Goodwill and Other Intangible Assets Intangibles (Details) - USD ($) $ in Thousands	3 Months Ended
	Nov. 30, 2016	Nov. 30, 2015	Aug. 31, 2016
Finite-Lived Intangible Assets [Line Items]
Amortization of Intangible Assets	$ 1,300	$ 1,700
Other Intangible Assets [Member] | Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	2 years
Other Intangible Assets [Member] | Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	30 years
Customer Lists [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Carrying Amount	$ 48,818		$ 51,554
Finite-Lived Intangible Assets, Accumulated Amortization	(13,039)		(15,550)
Finite-Lived Intangible Assets, Net	35,779		36,004
Trademarks and other intangible assets [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Carrying Amount	31,567		35,015
Finite-Lived Intangible Assets, Accumulated Amortization	(23,869)		(26,253)
Finite-Lived Intangible Assets, Net	7,698		8,762
Total intangible assets [Domain]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Carrying Amount	80,385		86,569
Finite-Lived Intangible Assets, Accumulated Amortization	(36,908)		(41,803)
Finite-Lived Intangible Assets, Net	$ 43,477		$ 44,766