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ACCOUNTS RECEIVABLE (Tables)
12 Months Ended
Dec. 31, 2020
Receivables [Abstract]  
Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]
Accounts receivable at December 31, 2020 and 2019, consisted of the following (amounts in thousands):
 20202019
Accounts receivable$196,796 $188,952 
Allowance for doubtful accounts(3,782)(3,714)
Accounts receivable, net$193,014 $185,238