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Fair Value Measurements (Tables)
3 Months Ended
Mar. 31, 2012
Fair Value Measurements  
Schedule of assets and liabilities measured at fair value on a recurring basis

 

 
  March 31, 2012  
 
  Level 1   Level 2   Level 3   Total  
 
  (in thousands)
 

Location and Description

                         

Cash equivalents

  $ 176,974   $   $   $ 176,974  

Other current assets (marketable securities)

    28             28  

Other current assets (other derivative agreements)

        994         994  

Other long-term assets (other derivative agreements)

        19         19  
                   

Total Assets

  $ 177,002   $ 1,013   $   $ 178,015  
                   

Other current liabilities (other derivative agreements)

        (42,751 )       (42,751 )

Other current liabilities (interest rate swap)

        (965 )       (965 )

Other long-term liabilities (other derivative agreements)

        (5,211 )       (5,211 )

Other long-term liabilities (interest rate swap)

        (1,427 )       (1,427 )
                   

Total Liabilities

  $   $ (50,354 ) $   $ (50,354 )
                   

 

 
  December 31, 2011  
 
  Level 1   Level 2   Level 3   Total  
 
  (in thousands)
 

Location and Description

                         

Cash equivalents

  $ 187,327   $   $   $ 187,327  

Other current assets (marketable securities)

    25             25  

Other current assets (other derivative agreements)

        63,051         63,051  

Other long-term assets (other derivative agreements)

        18,831         18,831  
                   

Total Assets

  $ 187,352   $ 81,882   $   $ 269,234  
                   

Other current liabilities (interest rate swap)

        (905 )       (905 )

Other long-term liabilities (interest rate swap)

        (1,483 )       (1,483 )
                   

Total Liabilities

  $   $ (2,388 ) $   $ (2,388 )