XML 33 R49.htm IDEA: XBRL DOCUMENT

Income Taxes (Details)	6 Months Ended	12 Months Ended
Income Taxes (Details)	Jun. 30, 2013	Dec. 31, 2012
Income Tax Rate [Line Items]
Effective tax rate less valuation allowance reduction in certain deferred tax liabilities and changes in state tax apportionment (as a percent)	35.00%
Estimate
Income Tax Rate [Line Items]
Effective tax rate (as a percent)	41.00%	10.00%
Effective tax rate without reduction from lapsing uncertain tax position (as a percent)	46.00%

- 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