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Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020
Pre-Tax Amount |  |  |  |
Other Comprehensive Income/(Loss), Pre-Tax Amount | $ (5,891) | $ 281 | $ (12,714) | $ 26,833
Tax (Expense) Benefit |  |  |  |
Other Comprehensive Income/(Loss), Tax (Expense) Benefit | 1,257 | (60) | 2,714 | (5,710)
Net of Tax Amount |  |  |  |
Other Comprehensive (Loss)/Income, Net of Tax Amount | (4,634) | 221 | (10,000) | 21,123
Pension settlement charge | 400 |  | 1,300 |
Accumulated Net Investment Gain (Loss) on Debt Securities Available-for-sale |  |  |  |
Pre-Tax Amount |  |  |  |
Change in net unrealized gains/(losses) on debt securities available-for-sale | (5,676) | (882) | (15,065) | 24,883
Reclassification adjustment for net (gains)/losses on debt securities available-for-sale included in net income |  |  | 0 | (142)
Tax (Expense) Benefit |  |  |  |
Change in net unrealized gains/(losses) on debt securities available-for-sale | 1,211 | 188 | 3,215 | (5,294)
Reclassification adjustment for net (gains)/losses on debt securities available-for-sale included in net income |  |  | 0 | 30
Net of Tax Amount |  |  |  |
Change in net unrealized gains/(losses) on debt securities available-for-sale | (4,465) | (694) | (11,850) | 19,589
Reclassification adjustment for net (gains)/losses on debt securities available-for-sale included in net income |  |  | 0 | (112)
Adjustment to Funded Status of Employee Benefit Plans |  |  |  |
Pre-Tax Amount |  |  |  |
Other Comprehensive Income/(Loss), Pre-Tax Amount | (215) | 1,163 | 2,351 | 2,092
Tax (Expense) Benefit |  |  |  |
Other Comprehensive Income/(Loss), Tax (Expense) Benefit | 46 | (248) | (501) | (446)
Net of Tax Amount |  |  |  |
Other Comprehensive (Loss)/Income, Net of Tax Amount | $ (169) | $ 915 | $ 1,850 | $ 1,646

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