Goodwill and Intangible Assets (Carrying Amount Of Goodwill And Intangible Assets) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Schedule of Goodwill and Intangible Assets [Line Items]
Goodwill, Beginning balance	$ 1,388,243
Goodwill, Adjustments	63
Goodwill, Ending balance	1,388,306
Intangible assets, Beginning balance	133,279
Intangible assets, Adjustments	(155)
Intangible assets, Amortization	(5,842)	$ (4,437)
Intangible assets, Ending balance	127,282
Global Wealth Management [Member]
Schedule of Goodwill and Intangible Assets [Line Items]
Goodwill, Beginning balance	335,009
Goodwill, Adjustments	0
Goodwill, Ending balance	335,009
Intangible assets, Beginning balance	28,687
Intangible assets, Adjustments	0
Intangible assets, Amortization	(1,126)
Intangible assets, Ending balance	27,561
Institutional Group [Member]
Schedule of Goodwill and Intangible Assets [Line Items]
Goodwill, Beginning balance	1,053,234
Goodwill, Adjustments	63
Goodwill, Ending balance	1,053,297
Intangible assets, Beginning balance	104,592
Intangible assets, Adjustments	(155)
Intangible assets, Amortization	(4,716)
Intangible assets, Ending balance	$ 99,721