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Investments in Securities - Additional Information (Details) - USD ($)
Jun. 30, 2025
Dec. 31, 2024
Dec. 31, 2023
Investments, Debt and Equity Securities [Abstract]      
Investments in securities $ 0 $ 65,541,000 $ 71,230,000
Unrealized gain (loss) on available-for-sale debt securities $ 0 $ (56,000) $ (69,000)