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Accumulated Other Comprehensive Income - Schedule of Amounts Reclassified from Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax | $ 6,271 | $ 5,283 | $ 48
Affected Line Item in the Statements of Income | Net realized gains (losses) on available-for-sale securities (total reclassified amount before tax) |  |  |
Unrealized gains/(losses) on available- for-sale securities |  | 78 | (62)
Affected Line Item in the Statements of Income | Amortization of realized gain on termination of cash flow hedge (total reclassification amount before tax) |  |  |
Change in fair value of cash flow hedge available-for-sale securities reclassified out of AOCI | 8,123 | 6,764 |
Affected Line Item in the Statements of Income | Tax (expense) benefit |  |  |
Income taxes on unrealized gains on available-for-sale securities reclassified out of AOCI | $ (1,852) | $ (1,559) | $ 14

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