Employee Benefit Plans (Employee Benefits Charged To Operating Expenses) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Total employee benefits	$ 91,086	$ 82,787	$ 78,010
Payroll Taxes [Member]
Total employee benefits	31,507	29,580	28,084
Medical Plans [Member]
Total employee benefits	36,277	31,004	31,131
401K Plan [Member]
Total employee benefits	19,216	18,590	17,237
Pension Plans [Member]
Total employee benefits	499	516	388
Other [Member]
Total employee benefits	$ 3,587	$ 3,097	$ 1,170