Income Tax Expenses (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Income Tax Disclosure [Abstract]
Earnings from continuing operations before income taxes	$ 41.3	$ 33.0	$ 46.2	$ 55.4
Income tax expense	$ 24.7	$ 17.9	$ 36.7	$ 34.6
Effective tax rate	59.80%	54.20%	79.40%	62.50%