ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (AOCI by Components) (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Feb. 28, 2019	Feb. 28, 2018	Feb. 28, 2019	Feb. 28, 2018
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	$ (102,201)	$ (78,342)	$ (93,677)	$ (81,513)
Other comprehensive income before reclassifications	454	11,961	(9,266)	14,809
Amounts reclassified from AOCI	829	(106)	2,354	413
Income taxes	31	21	(298)	(175)
Other comprehensive income (loss)	1,314	11,876	(7,210)	15,047
Ending balance	(100,887)	(66,466)	(100,887)	(66,466)
Foreign Currency Translation
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	(102,393)	(77,943)	(92,637)	(80,778)
Other comprehensive income before reclassifications	514	11,943	(9,143)	14,778
Amounts reclassified from AOCI	936	0	837	0
Income taxes	0	0	0	0
Other comprehensive income (loss)	1,450	11,943	(8,306)	14,778
Ending balance	(100,943)	(66,000)	(100,943)	(66,000)
Unrealized Gain (Loss) on Derivatives
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	1,279	1,492	1,356	1,587
Other comprehensive income before reclassifications	(52)	18	(104)	31
Amounts reclassified from AOCI	(107)	(97)	(149)	(243)
Income taxes	31	19	48	57
Other comprehensive income (loss)	(128)	(60)	(205)	(155)
Ending balance	1,151	1,432	1,151	1,432
Defined Benefit Obligation
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	(1,087)	(1,891)	(2,396)	(2,322)
Other comprehensive income before reclassifications	(8)	0	(19)	0
Amounts reclassified from AOCI	0	(9)	1,666	656
Income taxes	0	2	(346)	(232)
Other comprehensive income (loss)	(8)	(7)	1,301	424
Ending balance	$ (1,095)	$ (1,898)	$ (1,095)	$ (1,898)

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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