Segment Reporting (Schedule Of Operating Information, Segment) (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Segment Reporting Information [Line Items]
Net revenues	[1]	$ 4,970,320	$ 4,348,944	$ 4,391,439
Compensation and benefits		2,916,229	2,554,581	2,586,232
Non-compensation operating expenses		1,125,647	1,087,671	920,091
Operating income (loss)		928,444	706,692	885,116
Income/(loss) before income taxes		928,444	706,692	885,116
Global Wealth Management [Member]
Segment Reporting Information [Line Items]
Net revenues		3,283,960	3,049,962	2,825,866
Compensation and benefits		1,605,148	1,415,210	1,368,576
Non-compensation operating expenses		470,870	418,930	389,719
Operating income (loss)		1,207,942	1,215,822	1,067,571
Institutional Group [Member]
Segment Reporting Information [Line Items]
Net revenues		1,592,833	1,226,317	1,536,017
Compensation and benefits		959,602	841,671	929,606
Non-compensation operating expenses		409,831	382,546	352,279
Operating income (loss)		223,400	2,100	254,132
Other Segments [Member]
Segment Reporting Information [Line Items]
Net revenues		93,527	72,665	29,556
Compensation and benefits		351,479	297,700	288,050
Non-compensation operating expenses		244,946	286,195	178,093
Operating income (loss)		$ (502,898)	$ (511,230)	$ (436,587)

[1] No individual client accounted for more than 10 percent of total net revenues for the years ended December 31, 2024, 2023, and 2022.