Employee Benefit Plans (Schedule of Changes in Benefit Obligation and Plan Assets) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Supplemental Executive Retirement Plan [Member]
Benefit obligations:
Beginning of year	$ 16,610	$ 16,031
Service cost	534	504	$ 464
Interest cost	460	389	460
Actuarial (gain) loss	(1,996)	222
Defined Benefit Plan, Benefit Obligation, Benefits Paid	566	536
End of year	15,042	16,610	16,031
Fair value of plan assets:
Beginning of year	0	0
Employer contributions	566	536
Defined Benefit Plan, Plan Assets, Benefits Paid	566	536
End of year	0	0	0
Unfunded status at end of year(1)	15,042	16,610
Amounts recognized in accumulated other comprehensive loss
Net actuarial loss (gain)	412	2,653
Prior service credit	0	0
Total	412	2,653
Other Postretirement Benefits Plan [Member]
Benefit obligations:
Beginning of year	4,167	4,420
Service cost	21	26	28
Interest cost	111	103	123
Actuarial (gain) loss	(863)	(202)
Defined Benefit Plan, Benefit Obligation, Benefits Paid	175	180
End of year	3,261	4,167	4,420
Fair value of plan assets:
Beginning of year	0	0
Employer contributions	175	180
Defined Benefit Plan, Plan Assets, Benefits Paid	175	180
End of year	0	0	$ 0
Unfunded status at end of year(1)	3,261	4,167
Amounts recognized in accumulated other comprehensive loss
Net actuarial loss (gain)	(29)	718
Prior service credit	(76)	(94)
Total	$ (105)	$ 624