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Income Taxes (Tables)
3 Months Ended
Mar. 31, 2014
Income Tax Disclosure [Abstract]  
Income Tax Expense
Income tax expense was as follows:
 
Three Months Ended 
 March 31,
 
2014
 
2013
Current income tax expense
$
14,029

 
$
15,709

Deferred income tax expense (benefit)
(1,933
)
 
(2,118
)
Income tax expense, as reported
$
12,096

 
$
13,591

 
 
 
 
Effective tax rate
16.5
%
 
19.8
%