Fair value is defined as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. A fair value hierarchy has been established by GAAP that requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. The accounting guidance describes three levels of inputs that may be used to measure fair value:

Level 2—Observable inputs other than Level 1 prices such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities.

Level 3—Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities.

The Company is exposed to counterparty credit risk associated with non-performance of its various derivative instruments. The Company’s risk would be limited to any unrealized gains on current positions. To help mitigate this risk, the Company transacts only with counterparties that are rated as investment grade or higher. In addition, all counterparties are monitored on a continuous basis.

The Company utilizes the market approach to measure fair value for its financial assets and liabilities. The market approach uses prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities. At times, the Company holds certain derivative contracts that it uses to manage commodity price risk and foreign currency exchange rate risk. The Company does not hold or issue derivatives for speculative or trading purposes. The fair values of these financial instruments are summarized as follows:

		Fair Value at
	Fair Value
	Hierarchy	June 30, 2022				December 31, 2021
	Levels	Assets		Liabilities		Assets		Liabilities

Derivatives designated as cash flow hedging instruments:
Fuel Hedge Contracts	2	$	8,710	$	-	$	630	$	-
Foreign Currency Exchange Hedge Contracts	2		81		322		-		-
Total derivatives		$	8,791	$	322	$	630	$	-

The Company is exposed to certain market risks, including commodity price risk as it relates to diesel fuel purchase requirements, which occur in the normal course of business. The Company enters into heating oil commodity swap contracts to hedge the risk that fluctuations in diesel fuel prices could have an adverse impact on cash flows associated with its domestic dredging contracts. The Company’s typical goal is to hedge approximately 80% of the eligible fuel requirements for work in domestic backlog.

As of June 30, 2022, the Company was party to various swap arrangements to hedge a portion of the price of its diesel fuel purchase requirements for work in its backlog to be performed through June 2023. As of June 30, 2022, there were 6.2 million gallons remaining on these contracts representing forecasted domestic fuel purchases through February 2023. Under these swap agreements, the Company will pay fixed prices ranging from $1.91 to $3.95 per gallon.

At June 30, 2022 and December 31, 2021, the fair value asset of the fuel hedge contracts were estimated to be $8,710 and $630, respectively, and are recorded in prepaid expenses and other current assets. For fuel hedge contracts considered to be highly effective, the gains reclassified to earnings from changes in fair value of derivatives, net of cash settlements and taxes, for the six months ended June 30, 2022 were $7,200. The remaining gains and losses included in accumulated other comprehensive income (loss) at June 30, 2022 will be reclassified into earnings over the next twelve months, corresponding to the period during which the hedged fuel is expected to be utilized. Changes in the fair value of fuel hedge contracts not considered highly effective are recorded as cost of contract revenues in the Statement of Operations. The fair values of fuel hedges are corroborated using inputs that are readily observable in public markets; therefore, the Company determines fair value of these fuel hedges using Level 2 inputs.

The Company is exposed to certain market risks, including foreign currency exchange rate risks related to the purchase of new vessel build materials in Europe. The Company enters into foreign currency exchange forward contracts to hedge the risk that fluctuations in the Euro in relation to the Dollar could have an adverse impact on cash flows associated with its equipment builds.

As of June 30, 2022, the Company was party to various foreign exchange forward contract arrangements to hedge the purchase of materials through November 2024. As of June 30, 2022, there were 17.5 million Euro of payments remaining on these hedge contracts which is the full value of the hedge contacts through November 2024 as the first settlement will not occur until the third quarter of 2022. Under these hedge contracts, the Company will pay fixed prices ranging from $1.06 to $1.13 per Euro.

As of June 30, 2022, the fair value asset of the foreign currency exchange hedge contracts was estimated to be $81 and is recorded in prepaid expenses and other current assets. As of June 30, 2022, the fair value liability of foreign currency exchange hedge contracts was estimated to be $322 and is recorded in accrued liabilities. There were no foreign currency exchange hedge contracts as of December 31, 2021. For foreign currency exchange hedge contracts considered to be highly effective, the gains reclassified to earnings from changes in fair value of derivatives, net of cash settlements and taxes, for the six months ended June 30, 2022 were $0. The remaining gains and losses included in accumulated other comprehensive income (loss) at June 30, 2022 will be reclassified into earnings over the next twenty-nine months, corresponding to the period during which the hedged currency is expected to be utilized. Changes in the fair value of foreign currency exchange hedge contracts not considered highly effective are recorded as other expenses in the Statement of Operations. The fair values of foreign currency exchange hedges are corroborated using inputs that are readily observable in public markets; therefore, the Company determines the fair value of these foreign currency exchange hedges using Level 2 inputs.

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,
	2022			2021			2022			2021
Derivatives:
Fuel Hedge Contracts
Reclassification of derivative gains to earnings—net of tax	$	(4,719	)	$	(1,878	)	$	(7,200	)	$	(3,404	)
Change in fair value of derivatives—net of tax		4,584			2,282			13,300			5,694
Net change in cash flow derivative fuel hedges—net of tax	$	(135	)	$	404		$	6,100		$	2,290

Foreign Currency Exchange Hedge Contracts
Change in fair value of derivatives—net of tax		(241	)		-			(241	)		-
Net change in cash flow derivative foreign currency hedges—net of tax	$	(241	)	$	-		$	(241	)	$	-
Total net change in cash flow derivative hedges—net of tax	$	(376	)	$	404		$	5,859		$	2,290

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	2022			2021			2022			2021
Derivatives:
Fuel Hedge Contracts	Costs of contract revenues	$	(6,313	)	$	(2,513	)	$	(9,632	)	$	(4,554	)
	Income tax provision		(1,594	)		(635	)		(2,432	)		(1,150	)
		$	(4,719	)	$	(1,878	)	$	(7,200	)	$	(3,404	)

The carrying value of financial instruments included in current assets and current liabilities approximates fair value due to the short-term maturities of these instruments. Based on timing of the cash flows and comparison to current market interest rates, the carrying value of our revolving credit agreement approximates fair value. In May 2021, the Company sold $325,000 of the 2029 Notes, which were outstanding at June 30, 2022 (see Note 4, Long-term debt). The 2029 Notes are senior unsecured obligations of the Company and its subsidiaries that guarantee the 2029 Notes. The fair value of the 2029 Notes was $281,180 at June 30, 2022, which is a Level 1 fair value measurement as the senior notes’ value was obtained using quoted prices in active markets. It is impracticable to determine the fair value of outstanding letters of credit or performance, bid and payment bonds due to uncertainties as to the amount and timing of future obligations, if any.