INCOME TAXES (Significant Components of Income Tax Provision) (Details) - USD ($) $ in Thousands	12 Months Ended
	Aug. 31, 2017	Aug. 31, 2016	Aug. 31, 2015
Current:
U.S.	$ 12,185	$ 9,269	$ 10,918
Foreign	32,680	30,705	33,676
Total	44,865	39,974	44,594
Deferred:
U.S.	(2,584)	832	3,941
Foreign	(1,750)	(82)	(3,100)
Valuation allowance charge	1,487	2,125	2,131
Total	(2,847)	2,875	2,972
Provision for income taxes	$ 42,018	$ 42,849	$ 47,566