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Investments (Gain (Loss) on Marketable Equity Securities) (Details 2) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2025
Sep. 30, 2024
Sep. 30, 2025
Sep. 30, 2024
Investments [Abstract]        
Gain on marketable equity securities, net $ 84,768 $ 30,496 $ 117,026 $ 154,276
Less: Net gains in earnings from marketable equity securities sold and donated (25) (5,908) (25) (6,010)
Net unrealized gains in earnings from marketable equity securities still held at the end of the period $ 84,743 $ 24,588 $ 117,001 $ 148,266