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ACCOUNTS RECEIVABLE
3 Months Ended
Mar. 31, 2014
Receivables [Abstract]  
ACCOUNTS RECEIVABLE
ACCOUNTS RECEIVABLE

Accounts receivable consisted of the following (amounts in thousands):
 
March 31,
2014
 
December 31,
2013
Accounts receivable
$
334,073

 
$
268,340

Allowance for doubtful accounts
(6,046
)
 
(5,287
)
Accounts receivable, net
$
328,027

 
$
263,053


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