Other Non-Current Assets - Schedule of Other Non-Current Assets (Details) - USD ($) $ in Millions	Dec. 31, 2024	Jun. 30, 2024
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Long-term investments	$ 284.8	$ 271.1
ROU assets	177.8	186.2
Deferred sales commissions costs	124.7	131.2
Contract assets	118.4	125.3
Long-term broker fees	30.5	34.9
Deferred data center costs	$ 10.0	$ 11.8
Derivative Asset, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Total	Total
Other	$ 112.1	$ 110.1
Total	858.3	870.6
Derivative asset	$ 63.9	$ 59.9