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Income Taxes Income Taxes (Tables)
6 Months Ended
Jun. 30, 2012
Income Taxes [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 (benefit) recognized is as follows:
 
 
Three Months Ended June 30,
 
Six Months Ended June 30,
 
2012
 
2011
 
2012
 
2011
 
(in thousands)
Net interest and penalties expense (benefit)
$
(22
)
 
$
113

 
$
265

 
$
108


Accrued interest and penalties recorded are as follows:

 
June 30, 2012
 
December 31, 2011
 
(in thousands)
Accrued interest
$
3,929

 
$
3,781

Accrued penalties
2,587

 
2,766


Unrecognized tax benefits related to uncertain tax positions and the amount of unrecognized tax benefits that, if recognized, would affect our effective tax rate are as follows:
 
 
June 30, 2012
 
December 31, 2011
 
(in thousands)
Unrecognized tax benefits related to uncertain tax positions
$
24,966

 
$
24,737

The amount of unrecognized tax benefits that, if recognized, would affect our effective tax rate
24,560

 
24,451