The effective portion of net gain (loss) reclassified from accumulated other comprehensive income into income on derivative instruments designated and qualifying as hedging instruments.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=56946850&loc=SL5624171-113959

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4D
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=56946850&loc=SL5624177-113959

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- Definition

The effective portion of gains and losses (net) on derivative instruments designated and qualifying as hedging instruments that was recognized in other comprehensive income during the current period.

+ References

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- Definition

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+ References

No definition available.

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Schedule of Derivatives Designated as Cash Flow Hedging Instruments (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Feb. 29, 2016	Feb. 28, 2015	Feb. 29, 2016	Feb. 28, 2015
Derivative [Line Items]
Gain (Loss) Recognized in OCI (Effective Portion)	$ 600	$ (14,864)	$ (17,903)	$ (19,742)
Gain (Loss) Reclassified from Accumulated OCI (Effective Portion)	(7,905)	379	(23,841)	(3,058)
Interest Rate Contracts
Derivative [Line Items]
Gain (Loss) Recognized in OCI (Effective Portion)	(107)		(274)
Interest Rate Contracts \| Interest Expense
Derivative [Line Items]
Gain (Loss) Reclassified from Accumulated OCI (Effective Portion)	(130)	(160)	(415)	(2,445)
Commodity Contracts
Derivative [Line Items]
Gain (Loss) Recognized in OCI (Effective Portion)	707	(15,178)	(17,629)	(19,953)
Commodity Contracts \| Cost of Goods Sold
Derivative [Line Items]
Gain (Loss) Reclassified from Accumulated OCI (Effective Portion)	$ (7,775)	539	(23,422)	(613)
Foreign Currency Contracts
Derivative [Line Items]
Gain (Loss) Recognized in OCI (Effective Portion)		$ 314		$ 211
Foreign Currency Contracts \| Miscellaneous Income (Expense)
Derivative [Line Items]
Gain (Loss) Reclassified from Accumulated OCI (Effective Portion)			$ (4)