Earnings Per Share

3 Months Ended

Nov. 30, 2011

Earnings Per Share [Abstract]

Earnings Per Share

2. Earnings Per Share

The following table presents the calculation of basic and diluted earnings per share:

	Three months ended November 30,
	2011		2010
Numerator:
Net income	$	5,499	$	7,242
Denominator:
Weighted average common shares outstanding – basic		61,693		61,639
Effect of dilutive employee stock options and unvested restricted stock units		44		114
Weighted average common shares – diluted		61,737		61,753
Net income per common share – basic	$	0.09	$	0.12
Net income per common share – diluted	$	0.09	$	0.12
Anti-dilutive securities excluded(1)		7,146		7,044
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(1) Anti-dilutive securities consist of stock options and unvested restricted stock units that were not included in the computation of diluted earnings per share because either the exercise price of the options was greater than the average market price of the common stock or the total assumed proceeds under the treasury stock method resulted in negative incremental shares and thus the inclusion would have been anti-dilutive.