v3.26.1
Leases - Schedule of Components of Lease Expense (Detail) - USD ($)
$ in Millions
12 Months Ended
May 31, 2026
May 31, 2025
May 31, 2024
Leases [Abstract]      
Operating lease cost $ 14.3 $ 11.4 $ 10.1
Finance lease cost:      
Amortization of right-of-use asset 2.5 0.0 0.0
Interest expense 0.2 0.0 0.0
Short-term lease cost 1.3 3.0 2.6
Variable lease cost 3.7 3.7 2.3
Total lease cost $ 22.0 $ 18.1 $ 15.0