v3.26.1
Taxes - Schedule of provision for income taxes (Details) - USD ($)
$ in Millions
12 Months Ended
May 31, 2026
May 31, 2025
May 31, 2024
Current      
Federal $ 10.9 $ 6.3 $ 3.4
State and local 11.2 1.3 1.2
Non-United States 4.4 2.7 1.5
Total Current 26.5 10.3 6.1
Deferred Income Taxes and Tax Credits [Abstract]      
Federal 2.8 (9.1) 0.5
State and local (3.3) (0.4) (1.3)
Non-United States 2.5 (0.2) (1.2)
Total Deferred 2.0 (9.7) (2.0)
 Total Current and Deferred $ 28.5 $ 0.6 $ 4.1