v3.24.2.u1
Deferred Client Conversion and Start-Up Costs - Additional Information (Details) - USD ($)
$ in Millions
12 Months Ended
Jun. 30, 2024
Jun. 30, 2023
Finite-Lived Intangible Assets [Line Items]    
Deferred client conversion and start-up costs $ 892.1 $ 937.0
Deferred client conversion and start-up costs 884.5 925.4
Other start-up costs 7.6 11.5
Amortization of deferred costs $ 132.9 $ 94.9