SCHEDULE II — VALUATION AND QUALIFYING ACCOUNTS AND RESERVES (Details) - USD ($) $ in Thousands		12 Months Ended
		Aug. 31, 2017	Aug. 31, 2016	Aug. 31, 2015
Allowance for doubtful accounts
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period		$ 6,427	$ 9,033	$ 5,908
Additions, Charged to Cost and Expense		7,108	6,878	4,142
Additions, Charged to Other Accounts	[1]	1,074	1,007	306
Deductions, Charged to Cost and Expense		(1,059)	0	(661)
Deductions, Charged to Other Accounts	[2]	(4,885)	(10,491)	(662)
Balance at End of Period		8,665	6,427	9,033
Deferred tax valuation allowance
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period		153,011	79,965	69,762
Additions, Charged to Cost and Expense		127,660	74,114	17,746
Additions, Charged to Other Accounts
Deductions, Charged to Cost and Expense		(6,680)	(1,068)	(7,543)
Deductions, Charged to Other Accounts
Balance at End of Period		$ 273,991	$ 153,011	$ 79,965

[1] Recoveries and translation adjustments.

[2] Uncollectable accounts charged to the allowance. For the years ended August 31, 2017, 2016 and 2015, $(1,841), $(1,401) and $(1,695) were reclassified to the fair value of the deferred purchase price under our sale of accounts receivables program, respectively.