ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (AOCI by Components) (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
May 31, 2020	May 31, 2019	May 31, 2020	May 31, 2019
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	$ (121,390)	$ (100,887)	$ (124,126)	$ (93,677)
Other comprehensive income before reclassifications	(14,397)	(5,227)	(12,182)	(14,493)
Amounts reclassified from AOCI	(96)	(162)	(312)	2,192
Income taxes	1,226	51	1,963	(247)
Other comprehensive income (loss)	(13,267)	(5,338)	(10,531)	(12,548)
Ending balance	(134,657)	(106,225)	(134,657)	(106,225)
Foreign Currency Translation
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	(115,642)	(100,943)	(121,498)	(92,637)
Other comprehensive income before reclassifications	(8,037)	(5,135)	(2,179)	(14,278)
Amounts reclassified from AOCI	2	19	0	856
Income taxes	0	0	0	0
Other comprehensive income (loss)	(8,035)	(5,116)	(2,179)	(13,422)
Ending balance	(123,677)	(106,059)	(123,677)	(106,059)
Unrealized Gain (Loss) on Derivatives
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	(1,998)	1,151	1,106	1,356
Other comprehensive income before reclassifications	(6,350)	(86)	(9,969)	(190)
Amounts reclassified from AOCI	(98)	(181)	(312)	(330)
Income taxes	1,224	51	1,953	99
Other comprehensive income (loss)	(5,224)	(216)	(8,328)	(421)
Ending balance	(7,222)	935	(7,222)	935
Defined Benefit Obligation
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	(3,750)	(1,095)	(3,734)	(2,396)
Other comprehensive income before reclassifications	(10)	(6)	(34)	(25)
Amounts reclassified from AOCI	0	0	0	1,666
Income taxes	2	0	10	(346)
Other comprehensive income (loss)	(8)	(6)	(24)	1,295
Ending balance	$ (3,758)	$ (1,101)	$ (3,758)	$ (1,101)

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

No definition available.

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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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