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Marketable Debt and Equity Securities - Net Gains and Losses (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Marketable Securities [Abstract]    
Net loss recognized on equity securities $ (2,898) $ (3,429)
Less: net gain recognized on sale of equity securities 0 0
Unrealized loss recognized on equity securities $ (2,898) $ (3,429)