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Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2024

Fair Value Disclosures [Abstract]

Schedule of Fair Values of Financial Instruments and Nonfinancial Assets and Liabilities Measured at the Reporting Date

The fair values of these financial instruments are summarized as follows:


				Fair Value at
		Fair Value Hierarchy Levels
				June 30, 2024								December 31, 2023
				Assets				Liabilities				Assets				Liabilities
Derivatives designated as cash flow hedging instruments:
Fuel hedge contracts		2		$	—			$	324			$	—			$	2,918
Foreign currency exchange hedge contracts		2			—				138				358				—
Total derivatives				$	—			$	462			$	358			$	2,918

Changes in Components of Accumulated Other Comprehensive Income (Loss)

Changes in the components of the accumulated balances of other comprehensive income (loss) are as follows:


		Three Months Ended								Six Months Ended
		June 30,								June 30,
		2024				2023				2024				2023
Derivatives:
Fuel Hedge Contracts
Reclassification of derivative losses to earnings—net of tax		$	359			$	1,434			$	238			$	1,804
Change in fair value of derivatives—net of tax			(310	)			(252	)			1,700				(2,158	)
Net change in cash flow derivative fuel hedges—net of tax		$	49			$	1,182			$	1,938			$	(354	)

Foreign Currency Exchange Hedge Contracts
Reclassification of derivative losses (gains) to earnings—net of tax		$	6			$	(279	)		$	42			$	(321	)
Change in fair value of derivatives—net of tax			(5	)			75				(642	)			244
Net change in cash flow derivative foreign currency hedges—net of tax		$	1			$	(204	)		$	(600	)		$	(77	)
Total net change in cash flow derivative hedges - net of tax		$	50			$	978			$	1,338			$	(431	)

Adjustments Reclassified from Accumulated Balances Other Comprehensive Income (Loss) to Earnings

Adjustments reclassified from accumulated balances of other comprehensive income (loss) to earnings are as follows:


				Three Months Ended								Six Months Ended
				June 30,								June 30,
		Statement of Operations Location		2024				2023				2024				2023
Derivatives:
Fuel hedge contracts		Costs of contract revenues		$	482			$	1,918			$	319			$	2,413
Foreign currency exchange hedge contracts		Other expense (income)			7				(372	)			56				(424	)
		Income tax benefit			124				390				95				502
				$	365			$	1,156			$	280			$	1,487