v3.26.1
Revenues (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Disaggregation of Revenue [Line Items]        
Revenues $ 201,362 $ 210,525 $ 400,897 $ 428,457
Investment management fees        
Disaggregation of Revenue [Line Items]        
Revenues 170,850 179,476 339,983 365,567
Open-end funds        
Disaggregation of Revenue [Line Items]        
Revenues 61,465 70,379 125,191 144,416
Closed-end funds        
Disaggregation of Revenue [Line Items]        
Revenues 28,815 14,881 49,605 29,734
Retail separate accounts        
Disaggregation of Revenue [Line Items]        
Revenues 42,675 51,818 89,993 106,090
Institutional accounts        
Disaggregation of Revenue [Line Items]        
Revenues $ 37,895 $ 42,398 $ 75,194 $ 85,327