Leases - Lessor, Lease Income (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
	Dec. 31, 2019	Dec. 31, 2019
Leases [Abstract]
Revenues	$ 5.9	$ 15.8
Cost of revenues	(7.4)	(15.2)
Interest income	0.2	0.2
Total lease income (loss)	$ (1.3)	$ 0.8