Restructuring and Related Charges (Additional Information) (Details 2) - USD ($) $ in Thousands		12 Months Ended
		Aug. 31, 2017		Aug. 31, 2016		Aug. 31, 2015
Restructuring Cost and Reserve [Line Items]
Restructuring and related charges		$ 160,395	[1],[2]	$ 11,369	[1],[3],[4]	$ 33,066
Total pre-tax restructuring and other related costs expected to be recognized		195,000
Restructuring related charges to date		322,259
Liability		38,388	[5]	18,027	[4]	30,957	[4]
2017 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Restructuring related charges to date	[6]	154,231
Liability		30,900
2013 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Restructuring and related charges	[3]					34,559
Restructuring related charges to date	[7]	168,028
Liability		7,500
EMS [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related charges		51,300		10,700		32,000
EMS [Member] | 2017 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Restructuring related charges to date		45,100
EMS [Member] | 2013 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Restructuring related charges to date		130,300
DMS [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related charges		82,400		800		400
DMS [Member] | 2017 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Restructuring related charges to date		82,400
DMS [Member] | 2013 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Restructuring related charges to date		28,800
Non-allocated charges
Restructuring Cost and Reserve [Line Items]
Restructuring and related charges		26,700				2,200
Restructuring and related charges reversal				(100)
Non-allocated charges | 2017 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Restructuring related charges to date		26,700
Non-allocated charges | 2013 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Restructuring related charges to date		8,900
Employee severance and benefit costs
Restructuring Cost and Reserve [Line Items]
Restructuring and related charges		56,834	[2]	8,845	[3],[4]	24,327	[3]
Restructuring related charges to date		189,335
Liability		33,580	[5]	17,266	[4]	30,047	[4]
Employee severance and benefit costs | 2017 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Restructuring and related charges		52,200
Restructuring related charges to date	[6]	52,197
Employee severance and benefit costs | 2013 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Restructuring and related charges		4,600
Restructuring related charges to date	[7]	137,138
Lease costs
Restructuring Cost and Reserve [Line Items]
Restructuring and related charges		3,966	[2]			2,777	[3]
Restructuring and related charges reversal	[3]			(43)
Restructuring related charges to date		7,450
Liability		1,665	[5]	21	[4]	64	[4]
Lease costs | 2017 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Restructuring and related charges		4,000
Restructuring related charges to date	[6]	3,966
Lease costs | 2013 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Restructuring and related charges		0
Restructuring related charges to date	[7]	3,484
Asset write-off costs
Restructuring Cost and Reserve [Line Items]
Restructuring and related charges		94,346	[2]	1,170	[3],[4]	5,565	[3]
Restructuring related charges to date		115,661
Asset write-off costs | 2017 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Restructuring and related charges		94,200
Restructuring related charges to date	[6]	94,276
Asset write-off costs | 2013 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Restructuring and related charges		100
Restructuring related charges to date	[7]	21,385
Other related costs
Restructuring Cost and Reserve [Line Items]
Restructuring and related charges		5,249	[2]	1,397	[3]	$ 1,890	[3]
Restructuring related charges to date		9,813
Other related costs | 2017 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Restructuring and related charges		3,800
Restructuring related charges to date	[6]	3,792
Other related costs | 2013 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Restructuring and related charges		1,500		$ 1,397
Restructuring related charges to date	[7]	$ 6,021

[1] ^{(1 )} Includes $ 51.3 million , $ 10.7 million and $ 32.0 million recorded in the EMS segment, $ 82.4 million , $ 0.8 million and $ 0.4 million recorded in the DMS segment and $ 26.7 million , $ (0.1) million and $ 2.2 million of non-allocated charges for the fiscal years ended August 31, 2017 , 2016 and 2015 , respectively. Except for asset write-off costs, all restructuring and related charge s are cash costs.

[2] ⁽²⁾ Includes employee severance and benefit costs of $ 52.2 million and $ 4.6 million , lease costs of $ 4.0 million and $ 0.0 million , asset write-off costs of $ 94.2 million and $ 0.1 million and other related costs of $ 3.8 million and $ 1.5 million for the 2017 Re structuring Plan and the 2013 Restructuring Plan, respectively.

[3] ⁽³⁾ Costs relate to the 2013 Restructuring Plan.

[4] ^{(1 )} Relates only to the 2013 Restructuring Plan.

[5] ^{( 2 )} The liability as of August 31, 2017 includes $ 30.9 million and $ 7.5 million related to the 2017 Restructuring Plan and the 2013 Restructuring Plan, respectively.

[6] (1) Includes $45.1 million allocated to the EMS segment, $82.4 million allocated to the DMS segment and $26.7 million of unallocated costs.

[7] (2) Includes $130.3 million allocated to the EMS segment, $28.8 million allocated to the DMS segment and $8.9 million of unallocated costs.