v3.26.1
Employee benefit and stock plans (Tables)
3 Months Ended
Mar. 31, 2026
Employee benefit and stock plans  
Schedule of components of net periodic benefit cost

Three Months Ended March 31, 

Pension Benefits

(Dollars in thousands)

2026

2025

Net periodic pension benefit:

  ​ ​ ​

  ​ ​ ​

Interest cost

$

158

$

165

Expected return on plan assets

 

(242)

 

(337)

Amortization of unrecognized net loss

 

2

 

35

Net periodic pension benefit

$

(82)

$

(137)