v3.24.0.1
Deferred Client Conversion And Start-Up Costs - Schedule of Deferred Client Conversion and Start-up Costs (Details) - USD ($)
$ in Millions
Dec. 31, 2023
Jun. 30, 2023
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]    
Deferred client conversion and start-up costs $ 921.4 $ 925.4
Other start-up costs 9.2 11.5
Total $ 930.6 $ 937.0