Income Taxes Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2016	Mar. 31, 2015	Jun. 30, 2015
Income Tax Disclosure [Abstract]
Deferred Tax Assets, Net					$ 6.6
Effective Income Tax Rate Reconciliation, Percent	41.40%	10.40%	35.60%	(33.20%)
Effective Income Tax Rate Reconciliation, Other Adjustments, Amount	$ 0.1		$ 1.3
Deferred Tax Liabilities, Net					$ 6.6