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Pension and Other Postretirement Benefits (Details 5) (Other postretirement benefit plans [Member], USD $)
In Thousands, unless otherwise specified
Jun. 30, 2014
Jun. 30, 2013
Other postretirement benefit plans [Member]
   
Defined Benefit Plan, Amounts Recognized in Other Comprehensive Income (Loss) [Abstract]    
Unrecognized Net Actuarial Losses $ 8,554 $ 5,213
Unrecognized Net Prior Service Credits (452) (563)
Total $ 8,102 $ 4,650