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Calculation Of Net Income Per Share
 12 Months Ended
Dec. 31, 2015
Earnings Per Share [Abstract]  
Calculation Of Net Income Per Share Attributable To Verisign Stockholders
Calculation of Earnings per Share
The following table presents the computation of weighted-average shares used in the calculation of basic and diluted earnings per share:
 
Year Ended December 31,
 
2015
 
2014
 
2013
 
(In thousands)
Weighted-average shares of common stock outstanding
114,155

 
126,710

 
144,591

Weighted-average potential shares of common stock outstanding:
 
 
 
 
 
Conversion spread related to Subordinated Convertible Debentures
18,047

 
13,384

 
10,361

Unvested RSUs
785

 
740

 
709

Stock options and ESPP
44

 
61

 
125

Shares used to compute diluted earnings per share
133,031

 
140,895

 
155,786



The calculation of diluted weighted average shares outstanding, excludes potentially dilutive securities, the effect of which would have been anti-dilutive, as well as performance based RSUs granted by the Company for which the relevant performance criteria have not been achieved. The number of potential shares excluded from the calculation was not significant in any period presented.