Goodwill and Intangible Assets (Carrying Amount Of Goodwill And Intangible Assets) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Schedule of Goodwill and Intangible Assets [Line Items]
Goodwill, Beginning balance			$ 1,306,892
Goodwill, Adjustments			13,071
Goodwill, Ending balance	$ 1,319,963		1,319,963
Intangible assets, Beginning balance			148,157
Intangible assets, Adjustments			1,378
Intangible assets, Amortization	(4,400)	$ (4,500)	(14,966)	$ (13,216)
Intangible assets, Ending balance	134,569		134,569
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			(4,088)
Intangible assets, Ending balance	34,796		34,796
Institutional Group [Member]
Schedule of Goodwill and Intangible Assets [Line Items]
Goodwill, Beginning balance			971,883
Goodwill, Adjustments			13,071
Goodwill, Ending balance	984,954		984,954
Intangible assets, Beginning balance			109,273
Intangible assets, Adjustments			1,378
Intangible assets, Amortization			(10,878)
Intangible assets, Ending balance	$ 99,773		$ 99,773