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REVOLVING CREDIT FACILITIES AND BANK BORROWINGS (Schedule of the Company's Borrowings) (Details) - USD ($)
$ in Thousands
Sep. 30, 2019
Dec. 31, 2018
Debt Instrument [Line Items]    
Less: Current portion of borrowings $ 0 $ 0
Total long-term borrowings 185,000 120,000
Revolving credit facilities    
Debt Instrument [Line Items]    
Revolving credit facilities $ 185,000 $ 120,000