v3.26.3
Revenue (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 $ 157,427 $ 141,720 $ 455,796 $ 412,313
Open-end funds        
Disaggregation of Revenue [Line Items]        
Total revenue 92,531 82,332 265,337 237,880
Institutional        
Disaggregation of Revenue [Line Items]        
Total revenue 36,571 33,210 106,865 98,231
Closed-end funds        
Disaggregation of Revenue [Line Items]        
Total revenue 28,325 26,178 83,594 76,202
North America        
Disaggregation of Revenue [Line Items]        
Total revenue 138,124 124,180 399,759 360,104
Japan        
Disaggregation of Revenue [Line Items]        
Total revenue 7,592 7,594 22,581 22,996
Asia Pacific excluding Japan        
Disaggregation of Revenue [Line Items]        
Total revenue 4,845 4,438 14,382 12,914
EMEA        
Disaggregation of Revenue [Line Items]        
Total revenue $ 6,866 $ 5,508 $ 19,074 $ 16,299