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Commitments and Contingencies (Tables) | 12 Months Ended
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Dec. 31, 2025
Commitments and Contingencies Disclosure [Abstract] |
Summary of Changes in ACL on Off-balance Sheet Credit Exposures | Changes in the ACL on off-balance sheet credit exposures were as follows for the periods presented ($ in thousands):
|  | Years Ended December 31, |
|  | 2025 |  |  | 2024 |  |  | 2023 |
Balance at beginning of period |  | $ | 29,392 |  |  | $ | 34,057 |  |  | $ | 36,838 |
PCL, off-balance sheet credit exposures |  |  | (1,441 | ) |  |  | (4,665 | ) |  |  | (2,781 | )
Balance at end of period |  | $ | 27,951 |  |  | $ | 29,392 |  |  | $ | 34,057 |

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