Annual report pursuant to Section 13 and 15(d)

Goodwill and Intangible Assets, Net of Accumulated Amortization (Components of Intangible Assets, at Cost) (Details)

v3.23.2
Goodwill and Intangible Assets, Net of Accumulated Amortization (Components of Intangible Assets, at Cost) (Details) - USD ($)
$ in Millions
May 31, 2023
May 31, 2022
Intangible Assets [Line Items]    
Total intangible assets, gross $ 661.2 $ 660.4
Less: Accumulated amortization 473.8 435.8
Intangible assets, net of accumulated amortization 187.4 224.6
Other Intangible Assets [Member]    
Intangible Assets [Line Items]    
Total intangible assets, gross 23.0 23.0
Client Lists [Member]    
Intangible Assets [Line Items]    
Total intangible assets, gross $ 638.2 $ 637.4