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Investments - Marketable Securities (Details) - USD ($) $ in Thousands | Jun. 30, 2022 | Dec. 31, 2021
--- | --- | ---
Investment Securities - fair value |  |
Cost | $ 83,510 | $ 73,749
Fair Value | 77,184 | 80,335
Sponsored funds |  |
Investment Securities - fair value |  |
Cost | 71,808 | 63,090
Fair Value | 65,121 | 66,326
Equity securities |  |
Investment Securities - fair value |  |
Cost | 11,702 | 10,659
Fair Value | $ 12,063 | $ 14,009

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