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Income Taxes (Tables)
3 Months Ended
Mar. 31, 2012
Income Tax Expense (Benefit) [Abstract]  
Income Tax Expense From Continuing Operations And The Effective Tax Rate
The following table presents the income tax expense from continuing operations and the effective tax rate:
 
Three Months Ended
 
March 31,
 
2012
 
2011
 
(Dollars in thousands)
Income tax expense from continuing operations
$
21,292

 
$
16,875

Effective tax rate
24
%
 
29
%