Fair Value Measurements and Derivative Instruments - Balance Sheet (Details) - USD ($) $ in Thousands		Jun. 30, 2022	Dec. 31, 2021
Asset Derivatives
Asset Derivatives		$ 261,057	$ 69,808
Liability Derivatives
Liability Derivatives		148,335	200,541
Designated as Hedging Instrument
Asset Derivatives
Asset Derivatives	[1]	239,663	61,276
Liability Derivatives
Liability Derivatives	[1]	126,005	196,066
Notional Disclosures
Carrying Amount of the Hedged Liabilities		647,106	655,502
Cumulative amount of Fair Value Hedging Adjustment Included in the Carrying Amount of the Hedged Liabilities		(2,523)	6,428
Not Designated as Hedging Instrument
Asset Derivatives
Asset Derivatives		21,394	8,532
Liability Derivatives
Liability Derivatives		22,330	4,475
Interest rate swaps | Designated as Hedging Instrument | Other assets
Asset Derivatives
Asset Derivatives	[1]	56,579	0
Interest rate swaps | Designated as Hedging Instrument | Derivative financial instruments
Asset Derivatives
Asset Derivatives	[1]	0	6,478
Liability Derivatives
Liability Derivatives	[1]	1,828	0
Interest rate swaps | Designated as Hedging Instrument | Other long-term liabilities
Liability Derivatives
Liability Derivatives	[1]	0	62,080
Foreign currency forward contracts | Designated as Hedging Instrument | Other assets
Asset Derivatives
Asset Derivatives	[1]	0	2,070
Foreign currency forward contracts | Designated as Hedging Instrument | Derivative financial instruments
Asset Derivatives
Asset Derivatives	[1]	0	7,357
Liability Derivatives
Liability Derivatives	[1]	61,982	116,027
Foreign currency forward contracts | Designated as Hedging Instrument | Other long-term liabilities
Liability Derivatives
Liability Derivatives	[1]	59,580	8,813
Foreign currency forward contracts | Not Designated as Hedging Instrument | Other assets
Asset Derivatives
Asset Derivatives		0	0
Foreign currency forward contracts | Not Designated as Hedging Instrument | Derivative financial instruments
Asset Derivatives
Asset Derivatives		0	0
Liability Derivatives
Liability Derivatives		0	0
Foreign currency forward contracts | Not Designated as Hedging Instrument | Other long-term liabilities
Liability Derivatives
Liability Derivatives		0	0
Fuel swaps | Designated as Hedging Instrument | Other assets
Asset Derivatives
Asset Derivatives	[1]	32,202	13,452
Fuel swaps | Designated as Hedging Instrument | Derivative financial instruments
Asset Derivatives
Asset Derivatives	[1]	150,882	31,919
Liability Derivatives
Liability Derivatives	[1]	1,044	7,944
Fuel swaps | Designated as Hedging Instrument | Other long-term liabilities
Liability Derivatives
Liability Derivatives	[1]	1,571	1,202
Fuel swaps | Not Designated as Hedging Instrument | Other assets
Asset Derivatives
Asset Derivatives		0	102
Fuel swaps | Not Designated as Hedging Instrument | Derivative financial instruments
Asset Derivatives
Asset Derivatives		21,394	8,430
Liability Derivatives
Liability Derivatives		22,330	3,264
Fuel swaps | Not Designated as Hedging Instrument | Other long-term liabilities
Liability Derivatives
Liability Derivatives		$ 0	$ 1,211

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