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Financial Derivative Instruments and Risk Management - Hedged Percentages Of Our Projected Fuel (Details) | Dec. 31, 2023 | Sep. 30, 2023 | Jun. 30, 2023 | Mar. 31, 2023
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Fuel | Call Option |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |
First Quarter 2024 | 5.00% | 3.00% | 16.00% | 30.00%

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