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)

v3.21.2
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, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Derivative Instruments Gain Loss [Line Items]        
Fuel $ 54,090 $ 48,992 $ 96,693 $ 174,016
Depreciation and amortization 174,262 179,252 344,578 377,449
Interest expense, net 137,259 114,537 961,700 183,444
Other income (expense), net 25,501 (14,418) 52,744 (8,595)
Other income (expense), net        
Derivative Instruments Gain Loss [Line Items]        
Amount of Gain (Loss) Reclassified from Accumulated Other Comprehensive Income (Loss) into Income (1,538) (11,964) (11,728) (26,284)
Cash Flow Hedging        
Derivative Instruments Gain Loss [Line Items]        
Amount of Gain (Loss) Reclassified from Accumulated Other Comprehensive Income (Loss) into Income (13,542) (28,782) (35,380) (50,781)
Cash Flow Hedging | Fuel        
Derivative Instruments Gain Loss [Line Items]        
Amount of Gain (Loss) Reclassified from Accumulated Other Comprehensive Income (Loss) into Income (8,652) (13,878) (16,823) (20,095)
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 (1,266) (1,266) (2,533) (2,395)
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 (2,086) (1,674) (4,296) (2,007)
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 (8,652) (13,878) (16,823) (20,095)
Cash Flow Hedging | Fuel contracts | Other (Income) Expense, net        
Derivative Instruments Gain Loss [Line Items]        
Amount of loss reclassified from accumulated other comprehensive income (loss) into income as a result that a forecasted transaction is no longer probable of occurring (1,538) (11,964) (11,728) (26,284)
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 (1,266) (1,266) (2,533) (2,395)
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 $ (2,086) $ (1,674) $ (4,296) $ (2,007)