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Benefit Plans 7 (Details)
$ in Thousands
Jun. 30, 2017
USD ($)
Pension Benefits [Member]  
Estimated future benefit payments  
2018 $ 3,200
2019 3,700
2020 3,800
2021 1,300
2022 1,300
2023 through 2027 4,400
Postretirement Health Coverage [Member]  
Estimated future benefit payments  
2018 190
2019 150
2020 130
2021 120
2022 110
2023 through 2027 $ 480