Borrowings - Interest Expense on Broker-Dealer Facilities (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2025 |
Jun. 30, 2024 |
Jun. 30, 2025 |
Jun. 30, 2024 |
|
| Line of Credit Facility [Line Items] | ||||
| Interest expense | $ 32,551 | $ 23,430 | $ 62,442 | $ 46,662 |
| Broker-dealer credit facilities | ||||
| Line of Credit Facility [Line Items] | ||||
| Interest expense | 2,235 | 1,990 | 4,374 | 3,581 |
| Uncommitted facility | ||||
| Line of Credit Facility [Line Items] | ||||
| Interest expense | 1,175 | 1,009 | 2,319 | 1,610 |
| Committed facility | ||||
| Line of Credit Facility [Line Items] | ||||
| Interest expense | 898 | 916 | 1,707 | 1,793 |
| Overdraft facility | ||||
| Line of Credit Facility [Line Items] | ||||
| Interest expense | $ 162 | $ 65 | $ 348 | $ 178 |