Leases - Lease Cost (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2023	Mar. 31, 2022
Leases [Abstract]
Operating lease cost	$ 33.5	$ 36.4	$ 101.3	$ 108.9
Short-term lease cost	0.8	0.3	1.5	0.8
Variable lease cost	4.7	2.9	11.5	8.2
Total operating lease cost	$ 39.0	$ 39.6	$ 114.3	$ 117.9