v3.25.2
Royalty and Commercial Payment Purchase Agreements - EIR Method - Aptevo (Details) - USD ($)
 1 Months Ended 3 Months Ended 6 Months Ended
Oct. 01, 2024
Jun. 30, 2023
Mar. 31, 2023
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Dec. 31, 2024
Agreements                
Acquisition of royalty and commercial payment receivables           $ 4,395,000    
Payments of consideration under RPAs, AAAs and CPPAs           8,000,000 $ 37,000,000  
Contingent consideration under RPAs, AAAs, and CPPAs               $ 3,000,000
Income from purchased receivables under the EIR method       $ 6,007,000 $ 4,562,000 12,077,000 4,562,000  
Receipts under RPAs, AAAs, and CPPAs           2,039,000 $ 16,741,000  
Royalty and commercial payment receivables under the EIR method       22,735,000   22,735,000   19,733,000
Short-term royalty and commercial payment receivables under the cost recovery method       700,000   700,000   413,000
Aptevo | Commercial Payment Purchase Agreement                
Agreements                
Maximum milestone payments entitled to receive     $ 5,300,000          
Acquisition of royalty and commercial payment receivables     9,700,000          
Payments of consideration under RPAs, AAAs and CPPAs   $ 50,000 9,600,000          
Maximum commercial sales milestone payments     50,000          
Commercial payments attributable to net sales threshold     500,000          
Contingent consideration under RPAs, AAAs, and CPPAs     $ 50,000          
Reclassification of royalty and commercial payment receivables from the cost recovery to the EIR method, EIR method $ 7,200,000              
Income from purchased receivables under the EIR method       200,000   500,000    
Receipts under RPAs, AAAs, and CPPAs           900,000    
Allowance for credit losses       $ 0   $ 0   $ 0
Aptevo | Commercial Payment Purchase Agreement | Minimum                
Agreements                
Receipts under RPAs, AAAs, and CPPAs   $ 500,000