Retirement Agreements And Other Postretirement Benefits (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Retirement Benefits [Abstract]
Liability for employee benefits and other payments	$ 15,100		$ 15,100		$ 15,000
Defined Benefit Plan Disclosure [Line Items]
Service cost - benefits earned during the year	0	$ 0	0	$ 0
Interest cost on the projected benefit obligation	10	5	30	19
Amortization of unrecognized (gain) loss	(7)	4	(21)	0
Net periodic benefits costs	$ 3	$ 9	$ 9	$ 19