ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (AOCI by Components) (Details) - USD ($) $ in Thousands	12 Months Ended
	Aug. 31, 2021	Aug. 31, 2020	Aug. 31, 2019
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance	$ (103,764)	$ (124,126)	$ (93,677)
Other comprehensive loss before reclassifications	29,008	17,624	(33,071)
Reclassification for (gain) loss	(2,826)	(369)	2,222
Income tax benefit	(7,238)	3,107	400
Other comprehensive income (loss)	18,944	20,362	(30,449)
Balance	(84,820)	(103,764)	(124,126)
Foreign Currency Translation
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance	(87,933)	(121,498)	(92,637)
Other comprehensive loss before reclassifications	(17,747)	33,559	(29,718)
Reclassification for (gain) loss	0	6	857
Income tax benefit	0	0	0
Other comprehensive income (loss)	(17,747)	33,565	(28,861)
Balance	(105,680)	(87,933)	(121,498)
Unrealized Gain (Loss) on Derivatives
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance	(11,334)	1,106	1,356
Other comprehensive loss before reclassifications	42,233	(14,983)	(7)
Reclassification for (gain) loss	(2,826)	(375)	(301)
Income tax benefit	(6,292)	2,918	58
Other comprehensive income (loss)	33,115	(12,440)	(250)
Balance	21,781	(11,334)	1,106
Defined Benefit Obligation
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance	(4,497)	(3,734)	(2,396)
Other comprehensive loss before reclassifications	4,522	(952)	(3,346)
Reclassification for (gain) loss	0	0	1,666
Income tax benefit	(946)	189	342
Other comprehensive income (loss)	3,576	(763)	(1,338)
Balance	$ (921)	$ (4,497)	$ (3,734)