Benefit Plans - (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Components of net periodic benefit cost
Service cost	$ 87	$ 81	$ 261	$ 243
Interest cost	$ 97	$ 81	$ 291	$ 243
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Interest Cost, Statement of Income or Comprehensive Income [Extensible Enumeration]	Noninterest Income, Other Operating Income	Noninterest Income, Other Operating Income	Noninterest Income, Other Operating Income	Noninterest Income, Other Operating Income
Expected return on assets	$ (178)	$ (156)	$ (534)	$ (468)
Accretion of prior service cost and net loss	(22)	(22)	(66)	(66)
Pension (contra expense) expense	$ (16)	$ (16)	$ (48)	$ (48)