Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130543-203045

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130539-203045

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130545-203045

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

Revenue - Revenues Disaggregated by Segment (Details) - USD ($) $ in Thousands	3 Months Ended
	Nov. 30, 2018	Nov. 30, 2017
Disaggregation of Revenue [Line Items]
Net revenue	$ 6,506,275	$ 5,585,532
Point in time
Disaggregation of Revenue [Line Items]
Net revenue	2,522,312
Over time
Disaggregation of Revenue [Line Items]
Net revenue	3,983,963
EMS
Disaggregation of Revenue [Line Items]
Net revenue	3,503,103
EMS \| Point in time
Disaggregation of Revenue [Line Items]
Net revenue	420,661
EMS \| Over time
Disaggregation of Revenue [Line Items]
Net revenue	3,082,442
DMS
Disaggregation of Revenue [Line Items]
Net revenue	3,003,172
DMS \| Point in time
Disaggregation of Revenue [Line Items]
Net revenue	2,101,651
DMS \| Over time
Disaggregation of Revenue [Line Items]
Net revenue	$ 901,521