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Pension and Other Postretirement Plans - Narrative (Details)
$ in Millions
6 Months Ended
Jun. 30, 2023
USD ($)
benefit_plan
Dec. 31, 2007
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Number of non-qualified defined benefit pension plans | benefit_plan 3  
Number of healthcare plans | benefit_plan 2  
Defined Benefit Pension Plans    
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Vesting percentage in accrued benefits from plan freeze   100.00%
Minimum required contribution $ 0.0  
Planned contributions remaining 0.0  
Maximum contributions payable 0.0  
Company contributions to 2021 year plan 0.0  
Company contributions to plan 0.0  
Chairman and President Non-Qualified Defined Benefit Plans    
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Company contributions to plan $ 0.9  
Plan participant's age threshold for Company's contingent liability with respect to the Plan 70 years  
Aggregate average annual participant salary increase 10.00%  
Company expected contributions to plans in fiscal year $ 2.0