Defined Benefit Post-Retirement Plans (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Defined Benefit Post-Retirement Plans [Abstract]
Employer contributions	$ 0	$ 0
Pension Benefits [Member]
Components of net periodic cost (benefit) [Abstract]
Service cost	482	534
Interest cost	1,010	694
Expected return on plan assets	(1,853)	(2,228)
Net amortization	670	185
Net periodic pension cost (benefit)	309	(815)
Other Benefits [Member]
Components of net periodic cost (benefit) [Abstract]
Service cost	1	2
Interest cost	56	41
Expected return on plan assets	0	0
Net amortization	(21)	1
Net periodic pension cost (benefit)	$ 36	$ 44