v3.25.1
Deferred Client Conversion And Start-Up Costs - Schedule of Deferred Client Conversion and Start-Up Costs (Details) - USD ($)
$ in Millions
Mar. 31, 2025
Jun. 30, 2024
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]    
Deferred client conversion and start-up costs $ 841.3 $ 884.5
Other start-up costs 6.1 7.6
Total $ 847.4 $ 892.1