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ACCOUNTS RECEIVABLE
12 Months Ended
Dec. 31, 2019
Receivables [Abstract]  
ACCOUNTS RECEIVABLE ACCOUNTS RECEIVABLE

Accounts receivable at December 31, 2019 and 2018, consisted of the following (amounts in thousands):
 
2019
 
2018
Accounts receivable
$
188,952

 
$
245,236

Allowance for doubtful accounts
(3,714
)
 
(3,404
)
Accounts receivable, net
$
185,238

 
$
241,832



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