v3.26.1
Components of Net Periodic Benefit Cost (Tables)
3 Months Ended
Mar. 31, 2026
Components of Net Periodic Benefit Cost  
Schedule of Net Periodic Benefit Costs

Three Months Ended March 31, 

Post-Retirement

Pension Benefits

Health Benefits

(Dollar amounts in thousands)

2026

  ​ ​ ​

2025

2026

  ​ ​ ​

2025

Service cost

$

104

$

108

$

5

$

3

Interest cost

 

990

 

1,016

 

37

 

32

Expected return on plan assets

 

(1,216)

 

(1,094)

 

 

Net amortization of prior service cost

 

 

 

 

Net amortization of net (gain) loss

(30)

(39)

Net Periodic Benefit Cost

$

(122)

$

30

$

12

$

(4)