Fair Value Measurements and Derivative Instruments - Balance Sheet (Details) - USD ($) $ in Thousands		Sep. 30, 2023	Dec. 31, 2022
Asset Derivatives
Asset Derivatives		$ 217,881	$ 203,802
Liability Derivatives
Liability Derivatives		172,948	135,608
Designated as Hedging Instrument
Asset Derivatives
Asset Derivatives	[1]	216,297	203,802
Liability Derivatives
Liability Derivatives	[1]	172,948	135,608
Not Designated as Hedging Instrument
Asset Derivatives
Asset Derivatives		1,584	0
Liability Derivatives
Liability Derivatives		0	0
Interest rate swaps | Designated as Hedging Instrument | Other assets
Asset Derivatives
Asset Derivatives	[1]	114,101	115,049
Interest rate swaps | Designated as Hedging Instrument | Other long-term liabilities
Liability Derivatives
Liability Derivatives	[1]	0	0
Foreign currency forward contracts | Designated as Hedging Instrument | Other assets
Asset Derivatives
Asset Derivatives	[1]	8,587	25,504
Foreign currency forward contracts | Designated as Hedging Instrument | Derivative financial instruments
Asset Derivatives
Asset Derivatives	[1]	13,041	18,892
Liability Derivatives
Liability Derivatives	[1]	156,714	84,953
Foreign currency forward contracts | Designated as Hedging Instrument | Other long-term liabilities
Liability Derivatives
Liability Derivatives	[1]	14,332	149
Fuel swaps | Designated as Hedging Instrument | Other assets
Asset Derivatives
Asset Derivatives	[1]	23,522	4,166
Fuel swaps | Designated as Hedging Instrument | Derivative financial instruments
Asset Derivatives
Asset Derivatives	[1]	57,046	40,191
Liability Derivatives
Liability Derivatives	[1]	1,451	46,359
Fuel swaps | Designated as Hedging Instrument | Other long-term liabilities
Liability Derivatives
Liability Derivatives	[1]	451	4,147
Fuel swaps | Not Designated as Hedging Instrument | Other assets
Asset Derivatives
Asset Derivatives		1,584	0
Fuel swaps | Not Designated as Hedging Instrument | Other long-term liabilities
Liability Derivatives
Liability Derivatives		$ 0	$ 0

[1] Subtopic 815-20 “Hedging-General” under ASC 815.