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Fair Value Measurements (Changes in Components of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Derivatives Fair Value [Line Items]    
Net change in cash flow derivative hedges—net of tax [1] $ 362 $ 1,288
Fuel Hedge Contracts [Member]    
Derivatives Fair Value [Line Items]    
Reclassification of derivative losses (gains) to earnings - net of tax (120) 122
Change in fair value of derivatives—net of tax 451 2,011
Net change in cash flow derivative hedges—net of tax 571 1,889
Foreign Currency Exchange Hedge Contracts [Member]    
Derivatives Fair Value [Line Items]    
Reclassification of derivative losses (gains) to earnings - net of tax   (36)
Change in fair value of derivatives—net of tax   (637)
Net change in cash flow derivative hedges—net of tax   $ (601)
Interest Rate Swaps [Member]    
Derivatives Fair Value [Line Items]    
Reclassification of derivative losses (gains) to earnings - net of tax (68)  
Change in fair value of derivatives—net of tax (141)  
Net change in cash flow derivative hedges—net of tax $ (209)  
[1] Net of income tax provision of $123 and $435 for the three months ended March 31, 2025 and 2024, respectively.