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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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