CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Feb. 29, 2016	Feb. 28, 2015	Feb. 29, 2016	Feb. 28, 2015
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME [Abstract]
Net income		$ 25,942	$ 24,835	$ 49,614	$ 45,482
Other Comprehensive Income, net of tax:
Foreign currency translation adjustments	[1]	(10,420)	(10,906)	(10,892)	(22,557)
Defined benefit pension plan:
Amortization of prior service cost and actuarial gains included in net periodic pensions cost		(4)	(13)	(8)	(24)
Total defined benefit pension plan		(4)	(13)	(8)	(24)
Dreivative instruments:
Unrealized gains/(losses) on change in fair value of interest rate swaps	[2]	(211)	1,225	(331)	3,468
Total derivative instruments	[2]	(211)	1,225	(331)	3,468
Other comprehensive income (loss)		(10,635)	(9,694)	(11,231)	(19,113)
Comprehensive income		$ 15,307	$ 15,141	$ 38,383	$ 26,369

[1] Translation adjustments arising in translating the financial statements of a foreign entity have no effect on the income taxes of that foreign entity. They may, however, affect: (a) the amount, measured in the parent entity's reporting currency, of withholding taxes assessed on dividends paid to the parent entity and (b) the amount of taxes assessed on the parent entity by the government of its country. The Company has determined that the reinvestment of earnings of its foreign subsidiaries are indefinite because of the long-term nature of the Company's foreign investment plans. Therefore, deferred taxes are not provided for on translation adjustments related to non-remitted earnings of the Company's foreign subsidiaries.

[2] See Note 9 - Derivative Instruments and Hedging Activities.