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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
Differences between the U.S. federal statutory rate and the Company's effective tax rate for continuing operations
U.S. federal statutory tax rate (as a percent)	35.00%	35.00%	35.00%	35.00%
Unrecognized tax benefits	$ 0.9		$ 0.9		$ 0.8

The domestic federal statutory tax rate applicable under enacted tax laws to the Company's pretax income from continuing operations for the period. The "statutory" tax rate is the regular tax rate if there are alternative tax systems.

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