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Investments - Available-for-sale securities, Unrealized Loss (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2023 | Dec. 31, 2021 | Dec. 31, 2022
Debt Securities, Available-for-Sale, Unrealized Loss Position [Line Items] |  |  |
Fair Value of Investments with Unrealized Losses | $ 10,800 |  | $ 0
Proceeds from sales of equity securities | 144,250 | $ 28,536 |
Equity securities | $ 0 |  | $ 134,836

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