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FINANCING ARRANGEMENTS AND LONG-TERM DEBT - Annual Maturities of Debt Obligations Tables (Details) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Aggregate annual maturities of debt obligations    
2020 $ 11,000  
2021 75,863  
Long-term debt, total $ 86,863 $ 99,113