v3.26.3
Derivative Financial Instruments - External Credit Ratings of Underlyings or Referenced Assets (Details) - Index credit default swaps - USD ($)
$ in Millions
Aug. 31, 2026
Nov. 30, 2025
Derivative [Line Items]    
Notional amount $ 1,167.0 $ 924.6
Investment Grade    
Derivative [Line Items]    
Notional amount 422.4 51.4
Non-investment Grade    
Derivative [Line Items]    
Notional amount $ 744.6 $ 873.2