Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements and Derivatives (Details)

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Fair Value Measurements and Derivatives (Details)
T in Thousands, $ in Thousands, € in Millions
6 Months Ended
Jun. 30, 2024
USD ($)
T
Jun. 30, 2024
EUR (€)
T
Dec. 31, 2023
USD ($)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]      
Fair value of long-term debt $ 13,000,000   $ 13,500,000
Fair value of long-term debt in excess of carrying value $ 800,000   $ 900,000
Fuel contracts      
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]      
Derivative maturing date Dec. 31, 2025    
Fuel contracts | Not Designated as Hedging Instrument      
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]      
Derivative maturing date Feb. 28, 2025    
Projected fuel purchases | T 4 4  
Fuel contracts | Designated as Hedging Instrument      
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]      
Projected fuel purchases 704    
Foreign currency contracts      
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]      
Notional amount of derivatives $ 58,200 € 54.3