Income Tax Expense (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Income Tax Expense [Abstract]
Earnings from continuing operations before income taxes	$ 58.1	$ 82.0	$ 139.9	$ 153.6
Income tax expense	$ 26.3	$ 26.1	$ 70.2	$ 63.9
Effective tax rate	45.30%	31.80%	50.20%	41.60%