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Accumulated Other Comprehensive Income (Loss) (Tables) | 3 Months Ended
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Mar. 31, 2024
Equity [Abstract] |
Schedule of Accumulated Other Comprehensive Income (Loss) | The components of accumulated other comprehensive income (loss) ("AOCI") for the Company are as follows:
($ in thousands) |  | March 31, 2024 |  | December 31, 2023
Unrealized loss on securities available for sale |  | $ | (418,888) |  |  | (400,720) |
Deferred tax asset |  | 96,973 |  |  | 92,767 |
Net unrealized loss on securities available for sale |  | (321,915) |  |  | (307,953) |
Postretirement plans liability |  | (75) |  |  | (100) |
Deferred tax asset |  | 17 |  |  | 23 |
Net postretirement plans liability |  | (58) |  |  | (77) |
Total accumulated other comprehensive loss |  | $ | (321,973) |  |  | (308,030) |
The following tables disclose the changes in AOCI for the three months ended March 31, 2024 and 2023 (all amounts are net of tax):
|  | For the Three Months Ended March 31, 2024
($ in thousands) |  | Unrealized Loss on Securities Available for Sale |  | Postretirement Plans Asset (Liability) |  | Total
Beginning balance |  | $ | (307,953) |  |  | (77) |  |  | (308,030) |
Other comprehensive loss before reclassifications |  | (14,711) |  |  | — |  |  | (14,711) |
Amounts reclassified from accumulated other comprehensive income |  | 749 |  |  | 19 |  |  | 768 |
Net current period other comprehensive (loss) income |  | (13,962) |  |  | 19 |  |  | (13,943) |
Ending balance |  | $ | (321,915) |  |  | (58) |  |  | (321,973) |
|  | For the Three Months Ended March 31, 2023
($ in thousands) |  | Unrealized Loss on Securities Available for Sale |  | Postretirement Plans Asset (Liability) |  | Total
Beginning balance |  | $ | (342,017) |  |  | 42 |  |  | (341,975) |
Other comprehensive income before reclassifications |  | 27,908 |  |  | — |  |  | 27,908 |
Amounts reclassified from accumulated other comprehensive income |  | — |  |  | 33 |  |  | 33 |
Net current period other comprehensive income |  | 27,908 |  |  | 33 |  |  | 27,941 |
Ending balance |  | $ | (314,109) |  |  | 75 |  |  | (314,034) |

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