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Accrued Expenses
12 Months Ended
Dec. 31, 2014
Accrued Expenses [Abstract]  
Accrued Expenses
7. Accrued Expenses

Accrued expenses as of December 31, 2014 and 2013 consisted of the following (in thousands):

  
December 31, 2014
  
December 31, 2013
 
Salaries and related costs
 
$
15,400
  
$
11,686
 
Group health insurance claims
  
2,116
   
2,023
 
Credit balances and overpayments due to patients and payors
  
1,834
   
2,371
 
Other
  
3,489
   
4,545
 
Total
 
$
22,839
  
$
20,625