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Revenue from contracts with customers - Disaggregation of Revenue (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | $ 1,229,048 | $ 1,072,500 |
Interest | 135,537 | 104,550 | $ 60,713
Principal transactions, net | 54,684 | 65,347 | 21,031
Other | 13,227 | 6,428 |
Total other sources of revenue | 203,448 | 176,325 |
Total revenue | 1,432,496 | 1,248,825 | 1,110,941
Corporate/Other |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 5,064 | 434 |
Interest | 7,524 | 4,249 |
Principal transactions, net | 39 | 6,375 |
Other | 238 | 1,683 |
Total other sources of revenue | 7,801 | 12,307 |
Total revenue | 12,865 | 12,741 | (1,802)
Commissions from sales and trading |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 376,910 | 317,768 |
Commissions from sales and trading | Corporate/Other |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 14 | 23 |
Mutual fund and insurance income |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 32,800 | 31,480 |
Mutual fund and insurance income | Corporate/Other |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 21 | 16 |
Advisory fees |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 483,433 | 415,679 |
Advisory fees | Corporate/Other |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 42 | 229 |
Investment banking - capital markets |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 69,177 | 48,042 |
Investment banking - capital markets | Corporate/Other |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 0 | 0 |
Investment banking - advisory |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 107,270 | 69,623 |
Investment banking - advisory | Corporate/Other |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 0 | 0 |
Bank deposit sweep income |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 138,770 | 172,807 |
Bank deposit sweep income | Corporate/Other |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 0 | 0 |
Other |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 20,688 | 17,101 |
Other | Corporate/Other |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 4,987 | 166 |
Asset Management Segment | Operating Segments |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 867,757 | 797,795 |
Interest | 88,714 | 85,105 |
Principal transactions, net | 3,263 | 3,400 |
Other | 12,318 | 3,887 |
Total other sources of revenue | 104,295 | 92,392 |
Total revenue | 972,052 | 890,187 |
Asset Management Segment | Commissions from sales and trading | Operating Segments |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 188,783 | 155,039 |
Asset Management Segment | Mutual fund and insurance income | Operating Segments |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 32,775 | 31,457 |
Asset Management Segment | Advisory fees | Operating Segments |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 483,391 | 415,450 |
Asset Management Segment | Investment banking - capital markets | Operating Segments |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 11,155 | 7,543 |
Asset Management Segment | Investment banking - advisory | Operating Segments |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 46 | 0 |
Asset Management Segment | Bank deposit sweep income | Operating Segments |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 138,770 | 172,807 |
Asset Management Segment | Other | Operating Segments |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 12,837 | 15,499 |
Capital Markets | Operating Segments |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 356,227 | 274,271 |
Interest | 39,299 | 15,196 |
Principal transactions, net | 51,382 | 55,572 |
Other | 671 | 858 |
Total other sources of revenue | 91,352 | 71,626 |
Total revenue | 447,579 | 345,897 | $ 337,821
Capital Markets | Commissions from sales and trading | Operating Segments |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 188,113 | 162,706 |
Capital Markets | Mutual fund and insurance income | Operating Segments |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 4 | 7 |
Capital Markets | Advisory fees | Operating Segments |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 0 | 0 |
Capital Markets | Investment banking - capital markets | Operating Segments |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 58,022 | 40,499 |
Capital Markets | Investment banking - advisory | Operating Segments |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 107,224 | 69,623 |
Capital Markets | Bank deposit sweep income | Operating Segments |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | 0 | 0 |
Capital Markets | Other | Operating Segments |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue from contracts with customers | $ 2,864 | $ 1,436 |

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