Restructuring and Related Charges (Significant Components and Activity) (Details 2) - USD ($)	3 Months Ended		6 Months Ended
	Feb. 28, 2017	Feb. 29, 2016	Feb. 28, 2017	Feb. 29, 2016
Restructuring Cost and Reserve [Line Items]
Restructuring Related Charges	$ 44,927,000	$ 2,535,000	$ 80,829,000	$ 3,888,000
2013 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Liability, Beginning Balance	15,945,000	21,695,000	18,027,000	30,957,000
Restructuring Related Charges	1,510,000	2,535,000	3,350,000	3,888,000
Asset Write off Charge and Other Non- Cash Activity	(126,000)	613,000	(827,000)	(832,000)
Cash Payments	(4,723,000)	(5,793,000)	(7,944,000)	(14,963,000)
Liability, Ending Balance	12,606,000	19,050,000	12,606,000	19,050,000
2017 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Liability, Beginning Balance	12,507,000
Restructuring Related Charges	43,417,000		77,479,000
Asset Write off Charge and Other Non- Cash Activity	(34,050,000)		(46,705,000)
Cash Payments	(7,915,000)		(16,815,000)
Liability, Ending Balance	13,959,000		13,959,000
Employee Severance | 2013 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Liability, Beginning Balance	15,204,000	20,775,000	17,266,000	30,047,000
Restructuring Related Charges	1,007,000	2,467,000	2,497,000	3,545,000
Asset Write off Charge and Other Non- Cash Activity	(53,000)	586,000	(722,000)	(810,000)
Cash Payments	(4,402,000)	(5,713,000)	(7,285,000)	(14,667,000)
Liability, Ending Balance	11,756,000	18,115,000	11,756,000	18,115,000
Employee Severance | 2017 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Liability, Beginning Balance	9,894,000
Restructuring Related Charges	8,090,000		25,986,000
Asset Write off Charge and Other Non- Cash Activity	15,000
Cash Payments	(7,662,000)		(15,649,000)
Liability, Ending Balance	10,337,000		10,337,000
Lease Costs | 2013 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Liability, Beginning Balance	21,000	64,000	21,000	64,000
Restructuring Related Charges				0
Asset Write off Charge and Other Non- Cash Activity				0
Cash Payments				0
Liability, Ending Balance	21,000	64,000	21,000	64,000
Lease Costs | 2017 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Liability, Beginning Balance	2,524,000
Restructuring Related Charges	1,158,000		4,449,000
Cash Payments	(110,000)		(877,000)
Liability, Ending Balance	3,572,000		3,572,000
Asset Write-Off Cost | 2013 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Liability, Beginning Balance	0		0	0
Restructuring Related Charges	70,000		70,000
Asset Write off Charge and Other Non- Cash Activity	(70,000)		(70,000)
Liability, Ending Balance	0		0
Asset Write-Off Cost | 2017 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Restructuring Related Charges	34,065,000		46,705,000
Asset Write off Charge and Other Non- Cash Activity	(34,065,000)		(46,705,000)
Other Related Costs | 2013 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Liability, Beginning Balance	720,000	856,000	740,000	846,000
Restructuring Related Charges	433,000	68,000	783,000	343,000
Asset Write off Charge and Other Non- Cash Activity	(3,000)	27,000	(35,000)	22,000
Cash Payments	(321,000)	(80,000)	(659,000)	296,000
Liability, Ending Balance	829,000	$ 871,000	829,000	$ 871,000
Other Related Costs | 2017 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Liability, Beginning Balance	89,000
Restructuring Related Charges	104,000		339,000
Cash Payments	(143,000)		(289,000)
Liability, Ending Balance	$ 50,000		$ 50,000