Fair Value Measurements (Summary Of Financial Assets And Liabilities Measured At Fair Value On Recurring Basis) (Details) - Fair Value, Measurements, Recurring [Member] - Non Qualified Deferred Compensation Assets and Liabilities [Member] - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other long-term assets, net	$ 16,384	$ 16,299
Accrued expense	1,663	1,831
Other long-term liabilities	$ 14,616	$ 15,855