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Defined Benefit Plans (Tables)
9 Months Ended
Sep. 30, 2018
Defined Benefit Pension Plans And Defined Benefit Postretirement Plans Disclosure [Abstract]  
Schedule of Net Periodic Benefit Costs

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

 

 

Three Months Ended September 30,

 

(Dollars in thousands)

Pension Benefits

 

 

Other Benefits

 

 

2018

 

 

2017

 

 

2018

 

 

2017

 

Service cost

$

82

 

 

$

9

 

 

$

1

 

 

$

1

 

Interest cost

 

107

 

 

 

11

 

 

 

4

 

 

 

5

 

Expected return on plan assets

 

(106

)

 

 

-

 

 

 

-

 

 

 

-

 

Amortization (accretion) of prior service cost

 

4

 

 

 

4

 

 

 

(5

)

 

 

(6

)

Settlement gain

 

(117

)

 

 

-

 

 

 

-

 

 

 

-

 

Net periodic benefit (income) expense

$

(30

)

 

$

24

 

 

$

-

 

 

$

-

 

 

 

Nine Months Ended September 30,

 

(Dollars in thousands)

Pension Benefits

 

 

Other Benefits

 

 

2018

 

 

2017

 

 

2018

 

 

2017

 

Service cost

$

242

 

 

$

26

 

 

$

3

 

 

$

3

 

Interest cost

 

322

 

 

 

32

 

 

 

13

 

 

 

15

 

Expected return on plan assets

 

(317

)

 

 

-

 

 

 

-

 

 

 

-

 

Amortization (accretion) of prior service cost

 

13

 

 

 

11

 

 

 

(15

)

 

 

(17

)

Settlement gain

 

(497

)

 

 

-

 

 

 

-

 

 

 

-

 

Net periodic benefit (income) expense

$

(237

)

 

$

69

 

 

$

1

 

 

$

1

 

  

For the three and nine months ended September 30, 2018, service costs are reported as a component of salaries and employee benefits on the Consolidated Statements of Income, while interest costs, expected return on plan assets, amortization (accretion) of prior service cost, and settlement gain are reported as a component of other income.  For the three and nine months ended September 30, 2017, service costs were reported as a component of salaries and employee benefits, while interest costs and accretion of prior service costs were reported as a component of other expense.