Restructuring Charges and Other Exit-Related Costs Restructuring Reserve Rollforward (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	May 31, 2016	May 31, 2015	May 31, 2016	May 31, 2015
Restructuring Reserve [Roll Forward]
Charges	$ 442	$ 7,280	$ 5,570	$ 9,922
Total charges to date	21,954		21,954
Total expected charges	22,399		22,399
All Other Plans
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance			362
Charges	76	21	201	1,951
Payments and Other			(515)
Restructuring reserve, ending balance	48		48
Total charges to date	7,962		7,962
Total expected charges	7,991		7,991
Q2’15 Plan
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance			2,546
Charges	366	7,259	5,369	7,971
Payments and Other			(5,605)
Restructuring reserve, ending balance	2,310		2,310
Total charges to date	13,992		13,992
Total expected charges	14,408		14,408
Severance costs
Restructuring Reserve [Roll Forward]
Charges	340	4,035	4,686	4,973
Total charges to date	14,922		14,922
Total expected charges	14,977		14,977
Severance costs | All Other Plans
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance			0
Charges	0	(5)	0	393
Payments and Other			0
Restructuring reserve, ending balance	0		0
Severance costs | Q2’15 Plan
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance			1,226
Charges	340	4,040	4,686	4,580
Payments and Other			(4,819)
Restructuring reserve, ending balance	1,093		1,093
Contract termination costs
Restructuring Reserve [Roll Forward]
Charges	102	1,636	884	2,024
Total charges to date	3,350		3,350
Total expected charges	3,668		3,668
Contract termination costs | All Other Plans
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance			362
Charges	76	26	201	335
Payments and Other			(515)
Restructuring reserve, ending balance	48		48
Contract termination costs | Q2’15 Plan
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance			1,320
Charges	26	1,610	683	1,689
Payments and Other			(786)
Restructuring reserve, ending balance	1,217		1,217
Other restructuring costs
Restructuring Reserve [Roll Forward]
Charges	0	1,609	0	2,925
Total charges to date	3,682		3,682
Total expected charges	3,754		3,754
Other restructuring costs | All Other Plans
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance			0
Charges	0	0	0	1,223
Payments and Other			0
Restructuring reserve, ending balance	0		0
Other restructuring costs | Q2’15 Plan
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance			0
Charges	0	$ 1,609	0	$ 1,702
Payments and Other			0
Restructuring reserve, ending balance	$ 0		$ 0