue recognized     $ 57,291    
Non-cash interest expense     27,709    
Amendment Agreement [Member] | Ligand Warrant [Member]          
Liability Related To Sale Of Future Royalties And Milestones [Line Items]          
Warrants, exercise price       $ 7.5 $ 17.3
HCR [Member] | GSK Agreements [Member] | Royalty Purchase Agreement [Member]          
Liability Related To Sale Of Future Royalties And Milestones [Line Items]          
Percentage of purchase of worldwide rights to receive royalties 100.00%        
Gross proceeds received for royalty rights $ 190,000        
Non-cash royalty revenue recognized     57,300    
Non-cash interest expense     $ 17,700    
Effective annual interest rate     (23.20%)    
Prospective effective annual interest rate     24.20%    
Ligand Pharmaceuticals Incorporated [Member] | Common Stock [Member]          
Liability Related To Sale Of Future Royalties And Milestones [Line Items]          
Warrants issued to purchase shars of common stock   867,052      
Warrants, exercise price   $ 17.3      
Ligand Pharmaceuticals Incorporated [Member] | Purchase Agreement [Member]          
Liability Related To Sale Of Future Royalties And Milestones [Line Items]          
Non-cash interest expense     $ 10,000    
Effective annual interest rate     21.00%    
Liability related to sale of future royalties and milestones     $ 63,879    
Prospective effective annual interest rate     21.40%    
Percentage of synthetic royalty on worldwide net sales of purchased assets   2.625%      
Percentage reduction in amounts payable upon overall payments due exceeding specified return hurdle   50.00%      
Percentage increase in synthetic royalty based on certain future events   1.00%      
Consideration on sale of purchased assets gross   $ 75,000      
Reimbursable expenses   900      
Time-based option to invest, additional amount   $ 25,000      
Gross proceeds from purchase agreement     $ 75,000    
Ligand Pharmaceuticals Incorporated [Member] | Covered License Agreements [Member] | Purchase Agreement [Member]          
Liability Related To Sale Of Future Royalties And Milestones [Line Items]          
Percentage of sale of development, regulatory and commercial milestone payments eligible to receive   31.875%      
Percentage of royalties receipts   18.75%