Significant Components and Activity in Restructuring Plan (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Aug. 31, 2013	Aug. 31, 2011
Restructuring Cost and Reserve [Line Items]
Restructuring Related Charges	$ 89,453	$ 628
2013 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Liability, Beginning Balance	0
Restructuring Related Charges	89,453
Asset Write off Charge and Other Non- Cash Activity	(8,866)
Cash Payments	(22,677)
Liability, Ending Balance	57,910
2013 Restructuring Plan | Employee Severance
Restructuring Cost and Reserve [Line Items]
Liability, Beginning Balance	0
Restructuring Related Charges	80,331
Asset Write off Charge and Other Non- Cash Activity	(525)
Cash Payments	(22,183)
Liability, Ending Balance	57,623
2013 Restructuring Plan | Lease Costs
Restructuring Cost and Reserve [Line Items]
Liability, Beginning Balance	0
Restructuring Related Charges	506
Cash Payments	(255)
Liability, Ending Balance	251
2013 Restructuring Plan | Asset Write Off Costs
Restructuring Cost and Reserve [Line Items]
Liability, Beginning Balance	0
Restructuring Related Charges	8,341
Asset Write off Charge and Other Non- Cash Activity	(8,341)
2013 Restructuring Plan | Other Restructuring
Restructuring Cost and Reserve [Line Items]
Liability, Beginning Balance	0
Restructuring Related Charges	275
Cash Payments	(239)
Liability, Ending Balance	$ 36