v3.26.3
Fair value of financial instruments and marketable securities - Available-for-sale securities (Details) - USD ($)
$ in Thousands
Sep. 30, 2026
Dec. 31, 2025
Fair value of financial instruments and marketable securities    
Securities in an unrealized loss position less than 12 months - Unrealized losses $ (3,997) $ (18)
Securities in an unrealized loss position less than 12 months - Fair Value 1,534,904 95,374
Total - Unrealized losses (3,997) (18)
Total - Fair Value 1,534,904 95,374
Commercial paper    
Fair value of financial instruments and marketable securities    
Securities in an unrealized loss position less than 12 months - Unrealized losses (206) (9)
Securities in an unrealized loss position less than 12 months - Fair Value 122,145 50,306
Total - Unrealized losses (206) (9)
Total - Fair Value 122,145 50,306
Corporate debt securities    
Fair value of financial instruments and marketable securities    
Securities in an unrealized loss position less than 12 months - Unrealized losses (2,162) (9)
Securities in an unrealized loss position less than 12 months - Fair Value 677,803 45,068
Total - Unrealized losses (2,162) (9)
Total - Fair Value 677,803 $ 45,068
Government obligations    
Fair value of financial instruments and marketable securities    
Securities in an unrealized loss position less than 12 months - Unrealized losses (1,629)  
Securities in an unrealized loss position less than 12 months - Fair Value 734,956  
Total - Unrealized losses (1,629)  
Total - Fair Value $ 734,956