Quarterly report [Sections 13 or 15(d)]

Acquisitions - HilleVax Acquisition (Details)

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Acquisitions - HilleVax Acquisition (Details)
$ / shares in Units, $ in Thousands
 1 Months Ended 9 Months Ended
Sep. 17, 2025
USD ($)
$ / shares
shares
Aug. 04, 2025
USD ($)
Right
$ / shares
Jul. 31, 2025
Aug. 31, 2021
Sep. 30, 2025
USD ($)
Dec. 31, 2024
USD ($)
Asset acquisition            
Restricted cash         $ 85,364 $ 4,762
Operating lease liabilities         23,186 $ 900
Lease payments         $ 30,299  
Leased facilities, HilleVax - Swiss Lease with lease expiration of September 30, 2026.            
Asset acquisition            
Operating lease liabilities $ 100          
Subleased facilities, HilleVax Sublease            
Asset acquisition            
Percentage share of security deposit (as a percent)   100.00%        
Sublease expiry term         3 years 2 months  
Subleased facilities, HilleVax Sublease | Within twelve months of the closing date            
Asset acquisition            
Percentage share of sublease (as a percent)         100.00%  
Subleased facilities, HilleVax Sublease | After twelve months of the closing date            
Asset acquisition            
Percentage share of sublease (as a percent)         90.00%  
Subleased facilities, HilleVax Sublease | Restricted cash held for Boston Lease payments            
Asset acquisition            
Restricted cash         $ 41,700  
HilleVax            
Asset acquisition            
Asset acquisition, share price (in dollars per share) | $ / shares $ 1.95 $ 1.95        
Number of non-transferable contractual CVR per share | Right   1        
Percentage share of net proceeds from disposition within two years of merger (as a percent)   90.00%        
Percentage share of unused funds in related expense fund at the end of the two-year period (as a percent)   100.00%        
Contingent value right agreement, contingent consideration probable         0  
Operating lease liabilities $ 22,400          
Contingent value rights liability   $ 5,700        
Common stock tendered | shares 50,615,092          
Lease security deposit $ 1,600          
Sublease Payment 4,100          
Acquired right of use assets, fair value $ 0          
HilleVax | Restricted Stock Unit Awards            
Asset acquisition            
Asset acquisition, share price (in dollars per share) | $ / shares $ 1.95          
Total number of underlying shares | shares 137,592          
HilleVax | Leased facilities, HilleVax - Swiss Lease with lease expiration of September 30, 2026.            
Asset acquisition            
Operating lease liabilities $ 100          
Sublease expiry term     3 years 2 months      
Existence of option to extend       true    
Period of lease extension       5 years    
Lease payments         $ 100  
HilleVax | Subleased facilities, HilleVax Sublease            
Asset acquisition            
Percentage share of sublease or security (as a percent)   100.00%