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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, 2024 | Sep. 30, 2023
Assets |  |
Debt securities, beginning of period | $ 37,062 | $ 43,581
Realized and unrealized gains (losses), net | 918 | (42)
Purchases | 19 | 3,430
Sales | (36,452) | (7,890)
Transfers to Level 2 | (71,236) | (79,288)
Transfers from Level 2 | 125,527 | 103,491
Debt securities, end of period | $ 55,838 | $ 63,282

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