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ACCOUNTS RECEIVABLE (Tables)
6 Months Ended
Jun. 30, 2020
Receivables [Abstract]  
Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]

Accounts receivable consisted of the following (amounts in thousands):
 
June 30,
2020
 
December 31,
2019
Accounts receivable
$
195,786

 
$
188,952

Allowance for doubtful accounts
(3,376
)
 
(3,714
)
Accounts receivable, net
$
192,410

 
$
185,238