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Derivatives and Hedging (Details) - Not Designated as Hedging Instrument - Foreign Exchange Contract - USD ($)
$ in Millions
9 Months Ended
Feb. 28, 2026
Feb. 28, 2025
Derivative Instruments, Gain (Loss) [Line Items]    
Derivative, notional amount $ 21.3 $ 22.8
Unrealized gain (loss) on foreign currency derivatives, net, before tax $ (0.6) $ 0.9