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Pension Benefits and Other Postretirement Benefits (Additional Information) (Details)
9 Months Ended
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