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Debt (Principal Payments Of Debt) (Details)
$ in Thousands
Sep. 30, 2018
USD ($)
Debt Disclosure [Abstract]  
2018 remaining $ 1,599
2019 72,962
2020 5,296
2021 18,434
2022 307,922
2023 347,815
2024 252,153
2025 293,807
2026 277,291
2027 38,288
Thereafter 102,594
Total $ 1,718,161