Notes Payable, Long-Term Debt and Capital Lease Obligations (Additional Information) (Details 3)			3 Months Ended								12 Months Ended
		Jul. 06, 2015 USD ($)	Aug. 31, 2015 USD ($) Subsidiary	Feb. 28, 2014 USD ($)	Aug. 31, 2012 USD ($)	May. 31, 2012 USD ($)	Nov. 30, 2010 USD ($)	Aug. 31, 2009 USD ($)	May. 31, 2008 USD ($)	Feb. 29, 2008 USD ($)	Aug. 31, 2015 USD ($) Subsidiary	Aug. 31, 2014 USD ($)
Debt Instrument [Line Items]
Number of foreign subsidiaries with credit facilities | Subsidiary			9								9
Revolving credit facility initiation amount		$ 1,500,000,000
Revolving credit facility maximum borrowing capacity		2,000,000,000
Term loan facility maximum borrowing capacity		$ 500,000,000
Revolving credit facility amount borrowed			$ 1,300,000								$ 5,700,000,000
Revolving credit facility amount repaid			1,300,000								5,700,000,000
Term loan facility amount borrowed											500,000,000
Total assets			9,603,207,000								9,603,207,000	$ 8,479,746,000
Total liabilities			7,268,196,000								7,268,196,000	6,219,378,000
Debt obligation utilized	[1],[2]		30,410,000								30,410,000	$ 38,207,000
Short term loan			2,600,000								2,600,000
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Debt instrument, maturity date		Jul. 06, 2020
Debt Instrument, Term		5 years
Interest rate above federal funds rate		0.50%
Interest rate above one month LIBOR rate		1.00%
Term Loan Facility [Member]
Debt Instrument [Line Items]
Debt instrument, maturity date		Jul. 06, 2020
Debt Instrument, Term		5 years
Interest rate above federal funds rate		0.50%
Interest rate above one month LIBOR rate		1.00%
7.750% Senior Notes Due 2016
Debt Instrument [Line Items]
Senior Notes, stated interest rate								7.75%
Senior Notes, face amount								$ 312,000,000
Debt instrument, maturity date								Jul. 15, 2016
Debt Instrument, Term								7 years
Senior Notes, percent of face value								96.10%
Net proceeds in issuance of notes								$ 300,000,000
8.250% Senior Notes Due 2018
Debt Instrument [Line Items]
Senior Notes, stated interest rate									8.25%	8.25%
Senior Notes, face amount									$ 150,000,000	$ 250,000,000
Debt instrument, maturity date									Mar. 15, 2018	Mar. 15, 2018
Debt Instrument, Term									10 years	10 years
Senior Notes, percent of face value									97.50%	99.965%
Net proceeds in issuance of notes									$ 148,500,000	$ 245,700,000
5.625% Senior Notes Due 2020
Debt Instrument [Line Items]
Senior Notes, stated interest rate							5.625%
Senior Notes, face amount							$ 400,000,000
Debt instrument, maturity date							Dec. 15, 2020
Debt Instrument, Term							10 years
Net proceeds in issuance of notes							$ 400,000,000
4.700% Senior Notes due 2022
Debt Instrument [Line Items]
Senior Notes, stated interest rate					4.70%
Senior Notes, face amount					$ 500,000,000
Debt instrument, maturity date					Sep. 15, 2022
Debt Instrument, Term					10 years
Senior Notes, percent of face value					99.992%
Net proceeds in issuance of notes					$ 500,000,000
Foreign Line of Credit
Debt Instrument [Line Items]
Revolving credit facility maximum borrowing capacity				$ 100,000,000
Interest rate above base rate				1.70%
Variable Interest Entity
Debt Instrument [Line Items]
VIE credit capacity						$ 60,000,000
Lease agreement period						5 years
Total assets			28,500,000								28,500,000
Notes receivable			28,000,000								28,000,000
Total liabilities			27,800,000								27,800,000
Debt obligation utilized			$ 27,800,000								$ 27,800,000
United States of America, Dollars
Debt Instrument [Line Items]
Number of foreign subsidiaries with credit facilities | Subsidiary			5								5
Short term loan			$ 300,000								$ 300,000
Brazil, Brazil Real
Debt Instrument [Line Items]
Number of foreign subsidiaries with credit facilities | Subsidiary			1								1
Euros
Debt Instrument [Line Items]
Number of foreign subsidiaries with credit facilities | Subsidiary			1								1
Short term loan			$ 1,800,000								$ 1,800,000
Russia, Rubles
Debt Instrument [Line Items]
Number of foreign subsidiaries with credit facilities | Subsidiary			1								1
Short term loan			$ 500,000								$ 500,000
Taiwan, New Dollars
Debt Instrument [Line Items]
Number of foreign subsidiaries with credit facilities | Subsidiary			1								1
Minimum | Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Interest rate above base rate		0.00%
Interest rate above Eurocurrency rate		1.00%
Minimum | Term Loan Facility [Member]
Debt Instrument [Line Items]
Interest rate above base rate		0.125%
Interest rate above Eurocurrency rate		1.125%
Minimum | Foreign subsidiaries credit facilities
Debt Instrument [Line Items]
Interest rate for foreign subsidiaries credit facilities			0.80%								0.80%
Maximum | Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Interest rate above base rate		0.65%
Interest rate above Eurocurrency rate		1.65%
Maximum | Term Loan Facility [Member]
Debt Instrument [Line Items]
Interest rate above base rate		1.00%
Interest rate above Eurocurrency rate		2.00%
Maximum | Foreign subsidiaries credit facilities
Debt Instrument [Line Items]
Interest rate for foreign subsidiaries credit facilities			28.00%								28.00%

[1] During the third quarter of fiscal year 2012, the Company entered into a master lease agreement with a variable interest entity (the “VIE”) whereby it sells to and subsequently leases back from the VIE up to $ 60.0 million in certain machinery and equipment for a period of up to five years. In connection with this transaction, the Company holds a variable interest in the VIE, which was designed to hold debt obligations payable to third-party creditors. The proceeds from such debt obligations are uti lized to finance the purchase of the machinery and equipment that is then leased by the Company. The Company is the primary beneficiary of the VIE as it has both the power to direct the activities of the VIE that most significantly impact the VIE’s economi c performance and the obligation to absorb losses or the right to receive benefits that could potentially be significant to the VIE. Therefore, the Company consolidates the financial statements of the VIE and eliminates all intercompany transactions. At August 31, 2015 , the VIE had approximately $ 28.5 million of total assets, of which approximately $ 28.0 million was comprised of a note receivable due from the Company, and approximately $ 27.8 million of total liabilities, of which approximately $ 27.8 million were debt obligations to the third-party creditors (as the VIE has utilized approximately $ 27.8 million of the $ 60. 0 million debt obligation capacity). The third-party creditors have recourse to the Company ’s general credit only in the event that the Company defaults on its obligations under the terms of the master lease agreement. In addition, the assets held by the VIE can be used only to settle the obligations of the VIE.

[2] In addition to the loans described above, at August 31, 2015 , the Company has borrowings outstanding to fund working capital needs. These additional loans total approximately $ 2.6 million , of which $ 1.8 million are denominated in Euros , $0.5 million are denominated in Russian rubles and $ 0.3 million are denominated in U.S. dollars.