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Summary of Significant Accounting Policies (Tables) | 12 Months Ended
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Dec. 31, 2023
Accounting Policies [Abstract] |
Schedule of Defined Benefit Plans Disclosures | Benefit plan obligations: The Benefit Plan Obligations caption includes the following:
($ in thousands) | December 31, 2023 |  | December 31, 2022
Postretirement medical benefits plan | $ | 1,653 |  |  | $ | 1,869 |
Supplemental executive retirement plan | 2,290 |  |  | 1,889 |
Total | $ | 3,943 |  |  | $ | 3,758 |

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