Leases (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
Operating lease expense	$ 0.9	$ 0.9
Short-term Lease [Member]
Operating lease expense	$ 0.9	$ 1.3	$ 2.0	$ 2.7
Minimum [Member]
Operating leases have a remaining lease term			1 year
Maximum [Member]
Operating leases have a remaining lease term			5 years