XML 1087 R69.htm IDEA: XBRL DOCUMENT v3.7.0.1
Benefit Plans 5 (Details)
$ in Thousands
12 Months Ended
Jun. 30, 2017
USD ($)
One-Percentage Point Change in Assumed Health Care Cost Trend Rates  
Effect on total service and interest cost components of periodic expense (Increase) $ 15
Effect on total service and interest cost components of periodic expense (Decrease) (12)
Effect on postretirement benefit obligation (Increase) 159
Effect on postretirement benefit obligation (Decrease) $ (135)