v3.26.3
INVESTMENT SECURITIES - General Information (Details) - USD ($)
$ in Thousands
Sep. 30, 2026
Dec. 31, 2025
Equity Securities, FV-NI    
Investment in Alpine Income Property Trust, Inc. $ 42,881 $ 41,324
Alpine Income Property Trust, Inc. Common Stock and Alpine Income Property OP, LP Limited Partnership Units    
Equity Securities, FV-NI    
Investment in Alpine Income Property Trust, Inc. $ 42,900  
Investment in Alpine Income Property Trust, Inc. (in shares) 2,470,000  
Investment in Alpine Income Property Trust, Inc., ownership percentage (as a percent) 12.90%  
Alpine Income Property OP, LP Limited Partnership Units    
Equity Securities, FV-NI    
Investment in Alpine Income Property Trust, Inc. $ 21,234 20,463
Investment in Alpine Income Property Trust, Inc. (in shares) 1,223,854  
Investment in Alpine Income Property Trust, Inc., ownership percentage (as a percent) 6.40%  
Common Stock    
Equity Securities, FV-NI    
Investment in Alpine Income Property Trust, Inc. $ 21,647 $ 20,861
Investment in Alpine Income Property Trust, Inc. (in shares) 1,247,702  
Investment in Alpine Income Property Trust, Inc., ownership percentage (as a percent) 6.50%