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Revenues from Contracts with Customers (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2025 | Mar. 31, 2024
Disaggregation of Revenue [Line Items] |  |
Total revenue | $ 551,344 | $ 511,579
United States |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 472,682 | 438,121
United Kingdom |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 38,336 | 39,066
Canada |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 11,398 | 11,270
Ireland |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 20,975 | 16,334
Luxembourg |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 7,953 | 6,788
Investment management fees from pooled investment products |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 97,935 | 103,510
Investment management fees from investment management agreements |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 110,156 | 107,609
Investment operations fees |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 202,960 | 175,850
Investment processing fees - PaaS |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 79,139 | 70,818
Investment processing fees - SaaS |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 30,857 | 30,663
Professional services fees |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 9,608 | 5,715
Account fees and other |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 20,689 | 17,414
Investment Managers |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 192,048 | 172,653
Investment Managers | United States |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 170,036 | 155,959
Investment Managers | United Kingdom |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 0 | 0
Investment Managers | Canada |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 0 | 0
Investment Managers | Ireland |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 14,059 | 9,906
Investment Managers | Luxembourg |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 7,953 | 6,788
Investment Managers | Investment management fees from pooled investment products |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 109 | 84
Investment Managers | Investment management fees from investment management agreements |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 0 | 0
Investment Managers | Investment operations fees |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 180,357 | 164,189
Investment Managers | Investment processing fees - PaaS |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 1,287 | 1,258
Investment Managers | Investment processing fees - SaaS |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 0 | 19
Investment Managers | Professional services fees |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 1,709 | 1,017
Investment Managers | Account fees and other |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 8,586 | 6,086
Private Banks |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 137,714 | 130,137
Private Banks | United States |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 93,131 | 85,775
Private Banks | United Kingdom |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 29,767 | 29,848
Private Banks | Canada |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 9,983 | 9,799
Private Banks | Ireland |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 4,833 | 4,715
Private Banks | Luxembourg |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 0 | 0
Private Banks | Investment management fees from pooled investment products |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 30,743 | 32,399
Private Banks | Investment management fees from investment management agreements |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 1,058 | 931
Private Banks | Investment operations fees |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 622 | 539
Private Banks | Investment processing fees - PaaS |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 75,856 | 67,846
Private Banks | Investment processing fees - SaaS |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 21,815 | 23,459
Private Banks | Professional services fees |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 6,914 | 4,115
Private Banks | Account fees and other |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 706 | 848
Investment Advisors |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 136,576 | 122,718
Investment Advisors | United States |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 136,576 | 122,718
Investment Advisors | United Kingdom |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 0 | 0
Investment Advisors | Canada |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 0 | 0
Investment Advisors | Ireland |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 0 | 0
Investment Advisors | Luxembourg |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 0 | 0
Investment Advisors | Investment management fees from pooled investment products |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 55,104 | 58,597
Investment Advisors | Investment management fees from investment management agreements |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 52,077 | 48,161
Investment Advisors | Investment operations fees |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 20,837 | 9,644
Investment Advisors | Investment processing fees - PaaS |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 1,364 | 1,281
Investment Advisors | Investment processing fees - SaaS |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 1,382 | 0
Investment Advisors | Professional services fees |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 0 | 0
Investment Advisors | Account fees and other |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 5,812 | 5,035
Institutional Investors |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 68,506 | 71,778
Institutional Investors | United States |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 57,009 | 59,376
Institutional Investors | United Kingdom |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 7,999 | 9,218
Institutional Investors | Canada |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 1,415 | 1,471
Institutional Investors | Ireland |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 2,083 | 1,713
Institutional Investors | Luxembourg |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 0 | 0
Institutional Investors | Investment management fees from pooled investment products |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 11,576 | 12,074
Institutional Investors | Investment management fees from investment management agreements |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 52,237 | 54,209
Institutional Investors | Investment operations fees |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 11 | 0
Institutional Investors | Investment processing fees - PaaS |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 623 | 423
Institutional Investors | Investment processing fees - SaaS |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 1,836 | 2,088
Institutional Investors | Professional services fees |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 0 | 0
Institutional Investors | Account fees and other |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 2,223 | 2,984
Investments In New Businesses |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 16,500 | 14,293
Investments In New Businesses | United States |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 15,930 | 14,293
Investments In New Businesses | United Kingdom |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 570 | 0
Investments In New Businesses | Canada |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 0 | 0
Investments In New Businesses | Ireland |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 0 | 0
Investments In New Businesses | Luxembourg |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 0 | 0
Investments In New Businesses | Investment management fees from pooled investment products |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 403 | 356
Investments In New Businesses | Investment management fees from investment management agreements |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 4,784 | 4,308
Investments In New Businesses | Investment operations fees |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 1,133 | 1,478
Investments In New Businesses | Investment processing fees - PaaS |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 9 | 10
Investments In New Businesses | Investment processing fees - SaaS |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 5,824 | 5,097
Investments In New Businesses | Professional services fees |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 985 | 583
Investments In New Businesses | Account fees and other |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | $ 3,362 | $ 2,461

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