Stockholders' Equity (Tables)

12 Months Ended

Aug. 31, 2012

Stockholders' Equity [Abstract]

Weighted Average Assumptions Used To Estimate The Fair Value Of Stock Option Grants

	2012		2011		2010
Expected term (years)	4.9		4.7		4.5
Expected volatility	48	%	46	%	45	%
Risk-free interest rate	0.8	%	2.0	%	2.2	%
Expected dividend yield	0	%	0	%	0	%

Summary Of Stock Option Activity

					Weighted
				Weighted	Average
				Average	Remaining		Aggregate
				Exercise	Contractual		Intrinsic
	Options			Price	Life (Yrs.)		Value
Outstanding at September 1, 2011	7,331		$	13.06
Granted	1,019			6.91
Exercised	(31	)		9.14
Forfeited or expired	(1,061	)		11.70
Outstanding at August 31, 2012	7,258		$	12.41	3.46	$	3,330
Exercisable at August 31, 2012	5,467		$	13.80	2.73	$	569

Summary Of Restricted Stock Units

				Weighted Average
	Restricted			Grant Date Fair
	Stock Units			Value
Outstanding at September 1, 2011	150		$	9.20
Granted	46			6.92
Vested	(77	)		9.20
Forfeited	—			—
Outstanding at August 31, 2012	119		$	8.31