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 Taxes [Abstract]
Effective Income Tax Rate	38.70%	37.90%	37.90%	37.20%
Current and Deferred Withholding Tax Expense on Unremitted Foreign Earnings as a Result of a Change in Reinvestment Assertion	$ 3.3		$ 3.3