Stockholders’ Equity (Tables)

12 Months Ended

Aug. 31, 2014

Stockholders’ Equity [Abstract]

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

	2014		2013		2012
Expected term (years)	4.7		4.9		4.9
Expected volatility	37	%	48	%	48	%
Risk-free interest rate	1.5	%	0.8	%	0.8	%
Expected dividend yield	-	%	-	%	-	%

Summary Of Stock Option Activity

	Options		Weighted Average Exercise Price	Weighted Average Remaining Contractual Life (Yrs.)		Aggregate Intrinsic Value
Outstanding September 1, 2013	5,562	$	12.25
Granted	532		20.48
Exercised	(1,727)		12.76
Forfeited or expired	(207)		19.37
Outstanding at August 31, 2014	4,160	$	12.73	3.30	$	35,255
Exercisable at August 31, 2014	2,977	$	12.12	2.38	$	27,155

Summary Of Restricted Stock Units

	Restricted Stock Units		Weighted Average Grant Date Fair Value
Outstanding September 1, 2013	71	$	9.36
Granted	33		20.59
Vested	(56)		10.03
Forfeited	(2)		6.80
Outstanding at August 31, 2014	46	$	16.78