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LONG-TERM DEBT AND LINES OF CREDIT - Maturities of Long-Term Debt (Details)
$ in Thousands
Sep. 30, 2019
USD ($)
Debt Disclosure [Abstract]  
2019 $ 11,536
2020 22,953
2021 754,906
2022 50,038
2023 1,300,000
2024 2,533,000
2025 and thereafter 4,200,000
Total $ 8,872,433