Fair Value Measurements and Derivative Instruments - Designated Cash Flow Hedges (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Effect of derivative instruments involved in hedging on the consolidated financial statements
Amount of Gain (Loss) Recognized in Accumulated Other Comprehensive Loss on Derivatives	$ (18,494)	$ 49,248	$ 23,752	$ (172,323)
Amount of Gain (Loss) Reclassified from Accumulated Other Comprehensive Loss into Income	(5,230)	(16,887)	(24,762)	(62,184)
Derivative Instruments, Gain (Loss) Recognized in Income, Ineffective Portion and Amount Excluded from Effectiveness Testing, Net [Abstract]
Net inception fair value at January 1, 2021					$ (1,915)
Amount of gain recognized in income on derivatives for the nine month period ended September 30, 2021			4,966
Amount of gain (loss) remaining to be amortized in accumulated other comprehensive loss, as of September 30, 2021			(3,141)
Fair value at September 30, 2021	(90)		(90)
Interest rate swaps
Effect of derivative instruments involved in hedging on the consolidated financial statements
Amount of Gain (Loss) Recognized in Accumulated Other Comprehensive Loss on Derivatives	1,534	(42,488)	29,228	(90,677)
Interest rate swaps | Interest expense, net of interest capitalized
Effect of derivative instruments involved in hedging on the consolidated financial statements
Amount of Gain (Loss) Reclassified from Accumulated Other Comprehensive Loss into Income	(11,418)	(6,532)	(32,376)	(15,939)
Foreign currency forward contracts
Effect of derivative instruments involved in hedging on the consolidated financial statements
Amount of Gain (Loss) Recognized in Accumulated Other Comprehensive Loss on Derivatives	(48,221)	96,821	(150,376)	39,161
Foreign currency forward contracts | Depreciation and amortization expenses
Effect of derivative instruments involved in hedging on the consolidated financial statements
Amount of Gain (Loss) Reclassified from Accumulated Other Comprehensive Loss into Income	(3,905)	(3,782)	(11,541)	(10,899)
Foreign currency forward contracts
Effect of derivative instruments involved in hedging on the consolidated financial statements
Amount of Gain (Loss) Recognized in Accumulated Other Comprehensive Loss on Derivatives	0	0	0	0
Foreign currency forward contracts | Other income (expense)
Effect of derivative instruments involved in hedging on the consolidated financial statements
Amount of Gain (Loss) Reclassified from Accumulated Other Comprehensive Loss into Income	(505)	(1,511)	(2,311)	(5,855)
Fuel swaps
Effect of derivative instruments involved in hedging on the consolidated financial statements
Amount of Gain (Loss) Recognized in Accumulated Other Comprehensive Loss on Derivatives	0	0	0	0
Fuel swaps | Other income (expense)
Effect of derivative instruments involved in hedging on the consolidated financial statements
Amount of Gain (Loss) Reclassified from Accumulated Other Comprehensive Loss into Income	(2)	536	(416)	3,029
Fuel swaps | Fuel
Effect of derivative instruments involved in hedging on the consolidated financial statements
Amount of Gain (Loss) Reclassified from Accumulated Other Comprehensive Loss into Income	10,600	(5,598)	21,882	(32,520)
Fuel Swap
Effect of derivative instruments involved in hedging on the consolidated financial statements
Amount of Gain (Loss) Recognized in Accumulated Other Comprehensive Loss on Derivatives	28,193	(5,085)	144,900	(120,807)
Fuel Swap | Fuel
Effect of derivative instruments involved in hedging on the consolidated financial statements
Amount of Gain (Loss) Reclassified from Accumulated Other Comprehensive Loss into Income	$ 10,600	$ (5,598)	$ 21,882	$ (32,520)