Business Acquisitions (Additional Information) (Details 1) - USD ($) $ in Thousands			12 Months Ended
	Jul. 01, 2015	Aug. 28, 2014	Aug. 31, 2016	Aug. 31, 2015	Aug. 31, 2014
Business Acquisition [Line Items]
Goodwill			$ 135,107	$ 82,848
Loss on disposal of subsidiaries					$ 7,962
Customer Relationships | Maximum
Business Acquisition [Line Items]
Estimated useful life of intangible assets			15 years
Intellectual property [Member] | Maximum
Business Acquisition [Line Items]
Estimated useful life of intangible assets			8 years
DMS [Member]
Business Acquisition [Line Items]
Goodwill			$ 111,417	64,262
EMS [Member]
Business Acquisition [Line Items]
Goodwill			$ 23,690	18,586
Hanson [Member]
Business Acquisition [Line Items]
Date of acquisition			Jan. 13, 2016
Amount of cash paid for business acquisitions			$ 139,200
Real property			33,300
Assets acquired			406,400
Property, plant and equipment acquired			276,800
Intangible assets and goodwill acquired			129,600
Liabilities assumed			230,000
Deferred tax liabilities assumed			3,900
Transaction costs			3,100
Two Acquisitions (Inala & Shemer) Completed In Fiscal Year 2016 [Member]
Business Acquisition [Line Items]
Amount of cash paid for business acquisitions			72,300
Assets acquired			92,200
Intangible assets and goodwill acquired			31,400
Liabilities assumed			19,900
Transaction costs			1,100
Two Acquisitions (Inala & Shemer) Completed In Fiscal Year 2016 [Member] | DMS [Member]
Business Acquisition [Line Items]
Goodwill			$ 19,300
Plasticos [Member]
Business Acquisition [Line Items]
Date of acquisition	Jul. 01, 2015
Amount of cash paid for business acquisitions	$ 111,000
Assets acquired				168,500
Goodwill				41,700
Intangible asset acquired				32,100
Liabilities assumed				49,700
Percentage of equity interest acquired	100.00%
Step acquisition gain				6,200
Previously held equity interest				1,600
Plasticos [Member] | Customer Relationships
Business Acquisition [Line Items]
Intangible asset acquired				$ 24,400
Estimated useful life of intangible assets				10 years
Plasticos [Member] | Intellectual property [Member]
Business Acquisition [Line Items]
Intangible asset acquired				$ 6,500
Estimated useful life of intangible assets				5 years
Plasticos [Member] | Definite-lived trade name [Member]
Business Acquisition [Line Items]
Intangible asset acquired				$ 1,200
Five Additional Acquisitions [Member]
Business Acquisition [Line Items]
Amount of cash paid for business acquisitions				117,000
Assets acquired				167,800
Goodwill				42,400
Intangible asset acquired				31,700
Liabilities assumed				$ 50,800
Two Nypro Subsidiaries
Business Acquisition [Line Items]
Sale of controlling financial interest		$ 5,200
Loss on disposal of subsidiaries					$ (8,000)