Goodwill and Other Intangible Assets (Details 1) - USD ($) $ in Thousands	12 Months Ended
	Aug. 31, 2015	Aug. 31, 2014
Goodwill [Line Items]
Gross, Beginning balance	$ 1,403,466	$ 1,368,833
Accumulated Impairment, Beginning balance	(1,019,822)	(1,019,822)
Acquisitions & Adjustments	82,848	34,696
Foreign Currency Impact	(4,110)	(63)
Gross, Ending balance	1,482,204	1,403,466
Accumulated Impairment, Ending balance	(1,019,822)	(1,019,822)
Net Balance	462,382	383,644
EMS [Member]
Goodwill [Line Items]
Gross, Beginning balance	474,305	474,400
Accumulated Impairment, Beginning balance	(464,053)	(464,053)
Acquisitions & Adjustments	18,586
Foreign Currency Impact	(965)	(95)
Gross, Ending balance	491,926	474,305
Accumulated Impairment, Ending balance	(464,053)	(464,053)
Net Balance	27,873	10,252
DMS [Member]
Goodwill [Line Items]
Gross, Beginning balance	929,161	894,433
Accumulated Impairment, Beginning balance	(555,769)	(555,769)
Acquisitions & Adjustments	64,262	34,696
Foreign Currency Impact	(3,145)	32
Gross, Ending balance	990,278	929,161
Accumulated Impairment, Ending balance	(555,769)	(555,769)
Net Balance	$ 434,509	$ 373,392