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Defined Benefit Plans (Tables)
 3 Months Ended
Mar. 31, 2016
Defined Benefit Plans [Abstract]  
Schedule of Net Periodic Benefit Costs

The components of net periodic benefit costs from these benefit plans are as follows:





 

 

 

 

 

 

 

 

 

 

 



 

 

 

 

 

 

 

 

 

 

 



Three Months Ended March 31,

(Dollars in thousands)

Pension Benefits

 

Other Benefits



2016

 

2015

 

2016

 

2015

Service cost

$

 9 

 

$

 8 

 

$

 1 

 

$

 3 

Interest cost

 

 12 

 

 

 11 

 

 

 6 

 

 

 8 

Amortization of prior service cost

 

 5 

 

 

 4 

 

 

 6 

 

 

 -

       Net periodic benefit cost

$

 26 

 

$

 23 

 

$

 13 

 

$

 11