ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (AOCI by Components) (Details) - USD ($) $ in Thousands	3 Months Ended
	Nov. 30, 2020	Nov. 30, 2019
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	$ (103,764)	$ (124,126)
Other comprehensive income before reclassifications	(6,971)	7,796
Amounts reclassified from AOCI	(67)	(110)
Income taxes	(253)	(145)
Other comprehensive income (loss)	(7,291)	7,541
Ending balance	(111,055)	(116,585)
Foreign Currency Translation
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	(87,933)	(121,498)
Other comprehensive income before reclassifications	(8,388)	6,924
Amounts reclassified from AOCI	0	0
Income taxes	0	0
Other comprehensive income (loss)	(8,388)	6,924
Ending balance	(96,321)	(114,574)
Unrealized Gain (Loss) on Derivatives
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	(11,334)	1,106
Other comprehensive income before reclassifications	1,437	882
Amounts reclassified from AOCI	(67)	(110)
Income taxes	(260)	(147)
Other comprehensive income (loss)	1,110	625
Ending balance	(10,224)	1,731
Defined Benefit Obligation
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	(4,497)	(3,734)
Other comprehensive income before reclassifications	(20)	(10)
Amounts reclassified from AOCI	0	0
Income taxes	7	2
Other comprehensive income (loss)	(13)	(8)
Ending balance	$ (4,510)	$ (3,742)