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Accounts Payable And Accrued Expenses (Tables)
9 Months Ended
Sep. 30, 2011
Accounts Payable And Accrued Expenses [Abstract] 
Schedule Of Accounts Payable And Accrued Expenses
     September 30, 2011      December 31, 2010  

Accounts payable

   $ 9,835       $ 9,581   

Accrued salaries and bonuses

     114,014         132,221   

Accrued payroll taxes and benefits

     31,018         26,122   

Accrued professional liabilities

     11,688         11,876   

Accrual for uncertain tax positions

     10,452         10,948   

Other accrued expenses

     23,062         17,189   
  

 

 

    

 

 

 
   $ 200,069       $ 207,937