Investments (Net Gain (Loss) on Marketable Equity Securities) (Details 2) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
|
| Investments [Abstract] | ||||
| Gain (loss) on marketable equity securities, net | $ 101,879 | $ (11,543) | $ 32,956 | $ 32,258 |
| Less: Net gains in earnings from marketable equity securities sold and donated | (44) | 0 | (2,411) | 0 |
| Net unrealized gains (losses) in earnings from marketable equity securities still held at the end of the period | $ 101,835 | $ (11,543) | $ 30,545 | $ 32,258 |