Fair Value Measurements and Derivative Instruments - Balance Sheet (Details) - USD ($) $ in Thousands		Mar. 31, 2022	Dec. 31, 2021
Asset Derivatives
Asset Derivatives		$ 241,254	$ 69,808
Liability Derivatives
Liability Derivatives		117,708	200,541
Designated as Hedging Instrument
Asset Derivatives
Asset Derivatives	[1]	224,423	61,276
Liability Derivatives
Liability Derivatives	[1]	101,026	196,066
Notional Disclosures
Carrying Amount of the Hedged Liabilities		649,755	655,502
Cumulative amount of Fair Value Hedging Adjustment Included in the Carrying Amount of the Hedged Liabilities		404	6,428
Not Designated as Hedging Instrument
Asset Derivatives
Asset Derivatives		16,831	8,532
Liability Derivatives
Liability Derivatives		16,682	4,475
Interest rate swaps | Designated as Hedging Instrument | Other assets
Asset Derivatives
Asset Derivatives	[1]	23,791	0
Interest rate swaps | Designated as Hedging Instrument | Derivative financial instruments
Asset Derivatives
Asset Derivatives		741	6,478
Liability Derivatives
Liability Derivatives		0	0
Interest rate swaps | Designated as Hedging Instrument | Other long-term liabilities
Liability Derivatives
Liability Derivatives	[1]	1,072	62,080
Foreign currency forward contracts | Designated as Hedging Instrument | Other assets
Asset Derivatives
Asset Derivatives	[1]	3,932	2,070
Foreign currency forward contracts | Designated as Hedging Instrument | Derivative financial instruments
Asset Derivatives
Asset Derivatives	[1]	15,133	7,357
Liability Derivatives
Liability Derivatives	[1]	84,872	116,027
Foreign currency forward contracts | Designated as Hedging Instrument | Other long-term liabilities
Liability Derivatives
Liability Derivatives	[1]	15,082	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]	35,370	13,452
Fuel swaps | Designated as Hedging Instrument | Derivative financial instruments
Asset Derivatives
Asset Derivatives	[1]	145,456	31,919
Liability Derivatives
Liability Derivatives	[1]	0	7,944
Fuel swaps | Designated as Hedging Instrument | Other long-term liabilities
Liability Derivatives
Liability Derivatives	[1]	0	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		16,831	8,430
Liability Derivatives
Liability Derivatives		16,682	3,264
Fuel swaps | Not Designated as Hedging Instrument | Other long-term liabilities
Liability Derivatives
Liability Derivatives		$ 0	$ 1,211

[1] Accounting Standard Codification 815-20 “Derivatives and Hedging.”