v3.26.3
Derivative Instruments and Hedging Activities - Schedule of Derivatives Offsetting (Details) - USD ($)
$ in Thousands
Aug. 31, 2026
May 31, 2026
Derivative [Line Items]    
Derivative asset, fair value, amount not offset against collateral $ 637,736 $ 554,116
Derivative liability, fair value, amount not offset against collateral 32,448 31,414
Interest rate swaps    
Derivative [Line Items]    
Derivative asset, fair value, gross asset 637,736 554,116
Derivative asset, fair value, gross liability 0 0
Derivative asset, fair value, amount not offset against collateral 637,736 554,116
Derivative, collateral, obligation to return securities 31,959 30,572
Derivative, collateral, obligation to return cash 0 0
Derivative asset, fair value, amount offset against collateral 605,777 523,544
Derivative liability, fair value, gross liability 32,448 31,414
Derivative liability, fair value, gross asset 0 0
Derivative liability, fair value, amount not offset against collateral 32,448 31,414
Derivative, collateral, right to reclaim securities 31,959 30,572
Derivative, collateral, right to reclaim cash 0 0
Derivative liability, fair value, amount offset against collateral $ 489 $ 842