XML 33 R23.htm IDEA: XBRL DOCUMENT

Income Taxes (Details)	3 Months Ended
Income Taxes (Details)	Mar. 31, 2013	Mar. 31, 2012
Income Taxes
Effective income tax rate (as a percent)	39.70%	41.10%

- Definition

A ratio calculated by dividing the reported amount of income tax expense attributable to continuing operations for the period by GAAP-basis pretax income from continuing operations.

+ References+ Details