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Employee Benefit Plans (Tables)
3 Months Ended
Sep. 30, 2016
Compensation and Retirement Disclosure [Abstract]  
Schedule of net periodic pension expense
     
Three Months
 
For the Periods Ended September 30
   
2016
   
2015
   
Service cost – benefits earned during the period
      $ 561         $ 719      
Interest cost on benefit obligation
        543           689      
Expected return on plan assets
        (863)           (742)      
Amortization of net actuarial loss and prior service costs
        347           384      
Net periodic pension expense
      $ 588         $ 1,050