FAIR VALUE (Tables)

6 Months Ended

Feb. 29, 2016

Financial assets and financial liabilities measured at fair value on a recurring basis

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)	February 29, 2016		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets:
Money market investments⁽¹⁾	$	276,739	$	276,739	$	—	$	—
Commodity derivative assets⁽²⁾	120		96		24		—
Foreign exchange derivative assets⁽²⁾	4,265		—		4,265		—
Liabilities:
Commodity derivative liabilities⁽²⁾	810		688		122		—
Foreign exchange derivative liabilities⁽²⁾	1,364		—		1,364		—



			Fair Value Measurements at Reporting Date Using
(in thousands)	August 31, 2015		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets:
Money market investments⁽¹⁾	$	271,840	$	271,840	$	—	$	—
Commodity derivative assets⁽²⁾	865		846		19		—
Foreign exchange derivative assets⁽²⁾	4,588		—		4,588		—
Liabilities:
Commodity derivative liabilities⁽²⁾	666		537		129		—
Foreign exchange derivative liabilities⁽²⁾	2,137		—		2,137		—

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(1) Money market investments are short-term in nature, and the value is determined by broker quoted prices in active markets. 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 Commodity Exchange, Inc. Amounts in Level 2 are based on broker quotes in the over-the-counter market. Further discussion regarding the Company's use of derivative instruments and the classification of the assets and liabilities is included in Note 9, Derivatives and Risk Management.

Financial assets and liabilities not required to be measured at 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:



		February 29, 2016				August 31, 2015
(in thousands)	Fair Value Hierarchy	Carrying Value		Fair Value		Carrying Value		Fair Value
2023 Notes⁽¹⁾	Level 2	$	330,000	$	281,130	$	330,000	$	300,630
2018 Notes⁽¹⁾	Level 2	411,186		417,810		513,680		530,000
2017 Notes⁽¹⁾	Level 2	304,087		307,500		405,573		419,400

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(1) The fair values of the 2023 Notes, 2018 Notes and 2017 Notes are estimated based on readily available market prices of these notes at February 29, 2016 and August 31, 2015 or similar notes with the same maturities, rating and interest rates.