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FAIR VALUE
9 Months Ended
May 31, 2020
Fair Value Disclosures [Abstract]  
Fair value
NOTE 10. FAIR VALUE

The Company has established a fair value hierarchy which prioritizes the inputs to the valuation techniques used to measure fair value into three levels. These levels are determined based on the lowest level input that is significant to the fair value measurement. Levels within the hierarchy are defined as follows:

Level 1 - Unadjusted quoted prices in active markets for identical assets and liabilities;

Level 2 - Quoted prices for similar assets and liabilities in active markets (other than those included in Level 1) which are observable, either directly or indirectly; and

Level 3 - Valuations derived from valuation techniques in which one or more significant inputs or significant value drivers are unobservable.

The following tables summarize information regarding the Company's financial assets and financial liabilities that were measured at fair value on a recurring basis:
  Fair Value Measurements at Reporting Date Using
(in thousands)May 31, 2020Quoted Prices in
Active Markets for
Identical Assets
(Level 1)
Significant Other
Observable Inputs
(Level 2)
Significant
Unobservable  Inputs
(Level 3)
Assets:
Investment deposit accounts (1)
$344,307  $344,307  $—  $—  
Commodity derivative assets (2)
193  193  —  —  
Foreign exchange derivative assets (2)
911  —  911  —  
Liabilities:
Commodity derivative liabilities (2)
10,899  870  —  10,029  
Foreign exchange derivative liabilities (2)
893  —  893  —  

  Fair Value Measurements at Reporting Date Using
(in thousands)August 31, 2019Quoted Prices in
Active Markets for
Identical Assets
(Level 1)
Significant Other
Observable Inputs
(Level 2)
Significant
Unobservable  Inputs
(Level 3)
Assets:
Investment deposit accounts (1)
$66,240  $66,240  $—  $—  
Commodity derivative assets (2)
1,269  1,269  —  —  
Foreign exchange derivative assets (2)
569  —  569  —  
Liabilities:
Commodity derivative liabilities (2)
99  99  —  —  
Foreign exchange derivative liabilities (2)
899  —  899  —  
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(1) Investment deposit accounts are short-term in nature, and the value is determined by principal plus interest. The investment portfolio mix can change each period based on the Company's assessment of investment options.

(2) Derivative assets and liabilities classified as Level 1 are commodity futures contracts valued based on quoted market prices in the London Metal Exchange or New York Mercantile Exchange. Amounts in Level 2 are based on broker quotes in the over-the-counter market. Fair value of Level 3 derivative liabilities is based on unobservable inputs in which there is little or no market data, which requires management’s own assumptions within an internally developed cash flow model. Further discussion regarding the Company's use of derivative instruments is included in Note 9, Derivatives.

There were no material non-recurring fair value remeasurements during the three and nine months ended May 31, 2020.

The carrying values of the Company's short-term items approximate fair value.

The carrying values and estimated fair values of the Company's financial assets and liabilities that are not required to be measured at fair value on the condensed consolidated balance sheets were as follows:
 May 31, 2020August 31, 2019
(in thousands)Fair Value HierarchyCarrying ValueFair ValueCarrying ValueFair Value
2027 Notes (1)
Level 2$300,000  $300,495  $300,000  $303,810  
2026 Notes (1)
Level 2350,000  358,145  350,000  363,444  
2023 Notes (1)
Level 2330,000  334,970  330,000  342,098  
Term Loan (2)
Level 2110,125  110,125  210,125  210,125  
Poland credit facilities (2)
Level 222,350  22,350  —  —  
Short-term borrowings (2)
Level 22,765  2,765  3,929  3,929  
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(1) The fair value of the notes was determined based on indicated market values.
(2) The Term Loan, Poland credit facilities and short-term borrowings contain variable interest rates and carrying value approximates fair value.