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Investments (Amortized Cost And Fair Value Of Debt Securities, By Contractual Maturity) (Details) - USD ($) $ in Thousands | Jun. 30, 2024 | Dec. 31, 2023
--- | --- | ---
Schedule of Available-for-sale Securities [Line Items] |  |
Amortized cost | $ 503,807 | $ 521,919
Fair Value | 454,465 | $ 472,503
Debt Securities [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Due after one year through five years, Amortized cost | 85,160 |
Due after five years through ten years, Amortized cost | 80,052 |
Due after ten years, Amortized cost | 102,718 |
Amortized cost | 267,930 |
Due after one year through five years, Fair value | 75,619 |
Due after five years through ten years, Fair value | 69,302 |
Due after ten years, Fair value | 86,488 |
Fair Value | 231,409 |
Mortgage And Asset-Backed Securities [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Mortgage-backed securities, Amortized cost | 235,877 |
Mortgage-backed securities, Fair value | $ 223,056 |

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