Quarterly report pursuant to Section 13 or 15(d)

Funds Held for Clients and Corporate Investments (Realized Gains and Losses from Sale of Available-for-sale Securities) (Details)

v3.23.4
Funds Held for Clients and Corporate Investments (Realized Gains and Losses from Sale of Available-for-sale Securities) (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Nov. 30, 2023
Nov. 30, 2022
Nov. 30, 2023
Nov. 30, 2022
Funds Held for Clients and Corporate Investments [Abstract]        
Gross realized gains $ 0.0 $ 0.0 $ 0.0 $ 0.1
Gross realized losses   0.0 0.0 0.0
Net realized (losses)/gains $ (0.0) $ (0.0) $ (0.0) $ 0.1