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Retirement Benefit Plans (Tables)
9 Months Ended
Mar. 31, 2015
Retirement Benefit Plans  
Schedule of net periodic pension expense

The Company sponsors various retirement benefit plans including qualified and nonqualified defined benefit pension plans for its employees. The components of net periodic pension expense are as follows (in thousands):

 

 

 

Three Months Ended
March 31,

 

Nine Months Ended
March 31,

 

 

 

2014

 

2015

 

2014

 

2015

 

Service cost

 

$

288 

 

$

249 

 

$

890 

 

$

779 

 

Amortization of prior service cost

 

202 

 

202 

 

606 

 

606 

 

Net periodic pension expense

 

$

490 

 

$

451 

 

$

1,496 

 

$

1,385