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Investments (Amortized Cost And Fair Value Of Debt Securities, By Contractual Maturity) (Details) - USD ($)
$ in Thousands
Dec. 31, 2023
Dec. 31, 2022
Schedule of Available-for-sale Securities [Line Items]    
Due after one year through five years, Amortized cost $ 61,341  
Due after five years through ten years, Amortized cost 101,953  
Due after ten years, Amortized cost 107,875  
Mortgage-backed securities, Amortized cost 250,750  
Amortized cost 521,919 $ 548,333
Due after one year through five years, Fair value 55,072  
Due after five years through ten years, Fair value 88,740  
Due after ten years, Fair value 92,095  
Mortgage-backed securities, Fair value 236,596  
Fair Value 472,503 $ 486,836
Debt Securities [Member]    
Schedule of Available-for-sale Securities [Line Items]    
Amortized cost 271,169  
Fair Value $ 235,907