Significant Components and Activity in Restructuring Plan (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended
	May 31, 2013	May 31, 2013
Restructuring Cost and Reserve [Line Items]
Restructuring Related Charges	$ 28,392	$ 28,392
2013 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Liability, Beginning Balance	0	0
Restructuring Related Charges	28,392	28,392
Asset Write off Charge and Other Non- Cash Activity	(5,857)	(5,857)
Cash Payments	(12,161)	(12,161)
Liability, Ending Balance	10,374	10,374
2013 Restructuring Plan | Employee Severance
Restructuring Cost and Reserve [Line Items]
Liability, Beginning Balance	0	0
Restructuring Related Charges	22,719	22,719
Asset Write off Charge and Other Non- Cash Activity	(246)	(246)
Cash Payments	(12,143)	(12,143)
Liability, Ending Balance	10,330	10,330
2013 Restructuring Plan | Other Restructuring
Restructuring Cost and Reserve [Line Items]
Liability, Beginning Balance	0	0
Restructuring Related Charges	5,673	5,673
Asset Write off Charge and Other Non- Cash Activity	(5,611)	(5,611)
Cash Payments	(18)	(18)
Liability, Ending Balance	$ 44	$ 44