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Accrued Liabilities
12 Months Ended
Dec. 31, 2011
Accrued Liabilities  
Accrued Liabilities

9. Accrued Liabilities

        Other current liabilities consisted of the following at December 31:

(in thousands)
  2011   2010  

Payroll and incentive compensation

  $ 10,435   $ 6,022  

Union dues and benefits

    6,617     4,947  

Profit sharing and thrift plan

    2,780     466  

Taxes, other than income taxes

    3,929     1,956  

Other

    5,317     4,583  
           

 

  $ 29,078   $ 17,974