| Financial Derivative Instruments (Additional Information) (Details) $ in Thousands, Gallons in Millions | 6 Months Ended | 12 Months Ended | 
|---|---|---|
| Jun. 30, 2024  USD ($)  Gallons | Dec. 31, 2023  USD ($)  Gallons | |
| Financial Derivative Instruments [Abstract] | ||
| Fuel gallons hedged | Gallons | 1.7 | 1.2 | 
| Assets derivative fair value | $ 100 | $ 100 | 
| Firm commitment fair value | 100 | 100 | 
| Cash collateral provided to counter parties | $ 100 | $ 0 | 
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- Definition Cash Collaterals Provided To Counterparties No definition available. 
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- Definition Financial Derivative Instruments [Abstract] No definition available. 
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| X | ||||||||||
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- Definition Fuel gallons hedge. No definition available. 
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- Definition Fair value of all derivative assets designated as fair value hedging instruments. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
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| X | ||||||||||
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- Definition Fair value of all derivative liabilities designated as fair value hedging instruments. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
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