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Accrued Expenses (Tables)
12 Months Ended
Dec. 31, 2011
Accrued Expenses

Accrued expenses consisted of the following at December 31, 2011 and 2010 (in thousands):

 

     2011      2010  

Salaries, wages, payroll taxes and benefits

   $ 58,692       $ 39,866   

Workers’ compensation liability

     66,121         63,011   

Property, sales, use and other taxes

     11,850         6,682   

Insurance, other than workers’ compensation

     6,012         12,648   

Accrued interest payable

     4,937         4,879   

Deferred revenue — current

     7,229         10,220   

2009 Performance Unit Awards

     3,640           

Other

     6,148         10,009   
  

 

 

    

 

 

 
   $ 164,629       $ 147,315