Benefit Plans (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
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	222	214	666	642
Expected return on plan assets	(807)	(712)	(2,420)	(2,135)
Amortization of net gain	0	0	0	0
Amortization of prior service (credit) cost	0	0	0	0
Net periodic benefit	(585)	(498)	(1,754)	(1,493)
Other Postretirement Benefits [Member]
Components of net periodic benefit cost [Abstract]
Service cost	4	9	13	57
Interest cost	52	60	155	143
Expected return on plan assets	(333)	(274)	(999)	(891)
Amortization of net gain	(280)	(137)	(784)	(534)
Amortization of prior service (credit) cost	(78)	177	(235)	227
Net periodic benefit	$ (635)	$ (165)	$ (1,850)	$ (998)