Annual report [Section 13 and 15(d), not S-K Item 405]

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

v3.25.0.1
Fair Value Measurements and Derivatives - Effects of Cash Flow Hedge Accounting on Consolidated Statements of Operations (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Derivative Instruments, Gain (Loss) [Line Items]      
Amount of Gain (Loss) Recognized in Other Comprehensive Income $ (10,642) $ (1,773) $ (104,017)
Amount of Gain (Loss) Reclassified from Accumulated Other Comprehensive Income (Loss) into Income (4,923) 26,173 96,865
Fuel Costs 698,050 716,833  
Fuel 5,688,696 5,468,587 4,267,086
Depreciation and amortization 890,242 808,568 749,326
Interest expense, net (747,223) (727,531) (801,512)
Other income (expense), net 54,224 (40,204) 76,566
Fuel      
Derivative Instruments, Gain (Loss) [Line Items]      
Fuel 698,050 716,833 686,825
Cash Flow Hedging      
Derivative Instruments, Gain (Loss) [Line Items]      
Amount of Gain (Loss) Reclassified from Accumulated Other Comprehensive Income (Loss) into Income (4,923) 26,173 96,865
Fuel Costs     686,825
Depreciation and amortization     749,326
Interest expense, net     801,512
Other income (expense), net     76,566
Amount of Gain (Loss) Recognized in Other Comprehensive Loss (10,642) (1,773) (104,017)
Cash Flow Hedging | Fuel      
Derivative Instruments, Gain (Loss) [Line Items]      
Amount of Gain (Loss) Reclassified from Accumulated Other Comprehensive Income (Loss) into Income 12,321 39,138 104,250
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 (16,478) (12,819) (7,052)
Cash Flow Hedging | Interest Expense [Member]      
Derivative Instruments, Gain (Loss) [Line Items]      
Amount of Gain (Loss) Reclassified from Accumulated Other Comprehensive Income (Loss) into Income     (40)
Cash Flow Hedging | Fuel contracts      
Derivative Instruments, Gain (Loss) [Line Items]      
Amount of Gain (Loss) Reclassified from Accumulated Other Comprehensive Income (Loss) into Income (766) (146) (293)
Amount of Gain (Loss) Recognized in Other Comprehensive Loss 9,482 (15,144) 106,994
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 12,321 39,138 104,250
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 as a result that a forecasted transaction is no longer probable of occurring (766) (146) (293)
Cash Flow Hedging | Foreign currency contracts      
Derivative Instruments, Gain (Loss) [Line Items]      
Amount of Gain (Loss) Recognized in Other Comprehensive Loss (20,124) 13,371 (211,011)
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 $ (16,478) $ (12,819) (7,052)
Cash Flow Hedging | Interest Rate Contract [Member] | Interest Expense [Member]      
Derivative Instruments, Gain (Loss) [Line Items]      
Amount of Gain (Loss) Reclassified from Accumulated Other Comprehensive Income (Loss) into Income     $ (40)