Fair Value of Financial Instruments - Schedule of Changes in Level 3 Financial Liabilities (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2024	Dec. 31, 2023
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	$ 14.0	$ 12.9	$ 14.0	$ 12.0
Fair Value Recurring Basis Unobservable Input Reconciliation Liability Gain Loss Statement Of Income Extensible List Not Disclosed Flag	Net increase in contingent consideration liability	Net increase in contingent consideration liability	Net increase in contingent consideration liability	Net increase in contingent consideration liability
Net increase in contingent consideration liability	$ 0.0	$ 0.0	$ 0.0	$ 0.8
Foreign currency impact on contingent consideration liability	0.0	(0.2)	0.0	(0.1)
Payments	0.0	(5.2)	0.0	(5.2)
Ending balance	$ 14.0	$ 7.6	$ 14.0	$ 7.6