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Retirement Agreements And Other Postretirement Benefits (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Retirement Benefits [Abstract]
Liability for employee benefits and other payments	$ 14,200		$ 14,200		$ 13,400
Defined Benefit Plan Disclosure [Line Items]
Service cost - benefits earned during the year	0	$ 0	0	$ 0
Interest cost on the projected benefit obligation	5	8	19	22
Amortization of unrecognized losses	4	0	0	0
Net periodic benefits costs	$ 9	$ 8	$ 19	$ 22

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Amount of liability, recognized in statement of financial position, for defined benefit pension plan. Excludes other postretirement benefit plan.

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