Income Taxes (Schedule of Components of Income Tax Expense (Benefit)) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Income Tax Disclosure [Abstract]
Current Expense, Domestic	$ 352,891	$ 295,849	$ 239,090
Deferred Expense (Benefit), Domestic	(43,456)	(27,544)	2,752
Domestic, Total	309,435	268,305	241,842
Current Expense, Foreign	44,372	42,890	0
Deferred Expense (Benefit), Foreign	16,750	23,532	10,048
Foreign, Total	61,122	66,422	10,048
Current Expense, Total	397,263	338,739	239,090
Deferred Expense (Benefit), Total	(26,706)	(4,012)	12,800
Total expense	370,557	334,727	251,890
Income (Loss) from Continuing Operations before Income Taxes, Domestic	1,430,000	1,240,000	1,224,000
Income (Loss) from Continuing Operations before Income Taxes, Foreign	$ 324,000	$ 480,000	$ 59,000