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QUARTERLY CONSOLIDATED FINANCIAL INFORMATION (UNAUDITED) - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	May 31, 2015	Aug. 31, 2014	May 31, 2015	Mar. 25, 2015
Interim Period, Costs Not Allocable [Line Items]
Severance costs			$ 6.3
Tax adjustments related to immaterial correction of deferred tax assets	$ 14.3	$ 6.8
Realex Payments
Interim Period, Costs Not Allocable [Line Items]
Business acquisition, transaction costs	1.2		1.2	$ 1.2
Interest and Other Expense
Interim Period, Costs Not Allocable [Line Items]
Unrecognized tax benefits, interest on income taxes	$ 3.6		$ 3.6

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Amount of direct costs of the business combination including legal, accounting, and other costs incurred to consummate the business acquisition.

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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SAB TOPIC 5.P.4(b))
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-Name Accounting Standards Codification
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Amount of increase (decrease) to previously recorded tax expense. Includes, but is not limited to, significant settlements of income tax disputes, and unusual tax positions or infrequent actions taken by the entity, including tax assessment reversal, and IRS tax settlement.

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