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Revenues from Contracts with Customers (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2022 | Jun. 30, 2021
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | $ 481,670 | $ 475,651 | $ 1,063,113 | $ 931,337
United States |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 425,244 | 402,756 | 844,873 | 788,747
United Kingdom |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 24,319 | 42,117 | 153,731 | 82,511
Canada |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 12,447 | 13,350 | 25,489 | 26,134
Ireland |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 15,389 | 17,300 | 31,577 | 33,688
Luxembourg |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 4,160 |  | 7,214 |
Other |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 111 | 128 | 229 | 257
Investment management fees from pooled investment products |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 115,708 | 122,725 | 235,136 | 242,419
Investment management fees from investment management agreements |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 108,299 | 113,851 | 223,148 | 222,367
Investment operations fees |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 145,086 | 132,664 | 290,825 | 258,194
Investment processing fees - PaaS |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 56,378 | 55,746 | 112,833 | 106,622
Investment processing fees - SaaS |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 36,777 | 32,297 | 73,104 | 63,813
Professional services fees |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 4,731 | 4,795 | 97,849 | 10,349
Account fees and other |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 14,691 | 13,573 | 30,218 | 27,573
Private Banks |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 124,184 | 123,676 | 337,732 | 241,284
Private Banks | United States |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 96,115 | 78,848 | 177,001 | 153,943
Private Banks | United Kingdom |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 13,036 | 28,082 | 129,699 | 54,747
Private Banks | Canada |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 11,023 | 12,152 | 22,823 | 23,634
Private Banks | Ireland |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 4,010 | 4,594 | 8,209 | 8,960
Private Banks | Luxembourg |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0 |  | 0 |
Private Banks | Other |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0 | 0 | 0 | 0
Private Banks | Investment management fees from pooled investment products |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 31,993 | 33,708 | 65,111 | 66,272
Private Banks | Investment management fees from investment management agreements |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 616 | 603 | 871 | 1,076
Private Banks | Investment operations fees |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 344 | 402 | 704 | 771
Private Banks | Investment processing fees - PaaS |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 56,378 | 55,746 | 112,833 | 106,622
Private Banks | Investment processing fees - SaaS |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 29,845 | 28,442 | 59,404 | 56,252
Private Banks | Professional services fees |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 4,096 | 3,928 | 96,825 | 8,335
Private Banks | Account fees and other |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 912 | 847 | 1,984 | 1,956
Private Banks | Professional services fees, one-time early termination fees |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 88,000 |  |  |
Investment Advisors |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 113,194 | 119,396 | 232,424 | 232,690
Investment Advisors | United States |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 113,194 | 119,396 | 232,424 | 232,690
Investment Advisors | United Kingdom |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0 | 0 | 0 | 0
Investment Advisors | Canada |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0 | 0 | 0 | 0
Investment Advisors | Ireland |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0 | 0 | 0 | 0
Investment Advisors | Luxembourg |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0 |  | 0 |
Investment Advisors | Other |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0 | 0 | 0 | 0
Investment Advisors | Investment management fees from pooled investment products |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 67,490 | 75,039 | 139,483 | 147,693
Investment Advisors | Investment management fees from investment management agreements |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 40,398 | 38,345 | 82,406 | 73,059
Investment Advisors | Investment operations fees |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0 | 0 | 0 | 0
Investment Advisors | Investment processing fees - PaaS |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0 | 0 | 0 | 0
Investment Advisors | Investment processing fees - SaaS |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0 | 0 | 0 | 0
Investment Advisors | Professional services fees |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0 | 0 | 0 | 0
Investment Advisors | Account fees and other |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 5,306 | 6,012 | 10,535 | 11,938
Institutional Investors |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 83,483 | 85,699 | 170,322 | 170,198
Institutional Investors | United States |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 68,702 | 67,792 | 139,265 | 134,512
Institutional Investors | United Kingdom |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 11,283 | 14,035 | 24,032 | 27,764
Institutional Investors | Canada |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 1,424 | 1,198 | 2,666 | 2,500
Institutional Investors | Ireland |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 1,963 | 2,546 | 4,130 | 5,165
Institutional Investors | Luxembourg |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0 |  | 0 |
Institutional Investors | Other |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 111 | 128 | 229 | 257
Institutional Investors | Investment management fees from pooled investment products |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 15,700 | 13,638 | 29,566 | 27,726
Institutional Investors | Investment management fees from investment management agreements |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 63,212 | 71,342 | 131,672 | 141,285
Institutional Investors | Investment operations fees |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0 | 0 | 0 | 0
Institutional Investors | Investment processing fees - PaaS |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0 | 0 | 0 | 0
Institutional Investors | Investment processing fees - SaaS |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 3,021 | 0 | 6,131 | 0
Institutional Investors | Professional services fees |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0 | 0 | 0 | 0
Institutional Investors | Account fees and other |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 1,550 | 719 | 2,953 | 1,187
Investment Managers |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 155,926 | 142,808 | 312,827 | 279,227
Investment Managers | United States |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 142,350 | 132,648 | 286,375 | 259,664
Investment Managers | United Kingdom |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0 | 0 | 0 | 0
Investment Managers | Canada |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0 | 0 | 0 | 0
Investment Managers | Ireland |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 9,416 | 10,160 | 19,238 | 19,563
Investment Managers | Luxembourg |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 4,160 |  | 7,214 |
Investment Managers | Other |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0 | 0 | 0 | 0
Investment Managers | Investment management fees from pooled investment products |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 123 | 14 | 207 | 73
Investment Managers | Investment management fees from investment management agreements |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0 | 0 | 0 | 0
Investment Managers | Investment operations fees |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 144,742 | 132,262 | 290,121 | 257,423
Investment Managers | Investment processing fees - PaaS |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0 | 0 | 0 | 0
Investment Managers | Investment processing fees - SaaS |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 3,911 | 3,855 | 7,569 | 7,561
Investment Managers | Professional services fees |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 635 | 867 | 1,024 | 2,014
Investment Managers | Account fees and other |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 6,515 | 5,810 | 13,906 | 12,156
Investments In New Businesses |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 4,883 | 4,072 | 9,808 | 7,938
Investments In New Businesses | United States |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 4,883 | 4,072 | 9,808 | 7,938
Investments In New Businesses | United Kingdom |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0 | 0 | 0 | 0
Investments In New Businesses | Canada |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0 | 0 | 0 | 0
Investments In New Businesses | Ireland |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0 | 0 | 0 | 0
Investments In New Businesses | Luxembourg |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0 |  | 0 |
Investments In New Businesses | Other |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0 | 0 | 0 | 0
Investments In New Businesses | Investment management fees from pooled investment products |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 402 | 326 | 769 | 655
Investments In New Businesses | Investment management fees from investment management agreements |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 4,073 | 3,561 | 8,199 | 6,947
Investments In New Businesses | Investment operations fees |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0 | 0 | 0 | 0
Investments In New Businesses | Investment processing fees - PaaS |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0 | 0 | 0 | 0
Investments In New Businesses | Investment processing fees - SaaS |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0 | 0 | 0 | 0
Investments In New Businesses | Professional services fees |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0 | 0 | 0 | 0
Investments In New Businesses | Account fees and other |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | $ 408 | $ 185 | $ 840 | $ 336

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