XML 59 R38.htm IDEA: XBRL DOCUMENT

Income Taxes (Details)	3 Months Ended
Income Taxes (Details)	Mar. 31, 2012	Mar. 31, 2011
Income Tax Disclosure [Abstract]
Effective tax rates (as a percent)	72.80%	(294.40%)

- 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