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Common And Common Equivalent Shares (Tables)

3 Months Ended

Mar. 31, 2012

Common And Common Equivalent Shares [Abstract]

Schedule Of Calculation Of Shares Used In The Basic And Diluted Net Income Per Share

		Three Months Ended March  31,
		2012				2011
Weighted average number of common shares outstanding			48,269				47,149
Weighted average number of dilutive common share equivalents			1,130				1,212
Weighted average number of common and common equivalent shares outstanding			49,399				48,361
Antidilutive securities not included in the dilutive earnings per share calculation			28				37

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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

-Topic 260

-SubTopic 10

-Publisher FASB

-Number

-Article

-Subparagraph

-Name Accounting Standards Codification

-Paragraph 1

-Section 50

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

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