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Income Taxes Income Taxes (Tables)
6 Months Ended
Jun. 30, 2014
Income Tax Uncertainties [Abstract]  
Unrecognized Tax Benefits Related To Uncertain Tax Positions [Table Text Block]
We classify interest expense and penalties related to unrecognized tax liabilities and interest income on tax overpayments as components of income tax expense. The net interest and penalties expense recognized were as follows:
 
 
Three Months Ended June 30,
 
Six Months Ended June 30,
 
2014
 
2013
 
2014
 
2013
 
(in thousands)
Net interest and penalties expense
$
1,782

 
$
168

 
$
1,239

 
$
339


Accrued interest and penalties recorded were as follows:

 
June 30, 2014
 
December 31, 2013
 
(in thousands)
Accrued interest
$
2,020

 
$
2,078

Accrued penalties
4,426

 
3,075


Unrecognized tax benefits related to uncertain tax positions and the amount of unrecognized tax benefits that, if recognized, would affect our effective tax rate were as follows:
 
 
June 30, 2014
 
December 31, 2013
 
(in thousands)
Unrecognized tax benefits related to uncertain tax positions
$
39,262

 
$
28,615

The amount of unrecognized tax benefits that, if recognized, would affect our effective tax rate
38,044

 
27,694