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Income Taxes (Tables)
6 Months Ended
Jun. 30, 2011
Income Tax Disclosure [Abstract]  
Reconciliation of Unrecognized Tax Benefits [Table Text Block]
A reconciliation of the beginning and ending amount of unrecognized tax benefits is as follows:
 
(in thousands)
Balance at December 31, 2010
$
18,140


Additions based on tax positions related to current year
577


Additions for tax positions of prior years


Reductions for tax positions of prior years
(15
)
Reductions due to lapse of applicable statute of limitations
(3,278
)
Settlements


Balance at June 30, 2011
$
15,424