Leases - Narrative (Details) $ in Millions	3 Months Ended	6 Months Ended
	Dec. 31, 2019 USD ($)	Dec. 31, 2019 USD ($)
Lessee, Lease, Description [Line Items]
Weighted average remaining lease term	1 year 3 days	1 year 3 days
Weighted average discount rate (in percentage)	4.92%	4.92%
Operating lease expense	$ 0.7	$ 1.3
Minimum
Lessee, Lease, Description [Line Items]
Lease term	1 year	1 year
Maximum
Lessee, Lease, Description [Line Items]
Lease term	2 years	2 years