Segment Reporting (Schedule Of Information Of Total Assets On Segment Basis) (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Segment Reporting Information [Line Items]
Assets	$ 37,809,278	$ 37,727,460
Global Wealth Management [Member]
Segment Reporting Information [Line Items]
Assets	32,614,886	32,773,613
Institutional Group [Member]
Segment Reporting Information [Line Items]
Assets	4,907,447	4,564,058
Other Segments [Member]
Segment Reporting Information [Line Items]
Assets	$ 286,945	$ 389,789