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Accumulated Other Comprehensive Income (Loss) (Summary of Changes in Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2024
Sep. 30, 2023
Sep. 30, 2024
Sep. 30, 2023
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Beginning balance     $ (47,348,000)  
Other comprehensive income (loss) $ 11,792,000 $ (10,733,000) 9,321,000 $ (7,629,000)
Ending balance (38,027,000)   (38,027,000)  
Accumulated Other Comprehensive Income (Loss) [Member]        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Other comprehensive income (loss) 11,792,000 (10,733,000) 9,321,000 (7,629,000)
Amount Reclassified From Accumulated Other Comprehensive Income (Loss) [Member] | Unrealized Gains (Losses) On Available-For-Sale Securities [Member]        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Beginning balance (49,819,000) (54,249,000) (47,348,000) (57,353,000)
Other comprehensive income (loss) before reclassification 11,792,000 (10,733,000) 9,321,000 (7,794,000)
Amount reclassified from accumulated other comprehensive income (loss)       165,000
Other comprehensive income (loss) 11,792,000 (10,733,000) 9,321,000 (7,629,000)
Ending balance $ (38,027,000) $ (64,982,000) $ (38,027,000) $ (64,982,000)