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Investments - Equity Securities (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2023 | Dec. 31, 2022
Equity Securities, FV-NI, Gain (Loss) [Abstract] |  |
Cost | $ 15,946 | $ 15,924
Gross Gains | 2 | 0
Gross Losses | (1,425) | (1,784)
Equity securities | $ 14,523 | $ 14,140

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