Leases - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2018
Lessee, Lease, Description [Line Items]
Operating lease, remaining lease term	1 year
Operating lease, weighted average remaining lease term	7 months 13 days
Operating lease, weighted average discount rate, percent	4.95%
Operating lease expense	$ 2.7
Operating leases rent expense		$ 2.7	$ 2.7
Minimum
Lessee, Lease, Description [Line Items]
Operating lease, contract term	3 years
Maximum
Lessee, Lease, Description [Line Items]
Operating lease, contract term	11 years