Segment Reporting (Schedule Of Information Of Total Assets On Segment Basis) (Details) - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024
Segment Reporting Information [Line Items]
Assets	$ 39,859,653	$ 39,895,540
Global Wealth Management [Member]
Segment Reporting Information [Line Items]
Assets	34,532,041	34,894,973
Institutional Group [Member]
Segment Reporting Information [Line Items]
Assets	5,127,202	4,788,640
Other Segments [Member]
Segment Reporting Information [Line Items]
Assets	$ 200,410	$ 211,927