v3.26.3
Revenues from Contracts with Customers (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Disaggregation of Revenue [Line Items]        
Total revenue $ 662,043 $ 578,511 $ 1,925,843 $ 1,689,456
United States        
Disaggregation of Revenue [Line Items]        
Total revenue 562,974 491,307 1,638,367 1,441,010
United Kingdom        
Disaggregation of Revenue [Line Items]        
Total revenue 45,127 42,904 133,387 122,098
Canada        
Disaggregation of Revenue [Line Items]        
Total revenue 14,212 12,520 41,191 35,790
Ireland        
Disaggregation of Revenue [Line Items]        
Total revenue 27,310 22,208 78,702 64,552
Luxembourg        
Disaggregation of Revenue [Line Items]        
Total revenue 12,420 9,572 34,196 26,006
Investment management fees from pooled investment products        
Disaggregation of Revenue [Line Items]        
Total revenue 115,908 105,730 335,379 302,745
Investment management fees from investment management agreements        
Disaggregation of Revenue [Line Items]        
Total revenue 135,629 119,814 392,812 342,358
Investment operations fees        
Disaggregation of Revenue [Line Items]        
Total revenue 259,164 217,140 753,688 627,184
Investment processing fees - PaaS        
Disaggregation of Revenue [Line Items]        
Total revenue 90,427 83,268 268,653 244,752
Investment processing fees - SaaS        
Disaggregation of Revenue [Line Items]        
Total revenue 26,021 25,788 77,798 88,248
Professional services fees        
Disaggregation of Revenue [Line Items]        
Total revenue 12,314 6,087 32,349 23,314
Account fees and other        
Disaggregation of Revenue [Line Items]        
Total revenue 22,580 20,684 65,164 60,855
Investment Managers        
Disaggregation of Revenue [Line Items]        
Total revenue 235,817 207,050 684,213 594,165
Investment Managers | United States        
Disaggregation of Revenue [Line Items]        
Total revenue 205,778 182,696 598,734 524,823
Investment Managers | United Kingdom        
Disaggregation of Revenue [Line Items]        
Total revenue 0 66 57 220
Investment Managers | Canada        
Disaggregation of Revenue [Line Items]        
Total revenue 0 0 0 0
Investment Managers | Ireland        
Disaggregation of Revenue [Line Items]        
Total revenue 17,619 14,716 51,226 43,116
Investment Managers | Luxembourg        
Disaggregation of Revenue [Line Items]        
Total revenue 12,420 9,572 34,196 26,006
Investment Managers | Investment management fees from pooled investment products        
Disaggregation of Revenue [Line Items]        
Total revenue 241 163 697 385
Investment Managers | Investment management fees from investment management agreements        
Disaggregation of Revenue [Line Items]        
Total revenue 0 0 0 0
Investment Managers | Investment operations fees        
Disaggregation of Revenue [Line Items]        
Total revenue 222,548 195,737 647,145 560,970
Investment Managers | Investment processing fees - PaaS        
Disaggregation of Revenue [Line Items]        
Total revenue 1,518 1,387 4,399 4,003
Investment Managers | Investment processing fees - SaaS        
Disaggregation of Revenue [Line Items]        
Total revenue 4 0 4 0
Investment Managers | Professional services fees        
Disaggregation of Revenue [Line Items]        
Total revenue 2,145 1,231 6,409 4,056
Investment Managers | Account fees and other        
Disaggregation of Revenue [Line Items]        
Total revenue 9,361 8,532 25,559 24,751
Private Banks        
Disaggregation of Revenue [Line Items]        
Total revenue 160,439 143,994 469,580 423,157
Private Banks | United States        
Disaggregation of Revenue [Line Items]        
Total revenue 104,593 94,224 307,587 280,629
Private Banks | United Kingdom        
Disaggregation of Revenue [Line Items]        
Total revenue 37,062 33,355 108,024 95,764
Private Banks | Canada        
Disaggregation of Revenue [Line Items]        
Total revenue 12,657 10,943 36,561 31,269
Private Banks | Ireland        
Disaggregation of Revenue [Line Items]        
Total revenue 6,127 5,472 17,408 15,495
Private Banks | Luxembourg        
Disaggregation of Revenue [Line Items]        
Total revenue 0 0 0 0
Private Banks | Investment management fees from pooled investment products        
Disaggregation of Revenue [Line Items]        
Total revenue 38,526 34,797 110,923 98,093
Private Banks | Investment management fees from investment management agreements        
Disaggregation of Revenue [Line Items]        
Total revenue 957 1,057 2,897 3,077
Private Banks | Investment operations fees        
Disaggregation of Revenue [Line Items]        
Total revenue 635 629 1,892 1,871
Private Banks | Investment processing fees - PaaS        
Disaggregation of Revenue [Line Items]        
Total revenue 86,833 79,837 257,880 234,617
Private Banks | Investment processing fees - SaaS        
Disaggregation of Revenue [Line Items]        
Total revenue 22,732 22,076 68,120 65,742
Private Banks | Professional services fees        
Disaggregation of Revenue [Line Items]        
Total revenue 10,169 4,856 25,940 17,644
Private Banks | Account fees and other        
Disaggregation of Revenue [Line Items]        
Total revenue 587 742 1,928 2,113
Investment Advisors        
Disaggregation of Revenue [Line Items]        
Total revenue 185,378 147,465 532,970 421,234
