v3.26.1
DEBT - Narrative (Details) - USD ($)
$ in Thousands
1 Months Ended 3 Months Ended
Feb. 28, 2026
Mar. 31, 2026
Dec. 31, 2025
Debt Instrument [Line Items]      
Debt outstanding   $ 1,500,000  
5.5% senior unsecured notes due in February 2034 (the 2034 Notes) | Senior Notes      
Debt Instrument [Line Items]      
Debt outstanding   $ 850,000 $ 0
Debt instrument, aggregate principal amount $ 850,000    
Debt stated interest rate 5.50% 5.50% 5.50%
Proceeds from issuance of debt $ 832,300    
Debt issuance costs 17,700    
364-Day Senior Secured Bridge Facility | Bridge Loan | Amicus Therapeutics      
Debt Instrument [Line Items]      
Debt instrument, aggregate principal amount $ 2,800,000   $ 3,700,000
Commitment fees   $ 5,300  
Commitment fees that were deferred   $ 17,500