Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
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Unrecognized cost of unvested share-based compensation awards.

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- Definition

Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

The total recognized tax benefit related to compensation cost for equity-based payment arrangements recognized in income during the period.

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Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Number of share instruments newly issued under a share-based compensation plan.

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Percentage of vesting of share-based compensation awards.

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Stock-Based Compensation (Details 1) - USD ($) $ in Thousands, shares in Millions	3 Months Ended		6 Months Ended
	Feb. 29, 2016	Feb. 28, 2015	Feb. 29, 2016	Feb. 28, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Recognition of stock-based compensation expense and related charges	$ 20,268	$ 14,968	$ 45,060	$ 32,982
Stock-based compensation expense, tax benefits	300	$ 100	$ 600	$ 500
Time-based restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period			3 years
Restricted stock units awarded			2.6	2.7
Performance-based restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock units awarded			1.3	1.7
Performance-based restricted stock units \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period			3 years
Performance-based restricted stock units \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period			5 years
Performance-based restricted stock units \| Maximum \| Possibility One
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage			100.00%
Performance-based restricted stock units \| Maximum \| Possibility Two
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage			150.00%
Market Based Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock units awarded			0.4	0.0
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation related to share-based compensation costs	$ 103,100		$ 103,100
Unrecognized compensation related to share-based compensation costs, weighted average period of recognition			1 year 7 months 6 days