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, 2023	Dec. 31, 2022	Dec. 31, 2023	Dec. 31, 2022
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	$ 12.9	$ 12.9	$ 12.0	$ 12.9
Net increase in contingent consideration liability	0.0	(0.5)	0.8	(0.5)
Foreign currency impact on contingent consideration liability	(0.2)	(0.3)	(0.1)	(0.4)
Payments	(5.2)	0.0	(5.2)	0.0
Ending balance	$ 7.6	$ 12.0	$ 7.6	$ 12.0