Commitments and Contingencies - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018
Commitment And Contingencies [Line Items]
Lease term			11 years
Non-cancelable operating leases beginning month and year			2019-12
Non-cancelable operating leases expiration month and year			2031-04
Rent expense	$ 0.9	$ 0.6	$ 1.6	$ 1.0
Strategic partnership agreement period			10 years
Online bill payment products expiration month and year			2027-06
Sales and Marketing Expenses
Commitment And Contingencies [Line Items]
Strategic partnership agreement expenses	$ 0.5	$ 0.5	$ 1.0	$ 1.1