Retirement Plans - Schedule of Net Pension Cost (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Components of net pension cost
Service cost - benefits earned during the year	$ 221	$ 256
Interest costs on projected benefit obligations	399	372
Expected return on plan assets	(585)	(590)
Expected administrative expenses	36	27
Amortization of unrecognized net gain	(272)	(159)
Net periodic pension income	$ (201)	$ (94)