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Change in Accumulated Other Comprehensive Income (Loss) (Narrative) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-sale, Parent |  |  |  |
Accumulated Other Comprehensive Income Loss [Line Items] |  |  |  |
Reclassification adjustments | $ 0 | $ 0 | $ 0 | $ 0

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