v3.26.3
Equity Method Investments - Narrative (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Apr. 01, 2026
Mar. 31, 2026
Dec. 31, 2025
Schedule of Equity Method Investments [Line Items]              
Equity method investments $ 94,273   $ 94,273       $ 189,149
Distributions received from unconsolidated affiliates     121,734 $ 104,768      
Equity in earnings of unconsolidated affiliates $ 39,819 $ 31,903 $ 110,989 94,290      
L S V Asset Management              
Schedule of Equity Method Investments [Line Items]              
Ownership interest in LSV, percentage 38.40%   38.40%   38.40% 38.50%  
Equity method investments $ 59,465   $ 59,465       121,512
Distributions received from unconsolidated affiliates     117,726 104,768      
Equity in earnings of unconsolidated affiliates 39,590 $ 31,903 109,946 $ 94,290      
Stratos Wealth Holdings              
Schedule of Equity Method Investments [Line Items]              
Investments measured at NAV 23,945   23,945       57,153
Limited Partnership Funds              
Schedule of Equity Method Investments [Line Items]              
Equity method investments $ 10,863   $ 10,863       $ 10,484