Income Taxes (Summary Of Deferred Tax Assets And Liabilities) (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Income Tax Disclosure [Abstract]
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Allowance for Doubtful Accounts	$ 4,102	$ 4,395
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits	3,279	3,538
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Pensions	1,200	1,112
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Accrued Liabilities	1,265	1,693
Deferred Tax Assets, Investments	40,380	0
Deferred Tax Assets, Other	4,812	4,876
Total Deferred Tax Assets	55,038	15,614
Deferred Tax Liabilities, Investments	0	5,680
Deferred Tax Liabilities, Other	10,154	9,871
Deferred Tax Liabilities, Gross	10,154	15,551
Deferred Income Tax Assets, Net	$ 44,884	$ 63