Quarterly report pursuant to Section 13 or 15(d)

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

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Fair Value Measurements and Derivatives - Effects of Cash Flow Hedge Accounting on Consolidated Statements of Operations (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Derivative Instruments Gain Loss [Line Items]    
Fuel $ 135,509 $ 42,603
Depreciation and amortization 179,076 170,316
Interest expense, net 327,685 824,441
Other income (expense), net 38,120 27,243
Other income (expense), net    
Derivative Instruments Gain Loss [Line Items]    
Amount of Gain (Loss) Reclassified from Accumulated Other Comprehensive Income (Loss) into Income   (10,190)
Cash Flow Hedging    
Derivative Instruments Gain Loss [Line Items]    
Amount of Gain (Loss) Reclassified from Accumulated Other Comprehensive Income (Loss) into Income 7,502 (21,838)
Cash Flow Hedging | Fuel    
Derivative Instruments Gain Loss [Line Items]    
Amount of Gain (Loss) Reclassified from Accumulated Other Comprehensive Income (Loss) into Income 8,809 (8,171)
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 (1,267) (1,267)
Cash Flow Hedging | Interest expense, net    
Derivative Instruments Gain Loss [Line Items]    
Amount of Gain (Loss) Reclassified from Accumulated Other Comprehensive Income (Loss) into Income (40) (2,210)
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 8,809 (8,171)
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   (10,190)
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 (1,267) (1,267)
Cash Flow Hedging | Interest rate contracts | Interest expense, net    
Derivative Instruments Gain Loss [Line Items]    
Amount of Gain (Loss) Reclassified from Accumulated Other Comprehensive Income (Loss) into Income $ (40) $ (2,210)