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Income Taxes (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
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Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024
Income Tax Disclosure [Abstract] |  |  |  |
Income tax expense (benefit) | $ 14,171 | $ (14,725) | $ 6,263 | $ (7,909)
Investment partnership pretax gains (losses) | $ 58,504 | $ (79,890) | $ 8,912 | $ (57,905)

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