INCOME TAXES (Significant Components of Income Tax Provision) (Details) - USD ($) $ in Thousands	12 Months Ended
	Aug. 31, 2018	Aug. 31, 2017	Aug. 31, 2016
Current:
U.S.	$ 10,827	$ 12,185	$ 9,269
Foreign	30,389	32,680	30,705
Total	41,216	44,865	39,974
Deferred:
U.S.	8,225	(2,584)	832
Foreign	3,516	(1,750)	(82)
Valuation allowance change	(4,780)	1,487	2,125
Total	6,961	(2,847)	2,875
Provision for income taxes	$ 48,177	$ 42,018	$ 42,849