Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Jun. 30, 2015
Provision (benefit) for income taxes from continuing operations
Income tax expense	$ 7.2	$ 6.5
Income tax expense as a percent of pre-tax income	44.70%	32.50%
Indefinitely reinvested foreign earnings	$ 112.9		$ 118.5
Discrete deferred tax charge	$ 2.0