Benefit Plans (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Components of net periodic benefit cost [Abstract]
Contribution made to pension and postretirement plans			$ 0
Pension Benefits [Member]
Components of net periodic benefit cost [Abstract]
Service cost	$ 0	$ 0	0	$ 0
Interest cost	289	304	578	606
Expected return on plan assets	(762)	(661)	(1,524)	(1,341)
Amortization of net gain	(19)	0	(38)	0
Amortization of prior service cost	0	0	0	0
Net periodic benefit	(492)	(357)	(984)	(735)
Other Postretirement Benefits [Member]
Components of net periodic benefit cost [Abstract]
Service cost	4	3	9	5
Interest cost	72	66	144	132
Expected return on plan assets	(332)	(290)	(663)	(579)
Amortization of net gain	(183)	(114)	(367)	(228)
Amortization of prior service cost	3	3	6	6
Net periodic benefit	$ (436)	$ (332)	$ (871)	$ (664)