Significant Components and Activity in Restructuring Plan (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	May 31, 2014	May 31, 2013	May 31, 2014	May 31, 2013
Restructuring Cost and Reserve [Line Items]
Restructuring Related Charges	$ 12,446	$ 23,182	$ 65,652	$ 23,182
2014 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Liability, Beginning Balance	6,134		0
Restructuring Related Charges	(168)		42,320
Asset Write off Charge and Other Non- Cash Activity	19		(22,829)
Cash Payments	(5,241)		(18,747)
Liability, Ending Balance	744		744
2014 Restructuring Plan | Employee Severance
Restructuring Cost and Reserve [Line Items]
Liability, Beginning Balance	3,417		0
Restructuring Related Charges	(23)		16,350
Asset Write off Charge and Other Non- Cash Activity	(51)		12
Cash Payments	(2,621)		(15,640)
Liability, Ending Balance	722		722
2014 Restructuring Plan | Lease Costs
Restructuring Cost and Reserve [Line Items]
Liability, Beginning Balance	1,381		0
Restructuring Related Charges			1,738
Asset Write off Charge and Other Non- Cash Activity	(116)		(116)
Cash Payments	(1,265)		(1,622)
Liability, Ending Balance	0		0
2014 Restructuring Plan | Asset Write Off Cost
Restructuring Cost and Reserve [Line Items]
Liability, Beginning Balance	0		0
Restructuring Related Charges	(159)		22,725
Asset Write off Charge and Other Non- Cash Activity	159		(22,725)
Liability, Ending Balance	0		0
2014 Restructuring Plan | Other Related Costs
Restructuring Cost and Reserve [Line Items]
Liability, Beginning Balance	1,336		0
Restructuring Related Charges	14		1,507
Asset Write off Charge and Other Non- Cash Activity	27
Cash Payments	(1,355)		(1,485)
Liability, Ending Balance	22		22
2013 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Liability, Beginning Balance	54,025	0	55,439	0
Restructuring Related Charges	12,614	23,182	23,332	23,182
Asset Write off Charge and Other Non- Cash Activity	(5,702)	(5,691)	(5,785)	(5,691)
Cash Payments	(10,862)	(10,275)	(22,911)	(10,275)
Liability, Ending Balance	50,075	7,216	50,075	7,216
2013 Restructuring Plan | Employee Severance
Restructuring Cost and Reserve [Line Items]
Liability, Beginning Balance	53,597	0	55,188	0
Restructuring Related Charges	6,844	17,571	14,529	17,571
Asset Write off Charge and Other Non- Cash Activity	(446)	(80)	1,484	(80)
Cash Payments	(10,301)	(10,275)	(21,507)	(10,275)
Liability, Ending Balance	49,694	7,216	49,694	7,216
2013 Restructuring Plan | Lease Costs
Restructuring Cost and Reserve [Line Items]
Liability, Beginning Balance	362		251
Restructuring Related Charges			387
Cash Payments	(346)		(622)
Liability, Ending Balance	16		16
2013 Restructuring Plan | Asset Write Off Cost
Restructuring Cost and Reserve [Line Items]
Liability, Beginning Balance	0	0	0	0
Restructuring Related Charges	5,277	5,611	7,290	5,611
Asset Write off Charge and Other Non- Cash Activity	(5,277)	(5,611)	(7,290)	(5,611)
Liability, Ending Balance	0	0	0	0
2013 Restructuring Plan | Other Related Costs
Restructuring Cost and Reserve [Line Items]
Liability, Beginning Balance	66		0
Restructuring Related Charges	493		1,126
Asset Write off Charge and Other Non- Cash Activity	21		21
Cash Payments	(215)		(782)
Liability, Ending Balance	$ 365		$ 365