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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, 2024
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2025 | Minimum |
Quantitative Information About Level 3 [Line Items] |
Derivative asset, measurement input | 0.24
2025 | Maximum |
Quantitative Information About Level 3 [Line Items] |
Derivative asset, measurement input | 0.34
2025 | Weighted Average |
Quantitative Information About Level 3 [Line Items] |
Derivative asset, measurement input | 0.27
2026 | Minimum |
Quantitative Information About Level 3 [Line Items] |
Derivative asset, measurement input | 0.22
2026 | Maximum |
Quantitative Information About Level 3 [Line Items] |
Derivative asset, measurement input | 0.29
2026 | Weighted Average |
Quantitative Information About Level 3 [Line Items] |
Derivative asset, measurement input | 0.24
2027 | Minimum |
Quantitative Information About Level 3 [Line Items] |
Derivative asset, measurement input | 0.22
2027 | Maximum |
Quantitative Information About Level 3 [Line Items] |
Derivative asset, measurement input | 0.24
2027 | Weighted Average |
Quantitative Information About Level 3 [Line Items] |
Derivative asset, measurement input | 0.23

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