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Benefit Plans 2 (Details) - Pension Benefits [Member] - USD ($)
$ in Thousands
Jun. 30, 2017
Jun. 30, 2016
Information for pension plans with projected benefit obligations and accumulated benefit obligations in excess of plan assets    
Projected benefit obligations $ 24,411 $ 26,605
Accumulated benefit obligations 24,411 26,605
Fair value of plan assets $ 6,530 $ 6,737