ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (AOCI by Components) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	May 31, 2017	May 31, 2016	May 31, 2017	May 31, 2016
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	$ (124,990)	$ (131,011)	$ (112,914)	$ (113,535)
Other comprehensive income before reclassifications	27,477	3,801	16,055	(13,424)
Amounts reclassified from AOCI	498	19	(155)	(236)
Income taxes	14	11	13	15
Other comprehensive income (loss)	27,989	3,831	15,913	(13,645)
Ending balance	(97,001)	(127,180)	(97,001)	(127,180)
Foreign Currency Translation
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	(124,235)	(130,865)	(112,255)	(113,081)
Other comprehensive income before reclassifications	27,109	3,817	15,129	(13,967)
Amounts reclassified from AOCI	968	0	968	0
Income taxes	0	0	0	0
Other comprehensive income (loss)	28,077	3,817	16,097	(13,967)
Ending balance	(96,158)	(127,048)	(96,158)	(127,048)
Unrealized Gain (Loss) on Derivatives
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	2,108	2,616	2,186	2,305
Other comprehensive income before reclassifications	368	(16)	926	543
Amounts reclassified from AOCI	(459)	21	(1,090)	(230)
Income taxes	12	11	7	14
Other comprehensive income (loss)	(79)	16	(157)	327
Ending balance	2,029	2,632	2,029	2,632
Defined Benefit Obligation
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	(2,863)	(2,762)	(2,845)	(2,759)
Other comprehensive income before reclassifications	0	0	0	0
Amounts reclassified from AOCI	(11)	(2)	(33)	(6)
Income taxes	2	0	6	1
Other comprehensive income (loss)	(9)	(2)	(27)	(5)
Ending balance	$ (2,872)	$ (2,764)	$ (2,872)	$ (2,764)