Supplemental Financial Information - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Jun. 30, 2019
Financing receivables
Accounts receivable with contractual maturities	$ 3.4		$ 3.4		$ 4.3
Allowance for credit loss	4.4		4.4		$ 3.6
Property and equipment, net
Depreciation expense	$ 1.8	$ 2.0	$ 3.7	$ 4.1