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Segment Reporting (Schedule Of Operating Information, Segment) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Segment Reporting Information [Line Items] |  |  |  |
Net revenues | [1] | $ 4,348,944 | $ 4,391,439 | $ 4,737,088
Income/(loss) before income taxes |  | 706,692 | 885,116 | 1,067,081
Global Wealth Management [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net revenues | [1] | 3,049,962 | 2,825,866 | 2,598,837
Income/(loss) before income taxes |  | 1,215,822 | 1,067,571 | 914,953
Institutional Group [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net revenues | [1] | 1,226,317 | 1,536,017 | 2,152,439
Income/(loss) before income taxes |  | 2,100 | 254,132 | 558,937
Other Segments [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net revenues | [1] | 72,665 | 29,556 | (14,188)
Income/(loss) before income taxes |  | $ (511,230) | $ (436,587) | $ (406,809)
[1] | No individual client accounted for more than 10 percent of total net revenues for the years ended December 31, 2023, 2022, and 2021.

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