Income Taxes (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012
Income Tax Disclosure [Abstract]
Effective Income Tax Rate, Continuing Operations	40.00%	35.30%	36.60%	31.10%
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	$ 0.2		$ 0.2		$ 0.2