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Commitments, Contingencies And Other Matters (Operating Lease Commitments And Purchase Options) (Details)
$ in Thousands
Dec. 31, 2018
USD ($)
Commitments, Contingencies And Other Matters [Abstract]  
2019 $ 4,079
2020 2,783
2021 2,748
2022 2,700
2023 2,646
Total $ 14,956