Supplemental Financial Information - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2020	Mar. 31, 2019	Jun. 30, 2019
Financing receivables
Accounts receivable with contractual maturities	$ 4.3		$ 4.3		$ 4.3
Allowance for credit loss	4.4		4.4		$ 3.6
Property and equipment, net
Depreciation expense	$ 1.8	$ 1.9	$ 5.5	$ 6.0