Income Taxes Narrative (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Continuing operations [Member]
Income Taxes [Line Items]
Effective income tax rate (percent)	29.60%	28.90%	30.20%	28.80%
Federal income tax rate (percent)	35.00%	35.00%	35.00%	35.00%
Discontinued Operations [Member]
Income Taxes [Line Items]
Effective income tax rate (percent)	37.10%	37.10%	37.10%	37.10%