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Retirement Benefit Plans (Tables)
6 Months Ended
Dec. 31, 2014
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
December 31,

 

Six Months Ended
December 31,

 

 

 

2013

 

2014

 

2013

 

2014

 

Service cost

 

$

309 

 

$

266 

 

$

602 

 

$

530 

 

Amortization of prior service cost

 

202 

 

202 

 

404 

 

404 

 

Net periodic pension expense

 

$

511 

 

$

468 

 

$

1,006 

 

$

934