Restructuring and Related Charges - Restructuring and Related Costs (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	May 31, 2018	May 31, 2017	May 31, 2018	May 31, 2017
Restructuring Cost and Reserve [Line Items]
Restructuring and related charges	$ 12,647	$ 32,700	$ 29,462	$ 113,529
Employee severance and benefit costs
Restructuring Cost and Reserve [Line Items]
Restructuring and related charges	5,058	18,171	11,048	46,654
Lease costs
Restructuring Cost and Reserve [Line Items]
Restructuring and related charges	1,589	1,151	1,596	5,600
Asset write-off costs
Restructuring Cost and Reserve [Line Items]
Restructuring and related charges	5,575	11,838	14,838	58,613
Other related costs
Restructuring Cost and Reserve [Line Items]
Restructuring and related charges	425	1,540	1,980	2,662
EMS
Restructuring Cost and Reserve [Line Items]
Restructuring and related charges	4,600	12,400	12,600	23,800
DMS
Restructuring Cost and Reserve [Line Items]
Restructuring and related charges	5,800	17,800	13,800	65,800
Non-allocated charges
Restructuring Cost and Reserve [Line Items]
Restructuring and related charges	$ 2,200	$ 2,500	$ 3,100	$ 23,900