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SUPPLEMENTAL EXECUTIVE RETIREMENT PLAN (Tables)
6 Months Ended
Jun. 30, 2019
Defined Benefit Pension Plans And Defined Benefit Postretirement Plans Disclosure [Abstract]  
Components of Net Periodic Pension Cost

The components of net periodic pension cost were as follows (in thousands):

 

 

 

Three Months Ended June 30,

 

 

Six Months Ended June 30,

 

 

 

2019

 

 

2018

 

 

2019

 

 

2018

 

Service cost

 

$

227

 

 

$

325

 

 

$

515

 

 

$

650

 

Interest cost

 

 

403

 

 

 

262

 

 

 

806

 

 

 

524

 

Amortization of prior service cost

 

 

399

 

 

 

421

 

 

 

798

 

 

 

842

 

Amortization of loss

 

 

410

 

 

 

118

 

 

 

821

 

 

 

236

 

Total net periodic benefit cost

 

$

1,439

 

 

$

1,126

 

 

$

2,940

 

 

$

2,252