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Accounts Receivable (Tables)
 6 Months Ended
Jun. 30, 2014
Accounts Receivable [Abstract]  
Schedule Of Accounts Receivable

 

 

 

 

 

 

 

 

 

 

 

 

 

December 31,

 

June 30,

 

2013

 

2014

Trade receivables

$
18,398 

 

$
18,793 

Unpaid amounts for benefit services

 
14,932 

 

 
20,919 

 

 
33,330 

 

 
39,712 

Less allowance for doubtful accounts

 
(467)

 

 
(813)

Accounts receivable, net

$
32,863 

 

$
38,899