Retirement Plans and Other Postretirement Benefits (Tables)

3 Months Ended

Mar. 31, 2025

Retirement Benefits [Abstract]

Components of Net Periodic Benefit Cost (Income)

Information with respect to the Retirement Plans and Other Postretirement Benefits follows: 

	Three Months Ended March 31,
	2025		2024		2025		2024
(Dollars in thousands)	Retirement Plans				Other Post Retirement Benefits
Service cost	$	132	$	148	$	11	$	14
Interest cost	604		592		27		27
Expected loss on plan assets	(891)		(871)		—		—
Amortization of net actuarial loss (gain)	63		175		(11)		(28)
Net periodic benefit (income) cost	$	(92)	$	44	$	27	$	13