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Defined Benefit Plans
 3 Months Ended
Mar. 31, 2018
Defined Benefit Pension Plans And Defined Benefit Postretirement Plans Disclosure [Abstract]  
Defined Benefit Plans

(8)

Defined Benefit Plans

Mid Penn has an unfunded noncontributory defined benefit retirement plan for directors.  The plan provides defined benefits based on years of service.  Mid Penn also sponsors a defined benefit health care plan that provides post-retirement medical benefits and life insurance to qualifying full-time employees.  These health care and life insurance plans are noncontributory.  Also, as a result of the acquisition of Scottdale on January 8, 2018, Mid Penn has assumed a noncontributory defined benefit pension plan covering certain former employees of Scottdale.  A December 31 measurement date for the plans is used.

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

 

 

Three Months Ended March 31,

 

(Dollars in thousands)

Pension Benefits

 

 

Other Benefits

 

 

2018

 

 

2017

 

 

2018

 

 

2017

 

Service cost

$

9

 

 

$

9

 

 

$

1

 

 

$

1

 

Interest cost

 

9

 

 

 

11

 

 

 

4

 

 

 

5

 

Amortization (accretion) of prior service cost

 

4

 

 

 

3

 

 

 

(5

)

 

 

(6

)

Net periodic benefit cost

$

22

 

 

$

23

 

 

$

-

 

 

$

-