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Fair Value Measurements (Tables)

9 Months Ended

Sep. 30, 2023

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
				September 30, 2023								December 31, 2022
				Assets				Liabilities				Assets				Liabilities
Derivatives designated as cash flow hedging instruments:
Fuel hedge contracts		2		$	2,868			$	—			$	—			$	638
Foreign currency exchange hedge contracts		2			—				374				831				6
Total derivatives				$	2,868			$	374			$	831			$	644

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								Nine Months Ended
		September 30,								September 30,
		2023				2022				2023				2022
Derivatives:
Fuel Hedge Contracts
Reclassification of derivative (gains) losses to earnings—net of tax			(297	)			(2,358	)			1,507			$	(9,558	)
Change in fair value of derivatives—net of tax			3,271				(3,590	)			1,113				9,228
Net change in cash flow derivative fuel hedges—net of tax		$	2,974			$	(5,948	)		$	2,620			$	(330	)
Foreign Currency Exchange Hedge Contracts
Reclassification of derivative gains to earnings—net of tax		$	(198	)		$	(196	)		$	(519	)		$	(196	)
Change in fair value of derivatives—net of tax			(621	)			(1,078	)			(377	)			(837	)
Net change in cash flow derivative foreign currency hedges—net of tax		$	(819	)		$	(1,274	)		$	(896	)		$	(1,033	)
Total net change in cash flow derivative hedges - net of tax		$	2,155			$	(7,222	)		$	1,724			$	(1,363	)

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								Nine Months Ended
				September 30,								September 30,
		Statement of Operations Location		2023				2022				2023				2022
Derivatives:
Fuel hedge contracts		Costs of contract revenues		$	(649	)		$	(3,154	)		$	1,425			$	(12,786	)
Foreign currency exchange hedge contracts		Other income (expense)		$	(13	)		$	—				(437	)			—
		Income tax provision			(167	)			(600	)			—				(3,032	)
				$	(495	)		$	(2,554	)		$	988			$	(9,754	)