Stock-Based Compensation (Schedule Of Stock Options Activity) (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options Exercised	(15,344)	(22,270)	(19,715)
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options Balance, Beginning	193,644
Options Exercised	(22,689)
Options Expired	(11,151)
Options Forfeited	(4,444)
Options Balance, Ending	155,360	193,644
Options Exercisable, Ending	136,583
Weighted Average Exercise Price, Balance, Beginning	$ 31.21
Weighted Average Exercise Price, Exercised	21.20
Weighted Average Exercise Price, Expired	37.38
Weighted Average Exercise Price, Forfeited	30.63
Weighted Average Exercise Price, Balance, Ending	32.25	$ 31.21
Weighted Average Exercise Price, Exercisable, Ending	$ 32.46
Weighted Average Remaining Contractual Term (years), Balance, Ending	4 years 3 months 18 days
Weighted Average Remaining Contractual Term (years), Exercisable, Ending	3 years 10 months 20 days
Aggregate Intrinsic Value, Balance, Ending	$ 504
Aggregate Intrinsic Value, Balance, Exercisable, Ending	$ 435