XML 148 R41.htm IDEA: XBRL DOCUMENT v3.25.1
Sale of future royalties - Liability Activity (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jul. 02, 2019
Mar. 31, 2025
Mar. 31, 2024
Jun. 30, 2016
Liability Related To Sale Of Future Royalties [Roll Forward]        
Net liability related to sale of future royalties - beginning balance   $ 4,829 $ 6,953  
Non-cash royalty revenue   (448) (593)  
Non-cash interest expense   28 36  
Net liability related to sale of future royalties - ending balance   4,409 6,396  
Research and Development Arrangement, Contract to Perform for Others [Line Items]        
Non-cash interest expense   28 36  
ONPATTRO        
Research and Development Arrangement, Contract to Perform for Others [Line Items]        
Royalty interest sold, annual revenue threshold of highest tier $ 500,000 500,000   $ 500,000
OMERS        
Liability Related To Sale Of Future Royalties [Roll Forward]        
Non-cash interest expense   100 100  
Research and Development Arrangement, Contract to Perform for Others [Line Items]        
Non-cash interest expense   $ 100 $ 100