Goodwill and Intangible Assets (Carrying Amount Of Goodwill And Intangible Assets) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Schedule of Goodwill and Intangible Assets [Line Items]
Goodwill, Beginning balance			$ 1,306,892
Goodwill, Adjustments			2,400
Goodwill, Ending balance	$ 1,309,292		1,309,292
Intangible assets, Beginning balance			148,157
Intangible assets, Adjustments			2,713
Intangible assets, Amortization	(5,500)	$ (4,500)	(10,578)	$ (8,759)
Intangible assets, Ending balance	134,866		134,866
Global Wealth Management [Member]
Schedule of Goodwill and Intangible Assets [Line Items]
Goodwill, Beginning balance			335,009
Goodwill, Ending balance	335,009		335,009
Intangible assets, Beginning balance			38,884
Intangible assets, Amortization			(2,763)
Intangible assets, Ending balance	36,121		36,121
Institutional Group [Member]
Schedule of Goodwill and Intangible Assets [Line Items]
Goodwill, Beginning balance			971,883
Goodwill, Adjustments			2,400
Goodwill, Ending balance	974,283		974,283
Intangible assets, Beginning balance			109,273
Intangible assets, Adjustments			(2,713)
Intangible assets, Amortization			(7,815)
Intangible assets, Ending balance	$ 98,745		$ 98,745