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Common and Common Equivalent Shares (Tables)

9 Months Ended

Sep. 30, 2012

Schedule of Calculation of Shares Used in the Basic and Diluted Net Income Per Share

The calculation of shares used in the basic and diluted net income per share calculation for the three and nine months ended September 30, 2012 and 2011 is as follows (in thousands):

		Three Months  Ended September 30,								Nine Months  Ended September 30,
		2012				2011				2012				2011
Weighted average number of common shares outstanding			48,938				47,990				48,569				47,564
Weighted average number of dilutive common share equivalents			871				945				1,001				1,119
Weighted average number of common and common equivalent shares outstanding			49,809				48,935				49,570				48,683
Antidilutive securities not included in the dilutive earnings per share calculation			38				42				35				47

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- Definition

Tabular disclosure of the weighted average number of shares used in calculating basic net earnings per share (or unit) and diluted earnings per share (or unit).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 260

-SubTopic 10

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

+ Details

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