Fair value is defined as the price at which an orderly transaction to sell an asset or to transfer a liability would take place between market participants at the measurement date under current market conditions (that is, an exit price at the measurement date from the perspective of a market participant that holds the asset or owes the liability).

Fair Value Hierarchy

The following hierarchy for inputs used in measuring fair value should maximize the use of observable inputs and minimize the use of unobservable inputs by requiring that the most observable inputs be used when available:

Derivatives

We are exposed to market risk attributable to changes in interest rates, foreign currency exchange rates and fuel prices. We attempt to minimize these risks through a combination of our normal operating and financing activities and through the use of derivatives. We assess whether derivatives used in hedging transactions are “highly effective” in offsetting changes in the cash flow of our hedged forecasted transactions. We use regression analysis for this hedge relationship and high effectiveness is achieved when a statistically valid relationship reflects a high degree of offset and correlation between the fair values of the derivative and the hedged forecasted transaction. Cash flows from the derivatives are classified in the same category as the cash flows from the underlying hedged transaction. The determination of ineffectiveness is based on the amount of dollar offset between the cumulative change in fair value of the derivative and the cumulative change in fair value of the hedged transaction at the end of the reporting period. If it is determined that a derivative is not highly effective as a hedge, or if the hedged forecasted transaction is no longer probable of occurring, then the amount recognized in accumulated other comprehensive income (loss) is released to earnings. In addition, the ineffective portion of our highly effective hedges is recognized in earnings immediately and reported in other income (expense) in our consolidated statements of operations. There are no amounts excluded from the assessment of hedge effectiveness and there are no credit-risk-related contingent features in our derivative agreements.

We monitor concentrations of credit risk associated with financial and other institutions with which we conduct significant business. Credit risk, including but not limited to counterparty non-performance under derivatives and our revolving credit facility, is not considered significant, as we primarily conduct business with large, well-established financial institutions that we have established relationships with and that have credit risks acceptable to us or the credit risk is spread out among a large number of creditors. We do not anticipate non-performance by any of our significant counterparties.

The following table sets forth our derivatives measured at fair value and discloses the balance sheet location (in thousands):

The fair values of swap and forward contracts are determined based on inputs that are readily available in public markets or can be derived from information available in publicly quoted markets. The Company determines the value of options and collars utilizing an option pricing model based on inputs that are either readily available in public markets or can be derived from information available in publicly quoted markets. The option pricing model used by the Company is an industry standard model for valuing options and is used by the broker/dealer community. The inputs to this option pricing model are the option strike price, underlying price, risk free rate of interest, time to expiration, and volatility. The fair value of option contracts considers both the intrinsic value and any remaining time value associated with those derivatives that have not yet settled. The Company also considers counterparty credit risk and its own credit risk in its determination of all estimated fair values. Our derivatives and financial instruments were categorized as Level 2 in the fair value hierarchy, and we had no derivatives or financial instruments categorized as Level 1 or Level 3.

Our derivative contracts include rights of offset with our counterparties. We have elected to net certain assets and liabilities within counterparties. We are not required to post cash collateral related to our derivative instruments. The following table discloses the amounts recognized within the balance sheets (in thousands):

Fuel Swaps

As of March 31, 2015, we had fuel swaps maturing through December 31, 2018 which are used to mitigate the financial impact of volatility in fuel prices pertaining to approximately 1.2 million metric tons of our projected fuel purchases.

The effects on the consolidated financial statements of the fuel swaps which were designated as cash flow hedges were as follows (in thousands):

Fuel Collars and Options

We had fuel collars and fuel options maturing through December 2014, which were used to mitigate the financial impact of volatility in fuel prices of our fuel purchases.

The effects on the consolidated financial statements of the fuel collars which were designated as cash flow hedges were as follows (in thousands):

The effects on the consolidated financial statements of the fuel options which were not designated as hedging instruments were as follows (in thousands):

Foreign Currency Options

We had foreign currency options that matured through January 2014, which consisted of call options with deferred premiums. These options were used to mitigate the financial impact of volatility in foreign currency exchange rates related to our ship construction contracts denominated in euros. If the spot rate at the date the ships were delivered was less than the strike price under these option contracts, we would have paid the deferred premium and would not exercise the foreign currency options.

The effects on the consolidated financial statements of the foreign currency options which were designated as cash flow hedges were as follows (in thousands):

Foreign Currency Forward Contracts

As of March 31, 2015, we had foreign currency forward contracts which are used to mitigate the financial impact of volatility in foreign currency exchange rates related to our ship construction contracts and forecasted Dry-dock payments denominated in euros. The notional amount of our foreign currency forward contracts was €888.5 million, or $953.4 million based on the euro/U.S. dollar exchange rate as of March 31, 2015.

The effects on the consolidated financial statements of the foreign currency forward contracts which were designated as cash flow hedges were as follows (in thousands):

Foreign Currency Collar

We had a foreign currency collar that matured in January 2014, which was used to mitigate the volatility of foreign currency exchange rates related to our ship construction contracts denominated in euros.

The effects on the consolidated financial statements of the foreign currency collar which was designated as a cash flow hedge was as follows (in thousands):

As of March 31, 2015, we had a foreign currency collar which is used to mitigate the financial impact of volatility in foreign currency exchange rates related to a ship construction contract. The notional amount of our foreign currency collar was €274.4 million, or $294.5 million based on the euro/U.S. dollar exchange rate as of March 31, 2015.

The effect on the consolidated financial statements of the foreign currency collar contract which was not designated as a cash flow hedge was as follows (in thousands):

Interest Rate Swaps

As of March 31, 2015, we had interest rate swap agreements to mitigate our exposure to interest rate movements and to manage our interest expense. The notional amount of outstanding debt associated with the interest rate swap agreements was $1.2 billion.

The effects on the consolidated financial statements of the interest rates swaps which were designated as cash flow hedges were as follows (in thousands):

We had an interest rate swap that matured in January 2015, which was used to mitigate our exposure to interest rate movements and to manage our interest expense.

The effect on the consolidated financial statements of the interest rate swap which was not designated as a cash flow hedge was as follows (in thousands):

Long-Term Debt

Other