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Business Combination (Tables) | 6 Months Ended
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Mar. 31, 2025
Business Combination, Asset Acquisition, and Joint Venture Formation [Abstract] |
Schedule of Pro Forma Information | The following table presents unaudited pro forma information as if the Merger had occurred on October 1, 2022. The pro forma adjustments give effect to any change in interest income due to the accretion of the discount (premium) associated with the fair value adjustments to acquired loans, any change in interest expense due to estimated premium amortization/discount accretion associated with the fair value adjustment to acquired interest-bearing deposits, borrowings and long-term debt and the amortization of the core deposit intangible that would have resulted had the deposits been acquired as of October 1, 2022. The pro forma information is not indicative of what would have occurred had the Merger occurred as of the beginning of the year prior to the Merger Date. The pro forma amounts below do not reflect the Company's expectations as of the date of the pro forma information of further operating cost savings and other business synergies expected to be achieved, including revenue growth as a result of the Merger. As a result, actual amounts differed from the unaudited pro forma information presented.
| Unaudited Pro Forma for the Six Months Ended |  |
| March 31, 2024 |  |
| (in thousands) |  |
Net-interest income | $ | 351,263 |  |  |
Non-interest income | 30,238 |  |  |
Net income | 120,116 |  |  |

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