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ACCOUNTS RECEIVABLE
 6 Months Ended
Jun. 30, 2015
Receivables [Abstract]  
ACCOUNTS RECEIVABLE
ACCOUNTS RECEIVABLE

Accounts receivable consisted of the following (amounts in thousands):
 
June 30,
2015
 
December 31,
2014
Accounts receivable
$
228,672

 
$
205,084

Allowance for doubtful accounts
(3,983
)
 
(5,706
)
Accounts receivable, net
$
224,689

 
$
199,378


 
Accounts receivable are reduced by an allowance for doubtful accounts which is based on historical losses.