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Long-Term Debt (Aggregate Maturities Of Long-Term Debt) (Details)
$ in Thousands
Dec. 31, 2019
USD ($)
Debt Disclosure [Abstract]  
2020 $ 1,051,643
2021 340,555
2022 564,339
2023 603,770
2024 2,635
Thereafter 10,073
Aggregate maturities of long-term debt $ 2,573,015