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Investments - Schedule of Marketable Securities (Details) - USD ($) $ in Thousands | Jun. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Investment Securities - fair value |  |
Cost | $ 78,313 | $ 82,083
Fair Value | 82,894 | 83,771
Sponsored funds |  |
Investment Securities - fair value |  |
Cost | 57,757 | 63,220
Fair Value | 59,489 | 63,296
Equity securities |  |
Investment Securities - fair value |  |
Cost | 18,193 | 17,406
Fair Value | 21,059 | 19,019
Debt securities |  |
Investment Securities - fair value |  |
Cost | 2,363 | 1,457
Fair Value | $ 2,346 | $ 1,456

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