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Revenue from contracts with customers - Schedule of Disaggregation of Revenue (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue from contracts with customers | $ 283,906 | $ 257,496 | $ 586,541 | $ 536,207
Interest | 34,805 | 27,320 | 61,571 | 52,261
Principal transactions, net | 10,074 | 16,253 | 28,308 | 29,743
Other | 1,804 | 5,120 | 7,307 | 9,657
Total other sources of revenue | 46,683 | 48,693 | 97,186 | 91,661
Total revenue | 330,589 | 306,189 | 683,727 | 627,868
Corporate/Other |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue from contracts with customers | 1,957 | 41 | 2,958 | 155
Interest | 1,769 | 808 | 4,036 | 2,141
Principal transactions, net | 132 | 1,771 | (103) | 3,808
Other | 64 | 544 | 125 | 1,077
Total other sources of revenue | 1,965 | 3,123 | 4,058 | 7,026
Total revenue | 3,922 | 3,164 | 7,016 | 7,181
Private Client | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue from contracts with customers | 184,641 | 173,220 | 369,454 | 351,128
Interest | 21,626 | 22,403 | 41,822 | 42,982
Principal transactions, net | 376 | 1,072 | 2,112 | 2,121
Other | 2,058 | 4,550 | 8,346 | 8,435
Total other sources of revenue | 24,060 | 28,025 | 52,280 | 53,538
Total revenue | 208,701 | 201,245 | 421,734 | 404,666
Asset Management | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue from contracts with customers | 26,240 | 22,196 | 52,200 | 46,150
Interest | 0 | 0 | 0 | 0
Principal transactions, net | 0 | 0 | 0 | 0
Other | (415) | 2 | (1,447) | 7
Total other sources of revenue | (415) | 2 | (1,447) | 7
Total revenue | 25,825 | 22,198 | 50,753 | 46,157
Capital Markets | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue from contracts with customers | 71,068 | 62,039 | 161,929 | 138,774
Interest | 11,410 | 4,109 | 15,713 | 7,138
Principal transactions, net | 9,566 | 13,410 | 26,299 | 23,814
Other | 97 | 24 | 283 | 138
Total other sources of revenue | 21,073 | 17,543 | 42,295 | 31,090
Total revenue | 92,141 | 79,582 | 204,224 | 169,864
Commissions from sales and trading |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue from contracts with customers | 88,943 | 80,828 | 176,923 | 159,805
Commissions from sales and trading | Corporate/Other |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue from contracts with customers | 3 | 8 | 8 | 14
Commissions from sales and trading | Private Client | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue from contracts with customers | 44,766 | 37,666 | 89,696 | 76,590
Commissions from sales and trading | Asset Management | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue from contracts with customers | 0 | 0 | 0 | 0
Commissions from sales and trading | Capital Markets | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue from contracts with customers | 44,174 | 43,154 | 87,219 | 83,201
Mutual fund and insurance income |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue from contracts with customers | 8,112 | 7,716 | 15,982 | 15,436
Mutual fund and insurance income | Corporate/Other |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue from contracts with customers | 5 | 4 | 10 | 8
Mutual fund and insurance income | Private Client | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue from contracts with customers | 8,106 | 7,711 | 15,970 | 15,423
Mutual fund and insurance income | Asset Management | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue from contracts with customers | 0 | 0 | 0 | 0
Mutual fund and insurance income | Capital Markets | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue from contracts with customers | 1 | 1 | 2 | 5
Advisory fees |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue from contracts with customers | 117,197 | 101,015 | 232,044 | 201,559
Advisory fees | Corporate/Other |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue from contracts with customers | 9 | 8 | 20 | 15
Advisory fees | Private Client | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue from contracts with customers | 90,947 | 78,811 | 179,823 | 155,394
Advisory fees | Asset Management | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue from contracts with customers | 26,241 | 22,196 | 52,201 | 46,150
Advisory fees | Capital Markets | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue from contracts with customers | 0 | 0 | 0 | 0
Investment banking - capital markets |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue from contracts with customers | 16,828 | 9,033 | 35,476 | 19,061
Investment banking - capital markets | Corporate/Other |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue from contracts with customers | (1) | 0 | (1) | 0
Investment banking - capital markets | Private Client | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue from contracts with customers | 2,807 | 1,688 | 5,828 | 3,475
Investment banking - capital markets | Asset Management | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue from contracts with customers | 0 | 0 | 0 | 0
Investment banking - capital markets | Capital Markets | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue from contracts with customers | 14,022 | 7,345 | 29,649 | 15,586
Investment banking - advisory |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue from contracts with customers | 12,291 | 10,945 | 44,180 | 38,882
Investment banking - advisory | Corporate/Other |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue from contracts with customers | 0 | 0 | 0 | 0
Investment banking - advisory | Private Client | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue from contracts with customers | 0 | 0 | 21 | 0
Investment banking - advisory | Asset Management | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue from contracts with customers | 0 | 0 | 0 | 0
Investment banking - advisory | Capital Markets | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue from contracts with customers | 12,291 | 10,945 | 44,159 | 38,882
Bank deposit sweep income |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue from contracts with customers | 34,846 | 44,060 | 71,531 | 92,969
Bank deposit sweep income | Corporate/Other |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue from contracts with customers | (1) | 0 | (1) | 0
Bank deposit sweep income | Private Client | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue from contracts with customers | 34,847 | 44,060 | 71,532 | 92,969
Bank deposit sweep income | Asset Management | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue from contracts with customers | 0 | 0 | 0 | 0
Bank deposit sweep income | Capital Markets | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue from contracts with customers | 0 | 0 | 0 | 0
Other |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue from contracts with customers | 5,689 | 3,899 | 10,405 | 8,495
Other | Corporate/Other |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue from contracts with customers | 1,942 | 21 | 2,922 | 118
Other | Private Client | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue from contracts with customers | 3,168 | 3,284 | 6,584 | 7,277
Other | Asset Management | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue from contracts with customers | (1) | 0 | (1) | 0
Other | Capital Markets | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue from contracts with customers | $ 580 | $ 594 | $ 900 | $ 1,100

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