ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (AOCI by Components) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Aug. 31, 2014	Aug. 31, 2013	Aug. 31, 2012
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance	$ (27,176)	$ (18,136)	$ 59,473
Other comprehensive income (loss) before reclassifications	5,249	(8,740)	(73,586)
Amounts reclassified from AOCI	2,418	(300)	(4,023)
Other comprehensive income (loss)	7,667	(9,040)	(77,609)
Balance	(19,509)	(27,176)	(18,136)
Foreign Currency Translation
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance	(27,477)	(17,369)	58,937
Other comprehensive income (loss) before reclassifications	7,586	(10,108)	(71,631)
Amounts reclassified from AOCI	0	0	(4,675)
Other comprehensive income (loss)	7,586	(10,108)	(76,306)
Balance	(19,891)	(27,477)	(17,369)
Unrealized Gain (Loss) on Derivatives
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance	3,594	3,710	4,677
Other comprehensive income (loss) before reclassifications	(1,848)	221	(1,545)
Amounts reclassified from AOCI	1,268	(337)	578
Other comprehensive income (loss)	(580)	(116)	(967)
Balance	3,014	3,594	3,710
Defined Benefit Obligation
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance	(3,293)	(4,477)	(4,141)
Other comprehensive income (loss) before reclassifications	(489)	1,147	(410)
Amounts reclassified from AOCI	1,150	37	74
Other comprehensive income (loss)	661	1,184	(336)
Balance	$ (2,632)	$ (3,293)	$ (4,477)