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Shareholders' Equity (Tables) | 3 Months Ended
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Mar. 31, 2024
Equity [Abstract] |
Schedule of Accumulated Other Comprehensive Income (Loss) | The following table presents the changes in accumulated other comprehensive income (loss) after-tax by component:
Three months ended
($ in thousands) | Net Unrealized Loss on Available-for-Sale Securities |  | Unamortized Gain on Held-to-Maturity Securities |  | Net Unrealized Gain (Loss) on Cash Flow Hedges |  | Total
Balance, December 31, 2023 | $ | (112,844) |  |  | $ | 10,580 |  |  | $ | 1,249 |  |  | $ | (101,015) |
Net change | (11,073) |  |  | (626) |  |  | (2,677) |  |  | (14,376) |
Balance, March 31, 2024 | $ | (123,917) |  |  | $ | 9,954 |  |  | $ | (1,428) |  |  | $ | (115,391) |
Balance, December 31, 2022 | $ | (144,549) |  |  | $ | 13,185 |  |  | $ | 1,032 |  |  | $ | (130,332) |
Net change | 23,693 |  |  | (638) |  |  | 1,302 |  |  | 24,357 |
Balance, March 31, 2023 | $ | (120,856) |  |  | $ | 12,547 |  |  | $ | 2,334 |  |  | $ | (105,975) |
Schedule of Pre-tax and After-tax Changes in the Components of Other Comprehensive Income | The following table presents the pre-tax and after-tax changes in the components of other comprehensive income (loss):
| Three months ended March 31,
| 2024 |  | 2023
($ in thousands) | Pre-tax |  | Tax effect |  | After-tax |  | Pre-tax |  | Tax effect |  | After-tax
Change in unrealized gain (loss) on available-for-sale securities | $ | (14,725) |  |  | $ | (3,652) |  |  | $ | (11,073) |  |  | $ | 32,056 |  |  | $ | 8,078 |  |  | $ | 23,978 |
Reclassification of gain on sale of available-for-sale securities(a) | — |  |  | — |  |  | — |  |  | (381) |  |  | (96) |  |  | (285) |
Reclassification of gain on held-to-maturity securities(a) | (832) |  |  | (206) |  |  | (626) |  |  | (852) |  |  | (214) |  |  | (638) |
Change in unrealized gain (loss) on cash flow hedges | (3,912) |  |  | (970) |  |  | (2,942) |  |  | 1,705 |  |  | 430 |  |  | 1,275 |
Reclassification of loss on cash flow hedges(b) | 353 |  |  | 88 |  |  | 265 |  |  | 36 |  |  | 9 |  |  | 27 |
Total other comprehensive income (loss) | $ | (19,116) |  |  | $ | (4,740) |  |  | $ | (14,376) |  |  | $ | 32,564 |  |  | $ | 8,207 |  |  | $ | 24,357 |
(a)The pre-tax amount is reported in noninterest income/expense in the Consolidated Statements of Income.
(b)The pre-tax amount is reported in interest income/expense in the Consolidated Statements of Income.

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