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Pension Benefits (Benefit Payments Estimated For Future Years) (Details) - Defined Benefit Pension Plans [Member]
$ in Thousands
Jun. 30, 2018
USD ($)
Defined Benefit Plan Disclosure [Line Items]  
2019 $ 2,364
2020 2,383
2021 2,389
2022 2,401
2023 2,396
2024 - 2028 $ 12,057