Investment Advisors | United States        
Disaggregation of Revenue [Line Items]        
Total revenue 185,378 147,465 532,970 421,234
Investment Advisors | United Kingdom        
Disaggregation of Revenue [Line Items]        
Total revenue 0 0 0 0
Investment Advisors | Canada        
Disaggregation of Revenue [Line Items]        
Total revenue 0 0 0 0
Investment Advisors | Ireland        
Disaggregation of Revenue [Line Items]        
Total revenue 0 0 0 0
Investment Advisors | Luxembourg        
Disaggregation of Revenue [Line Items]        
Total revenue 0 0 0 0
Investment Advisors | Investment management fees from pooled investment products        
Disaggregation of Revenue [Line Items]        
Total revenue 62,169 57,724 180,372 166,903
Investment Advisors | Investment management fees from investment management agreements        
Disaggregation of Revenue [Line Items]        
Total revenue 77,170 59,871 218,223 165,862
Investment Advisors | Investment operations fees        
Disaggregation of Revenue [Line Items]        
Total revenue 35,955 20,739 104,573 62,296
Investment Advisors | Investment processing fees - PaaS        
Disaggregation of Revenue [Line Items]        
Total revenue 1,781 1,717 5,232 4,577
Investment Advisors | Investment processing fees - SaaS        
Disaggregation of Revenue [Line Items]        
Total revenue 1,041 1,282 3,197 4,075
Investment Advisors | Professional services fees        
Disaggregation of Revenue [Line Items]        
Total revenue 0 0 0 0
Investment Advisors | Account fees and other        
Disaggregation of Revenue [Line Items]        
Total revenue 7,262 6,132 21,373 17,521
Institutional Investors        
Disaggregation of Revenue [Line Items]        
Total revenue 70,638 71,826 211,856 209,675
Institutional Investors | United States        
Disaggregation of Revenue [Line Items]        
Total revenue 58,668 59,335 174,806 174,508
Institutional Investors | United Kingdom        
Disaggregation of Revenue [Line Items]        
Total revenue 6,851 8,894 22,352 24,705
Institutional Investors | Canada        
Disaggregation of Revenue [Line Items]        
Total revenue 1,555 1,577 4,630 4,521
Institutional Investors | Ireland        
Disaggregation of Revenue [Line Items]        
Total revenue 3,564 2,020 10,068 5,941
Institutional Investors | Luxembourg        
Disaggregation of Revenue [Line Items]        
Total revenue 0 0 0 0
Institutional Investors | Investment management fees from pooled investment products        
Disaggregation of Revenue [Line Items]        
Total revenue 14,448 12,640 41,958 36,161
Institutional Investors | Investment management fees from investment management agreements        
Disaggregation of Revenue [Line Items]        
Total revenue 51,776 53,633 154,967 158,383
Institutional Investors | Investment operations fees        
Disaggregation of Revenue [Line Items]        
Total revenue 26 21 66 48
Institutional Investors | Investment processing fees - PaaS        
Disaggregation of Revenue [Line Items]        
Total revenue 282 316 1,107 1,524
Institutional Investors | Investment processing fees - SaaS        
Disaggregation of Revenue [Line Items]        
Total revenue 1,680 1,809 5,183 5,545
Institutional Investors | Professional services fees        
Disaggregation of Revenue [Line Items]        
Total revenue 0 0 0 0
Institutional Investors | Account fees and other        
Disaggregation of Revenue [Line Items]        
Total revenue 2,426 3,407 8,575 8,014
Investments In New Businesses        
Disaggregation of Revenue [Line Items]        
Total revenue 9,771 8,176 27,224 41,225
Investments In New Businesses | United States        
Disaggregation of Revenue [Line Items]        
Total revenue 8,557 7,587 24,270 39,816
Investments In New Businesses | United Kingdom        
Disaggregation of Revenue [Line Items]        
Total revenue 1,214 589 2,954 1,409
Investments In New Businesses | Canada        
Disaggregation of Revenue [Line Items]        
Total revenue 0 0 0 0
Investments In New Businesses | Ireland        
Disaggregation of Revenue [Line Items]        
Total revenue 0 0 0 0
Investments In New Businesses | Luxembourg        
Disaggregation of Revenue [Line Items]        
Total revenue 0 0 0 0
Investments In New Businesses | Investment management fees from pooled investment products        
Disaggregation of Revenue [Line Items]        
Total revenue 524 406 1,429 1,203
Investments In New Businesses | Investment management fees from investment management agreements        
Disaggregation of Revenue [Line Items]        
Total revenue 5,726 5,253 16,725 15,036
Investments In New Businesses | Investment operations fees        
Disaggregation of Revenue [Line Items]        
Total revenue 0 14 12 1,999
Investments In New Businesses | Investment processing fees - PaaS        
Disaggregation of Revenue [Line Items]        
Total revenue 13 11 35 31
Investments In New Businesses | Investment processing fees - SaaS        
Disaggregation of Revenue [Line Items]        
Total revenue 564 621 1,294 12,886
Investments In New Businesses | Professional services fees        
Disaggregation of Revenue [Line Items]        
Total revenue 0 0 0 1,614
Investments In New Businesses | Account fees and other        
Disaggregation of Revenue [Line Items]        
Total revenue $ 2,944 $ 1,871 $ 7,729 $ 8,456