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Accrued Expenses (Tables)
 12 Months Ended
Dec. 31, 2011
Accrued Expenses [Abstract]  
Schedule Of Accrued Expenses
     As of
December 31, 2011		      As of
December 31, 2010		  
     (in thousands)  

Accrued earnouts

    $ 5,534       $ 3,263   

Salaries and benefits

      5,432         5,087   

Real estate and property taxes

      5,557         6,001   

Other

      7,223         7,078   
  

 

 

     

 

 

  
   $ 23,746       $ 21,429