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Supplemental Cash Flow Information (Tables)
9 Months Ended
Sep. 30, 2012
Supplemental Cash Flow Information [Abstract]  
Schedule Of Supplemental Cash Flow Information
    Three Months Ended     Nine Months Ended  
    September 30,     September 30,  
(in thousands)   2012     2011     2012     2011  
                         
Income taxes paid (refunded), net   $ 1,910     $ (47 )   $ 7,760     $ 6,914  
Interest paid     324       320       957       969