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Accrued Payroll Costs and Retirement Obligations (Tables)
6 Months Ended
Jun. 30, 2011
Accrued Payroll Costs and Retirement Obligations  
Accrued Payroll Costs and Retirement Obligations
     June 30,
2011
     December 31,
2010
 

Payroll and benefits

   $ 176,670       $ 153,329   

Employee retirement obligations

     83,283         80,716   

Workers' compensation

     24,992         24,136   

Payroll taxes

     38,708         56,466   
                 
   $ 323,653       $ 314,647   
                 
Employee Retirement Obligations
     June 30,
2011
     December 31,
2010
 

Deferred compensation plan and other benefits related to the Company's Chief Executive Officer

   $ 69,761       $ 67,891