Employee Benefit Plans (Narrative) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined benefit plan, discretionary contribution by employer	$ 0	$ 0	$ 0
Minimum Required Contribution, Next Fiscal Year	0
Contributions to the CERP	806,000	$ 14,000	$ 14,000
Increase (Decrease) in Obligation, Pension Benefits	(3,300,000)
Defined Benefit Plan Fair Value Of Plan Assets Period Increase (Decrease) more than expected	$ 4,300,000
Determination of benefit obligation at year end, Discount rate	4.98%	5.19%	2.58%
Accumulated benefit obligation	$ 93,900,000	$ 95,800,000
Expected long-term rate of return on pension plan assets	4.75%	4.25%	4.25%
Annualized 10-year return for pension plan	4.90%
Rate of return	10.30%	(12.00%)
Expected pension expense for the upcoming fiscal year	$ 1,700,000
Pension expense	$ 2,300,000
Equity securities [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Long-term investment target mix	10.00%
Fixed Income Securities [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Long-term investment target mix	90.00%