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DERIVATIVES AND RISK MANAGEMENT (Non-designated Hedges) (Details) R in Millions, $ in Millions		3 Months Ended
	Jul. 26, 2013	Mar. 31, 2018 USD ($)	Mar. 31, 2018 ZAR (R)
Forward Contracts | Forward contracts not designated as hedging instruments
Derivative [Line Items]
Fair value of designated forward contracts | $		$ 1.0
Hedged amount | R			R 14.0
Interest Rate Swaps | Designated as cash flow hedges
Derivative [Line Items]
Derivative, term of contract	5 years
Fixed interest rate (as a percent)		1.288%	1.288%
Applicable margin based on the Company's consolidated leverage ratio (as a percent)		3.50%

X

- Definition

Represents the applicable margin added to the variable rate of the debt instrument which varies based upon the Company's consolidated leverage ratio (the "Ratio").

+ References

No definition available.

+ Details

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X

- Definition

Amount of the hedged item as of the balance sheet date related to the derivative. For example, the hedged balance on a debt instrument.

+ References

No definition available.

+ Details

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- Definition

Fair value of the assets less the liabilities of a derivative or group of derivatives.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 45
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41271-113958

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 45
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41228-113958

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 10
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=77997519&loc=d3e13433-108611

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 15
-URI http://asc.fasb.org/extlink&oid=77997519&loc=d3e13495-108611

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X

- Definition

Fixed interest rate related to the interest rate derivative.

+ References

No definition available.

+ Details

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Period the derivative contract is outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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- Details

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- Details

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- Details

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- Details

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