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Common and Common Equivalent Shares: (Tables)

6 Months Ended

Jun. 30, 2014

Earnings Per Share [Abstract]

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

The calculation of shares used in the basic and diluted net income per common share calculation for the three and six months ended June 30, 2014 and 2013 is as follows (in thousands):

		Three Months Ended June 30,								Six Months Ended June 30,
		2014				2013				2014				2013
Weighted average number of common shares outstanding			98,411				99,116				98,689				98,868
Weighted average number of dilutive common share equivalents			1,455				1,982				1,537				2,074
Weighted average number of common and common equivalent shares outstanding			99,866				101,098				100,226				100,942
Antidilutive securities not included in the dilutive earnings per share calculation			—				138				—				68

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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

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