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Pension Benefits and Other Postretirement Benefits (Additional Information) (Details) | 9 Months Ended
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Sep. 30, 2023 USD ($) plan | Sep. 30, 2022 USD ($)
Defined Benefit Plan Disclosure [Line Items] |  |
Number of qualified noncontributory defined benefit plans | plan | 1 |
Pension Benefits | Merged Plan |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Contributions | $ 0 | $ 0
Pension Benefits | Union Plan |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Additional contributions required to make for remainder of fiscal year | $ 0 |

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