Quarterly report pursuant to Section 13 or 15(d)

Royalty Purchase Agreements - Kuros (Details)

v3.21.2
Royalty Purchase Agreements - Kuros (Details) - USD ($)
$ in Thousands
9 Months Ended 12 Months Ended
Jul. 14, 2021
Sep. 30, 2021
Dec. 31, 2020
Agreements      
Long-term royalty receivables   $ 55,075 $ 34,575
Impairment of long-term royalty receivable   0 $ 0
Kuros | Royalty Purchase Agreement [Member]      
Agreements      
Royalties entity has right to receive (as a percent) 100.00%    
Pre-commercial milestone payments $ 25,500    
Upfront payment 7,000    
Potential future sales milestone payments 142,500    
Long-term royalty receivables $ 7,000    
Impairment of long-term royalty receivable   $ 0