Revenue - Changes in Customer Deposits (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Movement in Liability for Customer Deposits [Roll Forward]
Balance at the beginning of the year	$ 24.4	$ 19.6
Customer deposits acquired in Poppin acquisition	0.0	2.0
Increases due to deposits received, net of other adjustments	94.0	82.3
Revenue recognized	(88.7)	(79.5)
Balance at the end of the year	$ 29.7	$ 24.4