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Retirement Plans and Postretirement Costs (Details 6) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Jun. 30, 2013
Jun. 30, 2012
CHANGE IN PLAN ASSETS:    
Fair value of pension plan assets $ 90,434 $ 79,517
Hedge Funds
   
CHANGE IN PLAN ASSETS:    
Fair value of pension plan assets 5,087 3,160
Net Purchase and Sales 1,420  
Realized and Unrealized Gain, net $ 507