ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (AOCI by Components) (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
May 31, 2018	May 31, 2017	May 31, 2018	May 31, 2017
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	$ (66,466)	$ (124,990)	$ (81,513)	$ (112,914)
Other comprehensive income before reclassifications	(26,418)	27,477	(11,609)	16,055
Amounts reclassified from AOCI	1,249	498	1,661	(155)
Income taxes	13	14	(161)	13
Other comprehensive income (loss)	(25,156)	27,989	(10,109)	15,913
Ending balance	(91,622)	(97,001)	(91,622)	(97,001)
Foreign Currency Translation
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	(66,000)	(124,235)	(80,778)	(112,255)
Other comprehensive income before reclassifications	(26,434)	27,109	(11,656)	15,129
Amounts reclassified from AOCI	1,328	968	1,328	968
Income taxes	0	0	0	0
Other comprehensive income (loss)	(25,106)	28,077	(10,328)	16,097
Ending balance	(91,106)	(96,158)	(91,106)	(96,158)
Unrealized Gain (Loss) on Derivatives
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	1,432	2,108	1,587	2,186
Other comprehensive income before reclassifications	16	368	47	926
Amounts reclassified from AOCI	(70)	(459)	(314)	(1,090)
Income taxes	11	12	69	7
Other comprehensive income (loss)	(43)	(79)	(198)	(157)
Ending balance	1,389	2,029	1,389	2,029
Defined Benefit Obligation
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	(1,898)	(2,863)	(2,322)	(2,845)
Other comprehensive income before reclassifications	0	0	0	0
Amounts reclassified from AOCI	(9)	(11)	647	(33)
Income taxes	2	2	(230)	6
Other comprehensive income (loss)	(7)	(9)	417	(27)
Ending balance	$ (1,905)	$ (2,872)	$ (1,905)	$ (2,872)

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.

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Amount before tax and reclassification adjustments of other comprehensive income (loss).

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Amount after tax and reclassification adjustments of other comprehensive income (loss).

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Amount of tax expense (benefit) allocated to other comprehensive income (loss).

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