Income Taxes (Reconciliation Of The Statutory Federal Income Tax With The Company's Effective Tax Rate) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Components of Income Tax Expense (Benefit), Continuing Operations [Abstract]
Statutory rate	$ 194,973	$ 148,405	$ 185,874
State income taxes, net of federal income tax	35,986	34,012	42,813
Non-deductible business expenses	16,857	25,177	10,944
Change in valuation allowance	10,565	21,931	9,802
Foreign tax rate difference	(3,104)	(2,471)	(2,846)
Federal tax credits	(14,396)	(7,002)	(2,793)
Excess tax benefit from stock-based compensation	(44,717)	(31,109)	(19,418)
Other, net	901	(4,787)	(1,415)
Provision for income taxes	$ 197,065	$ 184,156	$ 222,961