Goodwill and Intangible Assets (Carrying Amount Of Goodwill And Intangible Assets) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Schedule of Goodwill and Intangible Assets [Line Items]
Goodwill, Beginning balance			$ 1,326,548
Goodwill, Adjustments			55,864
Goodwill, Ending balance	$ 1,382,412		1,382,412
Intangible assets, Beginning balance			130,589
Intangible assets, Adjustments			5,500
Intangible assets, Amortization	(4,600)	$ (5,500)	(9,070)	$ (10,578)
Intangible assets, Ending balance	127,019		127,019
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			33,499
Intangible assets, Adjustments			0
Intangible assets, Amortization			(2,464)
Intangible assets, Ending balance	31,035		31,035
Institutional Group [Member]
Schedule of Goodwill and Intangible Assets [Line Items]
Goodwill, Beginning balance			991,539
Goodwill, Adjustments			55,864
Goodwill, Ending balance	1,047,403		1,047,403
Intangible assets, Beginning balance			97,090
Intangible assets, Adjustments			5,500
Intangible assets, Amortization			(6,606)
Intangible assets, Ending balance	$ 95,984		$ 95,984