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Employee Retirement Plans (Tables)
6 Months Ended
Jun. 30, 2020
Employee Retirement Plans  
Schedule of Company's net periodic pension cost

The components of the Company’s net periodic pension cost were as follows:

Three Months Ended June 30, 

Six Months Ended June 30, 

    

2020

    

2019

    

2020

    

2019

(Dollars in thousands)

Service cost

$

115

$

128

$

230

$

231

Interest cost

 

506

 

624

 

1,006

 

1,230

Expected return on plan assets

 

(698)

 

(625)

 

(1,388)

 

(1,251)

Net amortization and deferral

 

196

 

167

 

382

 

313

Net periodic pension cost

$

119

$

294

$

230

$

523