Quarterly report [Sections 13 or 15(d)]

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

v3.25.3
Fair Value Measurements and Derivatives - Effects of Cash Flow Hedge Accounting on Consolidated Statements of Operations (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2025
Sep. 30, 2024
Sep. 30, 2025
Sep. 30, 2024
Derivative Instruments, Gain (Loss) [Line Items]        
Amount of Gain (Loss) Recognized in Other Comprehensive Loss $ 43 $ (56,078) $ 52,944 $ (7,668)
Amount of Gain (Loss) Reclassified from Accumulated Other Comprehensive Income (Loss) into Income (Expense) (8,807) (2,630) (23,924) 3,853
Fuel 1,554,859 1,538,939 4,315,644 4,381,117
Depreciation and amortization 250,832 218,428 725,889 663,762
Interest expense, net (328,816) (175,216) (783,470) (571,865)
Other income (expense), net 13,003 (34,146) (167,927) (14,113)
Fuel        
Derivative Instruments, Gain (Loss) [Line Items]        
Fuel 175,913 164,934 508,304 537,632
Cash Flow Hedging        
Derivative Instruments, Gain (Loss) [Line Items]        
Amount of Gain (Loss) Recognized in Other Comprehensive Loss 43 (56,078) 52,944 (7,668)
Amount of Gain (Loss) Reclassified from Accumulated Other Comprehensive Income (Loss) into Income (Expense) (8,807) (2,630) (23,924) 3,853
Cash Flow Hedging | Fuel        
Derivative Instruments, Gain (Loss) [Line Items]        
Amount of Gain (Loss) Reclassified from Accumulated Other Comprehensive Income (Loss) into Income (Expense) (4,575) 1,440 (10,432) 14,855
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) (114) 49 (1,135) 1,356
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) (4,118) (4,119) (12,357) (12,358)
Cash Flow Hedging | Fuel contracts        
Derivative Instruments, Gain (Loss) [Line Items]        
Amount of Gain (Loss) Recognized in Other Comprehensive Loss 10,681 (56,615) (5,915) (8,327)
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) (4,575) 1,440 (10,432) 14,855
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 (114) 49 (1,135) 1,356
Cash Flow Hedging | Foreign currency contracts        
Derivative Instruments, Gain (Loss) [Line Items]        
Amount of Gain (Loss) Recognized in Other Comprehensive Loss (10,638) 537 58,859 659
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) $ (4,118) $ (4,119) $ (12,357) $ (12,358)