Segment Reporting (Schedule Of Information Of Total Assets On Segment Basis) (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Segment Reporting Information [Line Items]
Assets	$ 37,196,124	$ 34,049,715
Global Wealth Management [Member]
Segment Reporting Information [Line Items]
Assets	32,449,466	28,219,800
Institutional Group [Member]
Segment Reporting Information [Line Items]
Assets	4,285,212	5,151,841
Other Segments [Member]
Segment Reporting Information [Line Items]
Assets	$ 461,446	$ 678,074