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Investments - Unrealized Gains (Losses) and Realized Gains (Losses) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Investments, Debt and Equity Securities [Abstract]      
Realized gains (losses) $ (15) $ 1 $ (68)
Unrealized gains (losses) (16,491) 2,749 247
Total gains (losses) on Investments at fair value $ (16,506) $ 2,750 $ 179