Summary of Significant Accounting Policies - Summary of Balances Of Management Fees Receivable (Details) - USD ($) $ in Thousands |
Sep. 30, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Disaggregation of Revenue [Line Items] | ||
| Total Fees receivable | $ 6,816 | $ 8,344 |
| Mutual Fund Management Fees | ||
| Disaggregation of Revenue [Line Items] | ||
| Total Fees receivable | 2,845 | 3,233 |
| ETF Management Fees | ||
| Disaggregation of Revenue [Line Items] | ||
| Total Fees receivable | 976 | 830 |
| Separately Managed Account Management Fees | ||
| Disaggregation of Revenue [Line Items] | ||
| Total Fees receivable | 2,357 | 2,220 |
| Proprietary Fund Management Fees | ||
| Disaggregation of Revenue [Line Items] | ||
| Total Fees receivable | 224 | 1,866 |
| Other | ||
| Disaggregation of Revenue [Line Items] | ||
| Total Fees receivable | $ 414 | $ 195 |