Stock-Based Compensation (Tables)

3 Months Ended

Nov. 30, 2016

Stock-Based Compensation [Abstract]

Summary of Stock Option and Stock Appreciation Right Activity

The following table summarizes shares available for grant and stock appreciation rights(“SARS”) activity from August 31, 2016 through November 30,2016:

								Weighted-
						Weighted-		Average
		Shares		Average		Average		Remaining
		Available	SARS	Intrinsic Value		Exercise		Contractual
		for Grant	Outstanding	(in thousands)		Price		Life (years)
Balance at August 31, 2016		4,898,739	2,439,066	$	1,066	$	25.32	1.13
	SARS canceled	1,331,769	(1,331,769)			$	29.27
	Restricted stock awards granted, net of
	forfeitures (a)	1,231,137	―
	SARS exercised	―	(28,818)			$	22.52
Balance at November 30, 2016		7,461,645	1,078,479	$	1,052	$	20.55	2.08
Exercisable at November 30, 2016			1,078,479	$	1,052	$	20.55	2.08
(a)	Represents the maximum number of shares that can be issued based on the achievement of certain performance criteria.

Summary of Restricted Stock Activity

	The following table summarizes restricted stock activity from August 31, 2016 through November 30, 2016:
					Weighted-
					Average
					Grant-Date
				Shares	Fair Value
		Unvested balance at August 31, 2016		14,777,178	$	21.09
		Changes during the period
			Shares granted (a)	2,705,180	$	23.57
			Shares vested	(1,812,168)	$	21.25
			Shares forfeited	(3,936,317)	$	20.79
		Unvested balance at November 30, 2016		11,733,873	$	21.74
(a)	For those shares granted that are based on the achievement of certain performance criteria, represents the maximum number of shares that can vest.