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Accumulated Other Comprehensive Income (Loss) (Summary of Changes in Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($)
 3 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Accumulated Other Comprehensive Income (Loss) [Line Items]    
Beginning balance $ (47,348,000)  
Other comprehensive (loss) income (2,051,000) $ 7,390,000
Ending balance (49,399,000)  
Accumulated Other Comprehensive Income (Loss) [Member]    
Accumulated Other Comprehensive Income (Loss) [Line Items]    
Other comprehensive (loss) income (2,051,000) 7,390,000
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 (47,348,000) (57,353,000)
Other comprehensive income (loss) before reclassification (2,051,000) 7,392,000
Amount reclassified from accumulated other comprehensive (income) loss   (2,000)
Other comprehensive (loss) income (2,051,000) 7,390,000
Ending balance $ (49,399,000) $ (49,963,000)