Fair Value Measurements - Quantitative Information about Level 3 Fair Value (Details) - Fuel derivative contracts - Significant unobservable inputs (Level 3) - Measurement Input, Option Volatility [Member]	Dec. 31, 2021
2022 | Maximum
Quantitative Information About Level 3 [Line Items]
Derivative asset, measurement input	0.53
2022 | Weighted Average [Member]
Quantitative Information About Level 3 [Line Items]
Derivative asset, measurement input	0.41
2022 | Minimum
Quantitative Information About Level 3 [Line Items]
Derivative asset, measurement input	0.21
2023 | Maximum
Quantitative Information About Level 3 [Line Items]
Derivative asset, measurement input	0.40
2023 | Weighted Average [Member]
Quantitative Information About Level 3 [Line Items]
Derivative asset, measurement input	0.34
2023 | Minimum
Quantitative Information About Level 3 [Line Items]
Derivative asset, measurement input	0.29
2024 | Maximum
Quantitative Information About Level 3 [Line Items]
Derivative asset, measurement input	0.33
2024 | Weighted Average [Member]
Quantitative Information About Level 3 [Line Items]
Derivative asset, measurement input	0.28
2024 | Minimum
Quantitative Information About Level 3 [Line Items]
Derivative asset, measurement input	0.26