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Financial Instruments
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Mar. 31, 2013
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| Derivative Instruments and Hedging Activities Disclosure [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Financial Instruments | FINANCIAL INSTRUMENTS Fuel Hedges We have entered into multiple swap agreements designated as cash flow hedges to mitigate some of our exposure related to changes in diesel fuel prices. The swaps qualified for, and were designated as, effective hedges of changes in the prices of forecasted diesel fuel purchases (fuel hedges). The following table summarizes our outstanding fuel hedges as of March 31, 2013:
If the national U.S. on-highway average price for a gallon of diesel fuel as published by the Department of Energy exceeds the contract price per gallon, we receive the difference between the average price and the contract price (multiplied by the notional gallons) from the counter-party. If the average price is less than the contract price per gallon, we pay the difference to the counter-party. The fair values of our fuel hedges are determined using standard option valuation models with assumptions about commodity prices being based on those observed in underlying markets (Level 2 in the fair value hierarchy). The aggregated fair values of our outstanding fuel hedges at March 31, 2013 and December 31, 2012 were current assets of $5.0 million and $3.1 million, and current liabilities of $0.1 million and $0.4 million, respectively, and have been recorded in other current assets and other accrued liabilities in our consolidated balance sheets, respectively. The ineffective portions of the changes in fair values resulted in (losses) gains of less than $0.1 million for the three months ended March 31, 2013 and 2012, respectively, and have been recorded in other income (expense), net in our consolidated statements of income. The following table summarizes the impact of our fuel hedges on our comprehensive income for the three months ended March 31, 2013 and 2012:
Recycling Commodity Hedges Our revenue from sales of recycling commodities is primarily from sales of old corrugated cardboard (OCC) and old newspaper (ONP). We use derivative instruments such as swaps and costless collars designated as cash flow hedges to manage our exposure to changes in prices of these commodities. We have entered into multiple agreements related to forecasted OCC and ONP sales. The agreements qualified for, and were designated as, effective hedges of changes in the prices of certain forecasted recycling commodity sales (commodity hedges). We entered into costless collar agreements on forecasted sales of OCC and ONP. The agreements involve combining a purchased put option giving us the right to sell OCC and ONP at an established floor strike price with a written call option obligating us to deliver OCC and ONP at an established cap strike price. The puts and calls have the same settlement dates, are net settled in cash on such dates and have the same terms to expiration. The contemporaneous combination of options resulted in no net premium for us and represent costless collars. Under the agreements, we will make or receive no payments as long as the settlement price is between the floor price and cap price. However, if the settlement price is above the cap, we will pay the counterparty an amount equal to the excess of the settlement price over the cap times the monthly volumes hedged. Also, if the settlement price is below the floor, the counterparty will pay us the deficit of the settlement price below the floor times the monthly volumes hedged. The objective of these agreements is to reduce the variability of the cash flows of the forecasted sales of OCC and ONP between two designated strike prices. The following costless collar hedges were outstanding as of March 31, 2013:
The costless collar hedges are recorded on the balance sheet at fair value. The fair values of the costless collars are determined using standard option valuation models with assumptions about commodity prices based upon forward commodity price curves in underlying markets (Level 2 in the fair value hierarchy). The aggregated fair values of the outstanding recycling commodity hedges at March 31, 2013 and December 31, 2012 were current assets of $0.4 million and $1.0 million, respectively, and current liabilities of $1.7 million and $1.2 million, respectively, and have been recorded in other current assets and other accrued liabilities in our consolidated balance sheets, respectively. The ineffective portions of the changes in fair values resulted in (losses) gains of less than $0.1 million for the three months ended March 31, 2013 and 2012, respectively, and have been recorded in other income (expense), net in our consolidated statements of income. The following table summarizes the impact of our recycling commodity hedges on our comprehensive income for the three months ended March 31, 2013 and 2012:
Fair Value Measurements In measuring fair values of assets and liabilities, we use valuation techniques that maximize the use of observable inputs (Level 1) and minimize the use of unobservable inputs (Level 3). We also use market data or assumptions that we believe market participants would use in pricing an asset or liability, including assumptions about risk when appropriate. As of March 31, 2013 and December 31, 2012, our assets and liabilities that are measured at fair value on a recurring basis include the following:
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