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SALE OF ACCOUNTS RECEIVABLE - Additional Information (Details) - USD ($)
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
HSBC Bank    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Sale of receivables $ 20,900,000 $ 18,000,000.0
Receivables purchase agreement    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Receivables purchase agreement - maximum borrowing $ 25,000,000.0  
Agreement period 364 days  
Agreement termination, written notice period 60 days  
Sale of receivables $ 115,400,000 86,000,000.0
Receivables purchase agreement | Selling, general & administrative expense    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Charge related to sale of receivables $ 600,000 $ 500,000