Profit Sharing And Savings Plan (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended			24 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2023
Defined Benefit Plan Disclosure [Line Items]
Required term of service to be eligible for plan match				6 months 500 hours
Profit Sharing and Savings Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Voluntary contribution, minimum percent of employee pay	2.00%
Voluntary contribution, maximum percent of employee pay	50.00%
Percentage of employee contribution matched by employer	50.00%
Percent of employee pay eligible for matching contributions	6.00%
Employer matching contribution percentage maximum of pay	3.00%
Employer Matching Contribution	$ 7.2	$ 5.9	$ 4.5
Discretionary Employer Contribution	$ 56.2	$ 78.7	$ 71.3