Commitments And Contingencies (Changes in Self-insurance Liability) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Commitments and Contingencies Disclosure [Abstract]
Insurance receivable	$ 43,746	$ 57,490
Insurance Related Expenses [Roll Forward]
Balance, beginning of period	627,067	641,779	$ 709,798
Reserves provided	111,067	90,863	83,912
Adjustment to self insurance reserves	(64,965)	(81,131)	(93,431)
Payments	(37,312)	(24,444)	(58,500)
Balance, end of period	$ 635,857	$ 627,067	$ 641,779