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Segment Reporting (Schedule Of Operating Information, Segment) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023
Segment Reporting Information [Line Items] |  |  |  |  |
Net revenues |  | $ 1,217,932 | $ 1,050,721 | $ 2,380,970 | $ 2,157,514
Income/(loss) before income taxes |  | 226,894 | 181,385 | 445,585 | 391,268
Global Wealth Management [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Net revenues | [1] | 801,135 | 758,190 | 1,591,635 | 1,515,376
Income/(loss) before income taxes |  | 299,173 | 299,904 | 589,921 | 616,013
Institutional Group [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Net revenues | [1] | 390,721 | 277,524 | 742,097 | 610,137
Income/(loss) before income taxes |  | 48,813 | (11,593) | 85,922 | 22,133
Other Segments [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Net revenues | [1] | 26,076 | 15,007 | 47,238 | 32,001
Income/(loss) before income taxes |  | $ (121,092) | $ (106,926) | $ (230,258) | $ (246,878)
[1] | No individual client accounted for more than 10 percent of total net revenues for the three and six months ended June 30, 2024 and 2023.

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