Concentration of Risk and Segment Data (Segment Revenue) (Details 2) - USD ($) $ in Thousands	3 Months Ended
Nov. 30, 2016	Nov. 30, 2015
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenue	$ 5,104,898	$ 5,207,977
EMS [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenue	2,703,290	2,724,414
DMS [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenue	$ 2,401,608	$ 2,483,563

Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1)
-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

Name:	us-gaap_SalesRevenueNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration