Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Income Tax Disclosure [Abstract]
Effective Income Tax Rate, Continuing Operations	33.80%	39.60%	36.30%	40.50%
Effective Tax Rate Excluding Discrete Expense	34.20%	38.80%	36.50%	38.90%
Discrete tax expense	$ 0.3	$ 0.6	$ 0.3	$ 0.6