Other Assets Schedule of Intangible Assets (Details) - USD ($) $ in Thousands	Aug. 31, 2016	Aug. 31, 2015
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	$ 86,569	$ 113,613
Finite-Lived Intangible Assets, Accumulated Amortization	(41,803)	(62,965)
Customer lists, trademarks and other intangible assets	44,766	50,648
Customer lists
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	51,554	70,925
Finite-Lived Intangible Assets, Accumulated Amortization	(15,550)	(30,831)
Customer lists, trademarks and other intangible assets	36,004	40,094
Trademarks and other intangible assets [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	35,015	42,688
Finite-Lived Intangible Assets, Accumulated Amortization	(26,253)	(32,134)
Customer lists, trademarks and other intangible assets	$ 8,762	$ 10,554