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Other Non-current Assets (Details) - USD ($)
$ in Millions
May 31, 2022
May 31, 2021
Other Non-current Assets    
Contract assets $ 22.5 $ 21.6
License fees 22.2 25.0
Investments in joint ventures 20.0 18.3
Assets under deferred compensation plan 12.4 12.6
Pension assets 9.8 10.4
Other 10.9 10.9
Other non-current assets $ 97.8 $ 98.8