Segment Reporting (Schedule Of Information Of Total Assets On Segment Basis) (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Segment Reporting Information [Line Items]
Assets	$ 37,727,460	$ 37,196,124
Global Wealth Management [Member]
Segment Reporting Information [Line Items]
Assets	32,773,613	32,449,466
Institutional Group [Member]
Segment Reporting Information [Line Items]
Assets	4,564,058	4,285,212
Other Segments [Member]
Segment Reporting Information [Line Items]
Assets	$ 389,789	$ 461,446