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LONG-TERM DEBT - Schedule of Maturities of Long-term Debt (Details)
$ in Thousands
Dec. 31, 2019
USD ($)
Debt Disclosure [Abstract]  
2020 $ 3,000
2021 3,000
2022 3,000
2023 3,000
2024 3,000
Thereafter 683,500
Long-term debt, including current portion $ 698,500