Quarterly report [Sections 13 or 15(d)]

Fair Value Measurements and Derivatives - Effects of Cash Flow Hedge Accounting on Consolidated Statements of Operations (Details)

v3.25.2
Fair Value Measurements and Derivatives - Effects of Cash Flow Hedge Accounting on Consolidated Statements of Operations (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Derivative Instruments, Gain (Loss) [Line Items]        
Amount of Gain (Loss) Recognized in Other Comprehensive Loss $ 22,076 $ 1,157 $ 52,901 $ 48,410
Amount of Gain (Loss) Reclassified from Accumulated Other Comprehensive Income (Loss) into Income (Expense) (11,044) 3,150 (15,117) 6,483
Fuel 1,456,847 1,454,755 2,760,785 2,842,178
Depreciation and amortization 243,760 222,405 475,057 445,334
Interest expense, net (236,782) (178,472) (454,654) (396,649)
Other income (expense), net (156,425) 1,896 (180,930) 20,033
Fuel        
Derivative Instruments, Gain (Loss) [Line Items]        
Fuel 157,377 174,964 332,391 372,698
Cash Flow Hedging        
Derivative Instruments, Gain (Loss) [Line Items]        
Amount of Gain (Loss) Recognized in Other Comprehensive Loss 22,076 1,157 52,901 48,410
Amount of Gain (Loss) Reclassified from Accumulated Other Comprehensive Income (Loss) into Income (Expense) (11,044) 3,150 (15,117) 6,483
Cash Flow Hedging | Fuel        
Derivative Instruments, Gain (Loss) [Line Items]        
Amount of Gain (Loss) Reclassified from Accumulated Other Comprehensive Income (Loss) into Income (Expense) (6,147) 6,838 (5,857) 13,415
Cash Flow Hedging | Other income (expense), net        
Derivative Instruments, Gain (Loss) [Line Items]        
Amount of Gain (Loss) Reclassified from Accumulated Other Comprehensive Income (Loss) into Income (Expense) (777) 432 (1,021) 1,307
Cash Flow Hedging | Depreciation and amortization        
Derivative Instruments, Gain (Loss) [Line Items]        
Amount of Gain (Loss) Reclassified from Accumulated Other Comprehensive Income (Loss) into Income (Expense) (4,120) (4,120) (8,239) (8,239)
Cash Flow Hedging | Fuel contracts        
Derivative Instruments, Gain (Loss) [Line Items]        
Amount of Gain (Loss) Recognized in Other Comprehensive Loss (27,268) 1,035 (16,596) 48,288
Cash Flow Hedging | Fuel contracts | Fuel        
Derivative Instruments, Gain (Loss) [Line Items]        
Amount of Gain (Loss) Reclassified from Accumulated Other Comprehensive Income (Loss) into Income (Expense) (6,147) 6,838 (5,857) 13,415
Cash Flow Hedging | Fuel contracts | Other income (expense), net        
Derivative Instruments, Gain (Loss) [Line Items]        
Amount of gain (loss) reclassified from accumulated other comprehensive income (loss) into income (expense) as a result that a forecasted transaction is no longer probable of occurring (777) 432 (1,021) 1,307
Cash Flow Hedging | Foreign currency contracts        
Derivative Instruments, Gain (Loss) [Line Items]        
Amount of Gain (Loss) Recognized in Other Comprehensive Loss 49,344 122 69,497 122
Cash Flow Hedging | Foreign currency contracts | Depreciation and amortization        
Derivative Instruments, Gain (Loss) [Line Items]        
Amount of Gain (Loss) Reclassified from Accumulated Other Comprehensive Income (Loss) into Income (Expense) $ (4,120) $ (4,120) $ (8,239) $ (8,239)