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Financial Instruments Owned (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2025
Sep. 30, 2024
Sep. 30, 2025
Sep. 30, 2024
Financial Instruments Owned [Abstract]        
Net trading gains $ 680 $ 680 $ 1,195 $ 3,023