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General - Fair Value Measurement (Details) - USD ($)
$ in Thousands
Mar. 31, 2024
Dec. 31, 2023
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt, fair value $ 1,355,609 $ 1,394,412
Fair Value, Inputs, Level 2    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt, fair value 1,339,659 1,378,683
Fair Value, Inputs, Level 3    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt, fair value 15,950 15,729
Fair Value, Inputs, Level 1 | Supplemental Employee Retirement Plan    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Fair value of plan assets $ 2,890 $ 2,833