Segment Reporting (Schedule Of Information Of Total Assets On Segment Basis) (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Segment Reporting Information [Line Items]
Assets	$ 40,383,727	$ 39,895,540
Global Wealth Management [Member]
Segment Reporting Information [Line Items]
Assets	35,160,531	34,894,973
Institutional Group [Member]
Segment Reporting Information [Line Items]
Assets	5,024,010	4,788,640
Other Segments [Member]
Segment Reporting Information [Line Items]
Assets	$ 199,186	$ 211,927