Stock-Based Compensation (Summary Of SAR Activity) (Details) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2024 USD ($) $ / shares shares
Stock Appreciation Rights [Roll Forward]
Rights Outstanding, Beginning Balance | shares	1,023,321
Rights Granted | shares	117,974
Rights Forfeited | shares	(781)
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Expired In Period | shares	(4,025)
Rights Exercised | shares	(46,457)
Rights Outstanding, Ending Balance | shares	1,090,032
Weighted Average Exercise Price Outstanding, Beginning Balance | $ / shares	$ 47.10
Weighted Average Exercise Price Granted | $ / shares	52.00
Weighted Average Exercise Price Forfeited | $ / shares	57.43
Weighted Average Exercise Price Expired | $ / shares	43.81
Weighted Average Exercise Price Exercised | $ / shares	27.89
Weighted Average Exercise Price Outstanding, Ending Balance | $ / shares	$ 48.46
Weighted Average Remaining Contractual Term	5 years 3 months 18 days
Aggregate Intrinsic Value | $	$ 7,960