Stock-Based Compensation (Tables)

3 Months Ended

Nov. 30, 2014

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Summary of Stock Option and Stock Appreciation Right Activity

The following table summarizes shares available for grant and stock option and stock appreciation right activity from August 31, 2014 through November 30, 2014:


	Shares Available for Grant			Options Outstanding			Average Intrinsic Value (in thousands)		Weighted- Average Exercise Price		Weighted- Average Remaining Contractual Life (years)
Balance at August 31, 2014		10,823,646			5,432,002		$	400	$	26.32		1.52
Options granted		(435,000	)		435,000				$	18.49
Options canceled		1,616,100			(1,616,100	)			$	24.16
Restricted stock awards granted⁽¹⁾		(3,954,910	)		—
Options exercised		—			(2,947	)			$	10.82

Balance at November 30, 2014		8,049,836			4,247,955		$	1,305	$	26.35		2.32

Exercisable at November 30, 2014					4,247,955		$	1,305	$	26.35		2.32

⁽¹⁾	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, 2014 through November 30, 2014:


	Shares			Weighted- Average Grant-Date Fair Value
Unvested balance at August 31, 2014		9,800,942		$	19.89
Changes during the period
Shares granted⁽¹⁾		4,972,167		$	18.49
Shares vested		(1,493,320	)	$	19.60
Shares forfeited		(1,017,257	)	$	20.13

Unvested balance at November 30, 2014		12,262,532		$	19.39

⁽¹⁾	For those shares granted that are based on the achievement of certain performance criteria, represents the maximum number of shares that can vest.