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Fair Value Measurements
6 Months Ended
Feb. 28, 2022
Fair Value Disclosures [Abstract]  
Fair Value Measurements Fair Value Measurements
    ASC Topic 820, Fair Value Measurement, defines fair value as the 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.

We determine fair values of derivative instruments and certain other assets, based on the fair value hierarchy established in ASC Topic 820, which requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. Observable inputs are inputs that reflect the assumptions market participants would use in pricing the asset or liability based on the best information available in the circumstances. ASC Topic 820 describes three levels within its hierarchy that may be used to measure fair value. Level 1 inputs are unadjusted, quoted prices in active markets for identical assets or liabilities. Level 2 inputs include quoted prices for similar assets or liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active and 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 inputs are unobservable inputs that are supported by little or no market activity for the assets or liabilities. Categorization within the valuation hierarchy is based upon the lowest level of input that is significant to the fair value measurement.
    Recurring fair value measurements as of February 28, 2022, and August 31, 2021, are as follows:
February 28, 2022
Quoted Prices in
Active Markets
for Identical
Assets
(Level 1)
Significant
Other
Observable
Inputs
(Level 2)
Significant
Unobservable
Inputs
(Level 3)
Total
(Dollars in thousands)
Assets    
Commodity derivatives$2,162 $806,617 $— $808,779 
Foreign exchange derivatives— 67,239 — 67,239 
Deferred compensation assets49,594 — — 49,594 
Embedded derivative asset— 13,287 — 13,287 
Segregated investments and marketable securities124,928 — — 124,928 
Other assets7,096 — — 7,096 
Total$183,780 $887,143 $— $1,070,923 
Liabilities    
Commodity derivatives$4,592 $564,388 $— $568,980 
Foreign exchange derivatives— 6,231 — 6,231 
Total$4,592 $570,619 $— $575,211 
August 31, 2021
Quoted Prices in
Active Markets
for Identical
Assets
(Level 1)
Significant
Other
Observable
Inputs
(Level 2)
Significant
Unobservable
Inputs
(Level 3)
Total
(Dollars in thousands)
Assets
Commodity derivatives$2,453 $542,253 $— $544,706 
Foreign exchange derivatives— 19,429 — 19,429 
Deferred compensation assets51,940 — — 51,940 
Embedded derivative asset— 16,488 — 16,488 
Segregated investments and marketable securities99,837 — — 99,837 
Other assets6,052 — — 6,052 
Total$160,282 $578,170 $— $738,452 
Liabilities
Commodity derivatives$1,615 $444,247 $— $445,862 
Foreign exchange derivatives— 8,506 — 8,506 
Total$1,615 $452,753 $— $454,368 

    Commodity and foreign exchange derivatives. Exchange-traded futures and options contracts are valued based on unadjusted quoted prices in active markets and are classified within Level 1. Our forward commodity purchase and sales contracts with fixed-price components, select ocean freight contracts and other OTC derivatives are determined using inputs that are generally based on exchange-traded prices and/or recent market bids and offers, including location-specific adjustments, and are classified within Level 2. Location-specific inputs are driven by local market supply and demand and are generally based on broker or dealer quotations or market transactions in either listed or OTC markets. Changes in the fair values of these contracts are recognized in our Condensed Consolidated Statements of Operations as a component of cost of goods sold.

    Deferred compensation and other assets. Our deferred compensation investments consist primarily of rabbi trust assets that are valued based on unadjusted quoted prices on active exchanges and are classified within Level 1. Changes in the fair values of these other assets are primarily recognized in our Condensed Consolidated Statements of Operations as a component of marketing, general and administrative expenses.
Embedded derivative asset. The embedded derivative asset relates to contingent payments inherent to our investment in CF Nitrogen. The inputs used in the fair value measurement include the probability of future upgrades and downgrades of the CF Industries credit rating based on historical credit rating movements of other public companies and the discount rates applied to potential annual payments based on applicable historical and current yield coupon rates. Based on these observable inputs, our fair value measurement is classified within Level 2. See Note 11, Derivative Financial Instruments and Hedging Activities, for additional information.

    Segregated investments and marketable securities. Our segregated investments and marketable securities are comprised of investments in various government agencies and U.S. Treasury securities, which are valued using quoted market prices and classified within Level 1.