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Securities Fair Value Option Securities (Details) - USD ($)
$ in Thousands
Sep. 30, 2025
Dec. 31, 2024
Fair Value Option Securities [Line Items]    
Fair value option securities, Fair Value $ 104,688 $ 17,876
Residential agency mortgage-backed securities [Member]    
Fair Value Option Securities [Line Items]    
Fair value option securities, Fair Value 104,688 17,876
Fair value option securities, Net Unrealized Gain (Loss) $ 405 $ (1,662)