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Consolidation - Schedule of Assets Related to Consolidated Sponsored Investment Products, Unobservable Input Reconciliation (Details) - Debt investments - Consolidated Investment Products - USD ($) $ in Thousands | 9 Months Ended
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Sep. 30, 2025 | Sep. 30, 2024
Assets |  |
Debt securities, beginning of period | $ 7,689 | $ 37,062
Realized and unrealized gains (losses), net | (1,872) | 918
Purchases | 2,398 | 19
Sales | (49,282) | (36,452)
Transfers to Level 2 | (50,208) | (71,236)
Transfers from Level 2 | 120,501 | 125,527
Debt securities, end of period | $ 29,226 | $ 55,838

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