Stock Option And Stock Award Plans (Summary of SARs) (Details) - $ / shares	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Outstanding, Number	444,718	498,687	521,601	376,440
Share Based Compensation Arrangement By Share Based Payment Award, non-option equity awards, Outstanding, Weighted AverageExercise Price	$ 13.57	$ 13.49	$ 13.55	$ 11.64
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Granted			164,464
Share-based Compensation Arrangements by Share-based Payment Award, non-option equity awards, Grants in Period, Weighted Average Exercise Price			$ 16.37
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Modification	(53,969)	(22,914)	10,043
Share-based Compensation Arrangements by Share-based Payment Award, non-option equity awards, modification, Weighted Average Exercise Price	$ 12.78	$ 14.83	$ 13.01
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period			(9,260)
Share-based Compensation Arrangements by Share-based Payment Award, non-option equity awards, forfeited and expired, Weighted Average Exercise Price			$ 13.87
Minimum
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Share Based Compensation Arrangement By Share Based Payment Award, non-option equity awards, Outstanding, Exercise Price	10.75	10.75	10.75	10.75
Share Based Compensation Arrangements By Share Based Payment Award, non-option equity award, Grants In Period, Exercise Price			16.37
Share Based Compensation Arrangements By Share Based Payment Award, non-option equity award, modification, Exercise Price	10.75	10.75	10.75
Share Based Compensation Arrangements By Share Based Payment Award, non-option equity award, forfeited and expired, Exercise Price			10.75
Maximum
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Share Based Compensation Arrangement By Share Based Payment Award, non-option equity awards, Outstanding, Exercise Price	16.37	16.37	16.37	$ 19.64
Share Based Compensation Arrangements By Share Based Payment Award, non-option equity award, Grants In Period, Exercise Price			16.37
Share Based Compensation Arrangements By Share Based Payment Award, non-option equity award, modification, Exercise Price	$ 16.37	$ 16.37	16.37
Share Based Compensation Arrangements By Share Based Payment Award, non-option equity award, forfeited and expired, Exercise Price			$ 15.25