Goodwill and Intangible Assets (Carrying Amount Of Goodwill And Intangible Assets) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Schedule of Goodwill and Intangible Assets [Line Items]
Goodwill, Beginning balance			$ 1,388,243
Goodwill, Adjustments			5,848
Goodwill, Ending balance	$ 1,394,091		1,394,091
Intangible assets, Beginning balance			133,279
Intangible assets, Adjustments			1,598
Intangible assets, Amortization	(5,900)	$ (4,800)	(17,710)	$ (13,872)
Intangible assets, Ending balance	117,167		117,167
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		335,009
Intangible assets, Beginning balance			28,687
Intangible assets, Adjustments			0
Intangible assets, Amortization			(3,305)
Intangible assets, Ending balance	25,382		25,382
Institutional Group [Member]
Schedule of Goodwill and Intangible Assets [Line Items]
Goodwill, Beginning balance			1,053,234
Goodwill, Adjustments			5,848
Goodwill, Ending balance	1,059,082		1,059,082
Intangible assets, Beginning balance			104,592
Intangible assets, Adjustments			1,598
Intangible assets, Amortization			(14,405)
Intangible assets, Ending balance	$ 91,785		$ 91,785