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Net Income Per Share
 9 Months Ended
Sep. 27, 2014
Earnings Per Share [Abstract]  
Net Income Per Share
Net Income Per Share:

We compute basic net income per share by dividing net income available to common stockholders by the weighted average number of common shares outstanding during the period. To determine diluted share count, we apply the treasury stock method to determine the dilutive effect of outstanding stock option shares, restricted stock units ("RSUs"), Employee Stock Purchase Plan ("ESPP") shares and treasury stock. Our application of the treasury stock method includes, as assumed proceeds, the average unamortized stock-based compensation expense for the period and the impact of the pro forma deferred tax benefit or cost associated with stock-based compensation expense.

A reconciliation of basic and diluted Net income per share is presented below (in thousands, except per share data):

 
Three Months Ended
 
Nine Months Ended
 
September 27, 2014
 
September 28, 2013
 
September 27, 2014
 
September 28, 2013
Basic and diluted Net income
$
9,406

 
$
8,844

 
$
33,161

 
$
15,774

Shares used in basic Net income per share
118,643

 
116,055

 
117,661

 
115,730

Dilutive effect of stock options, RSUs and ESPP shares
2,327

 
1,294

 
2,788

 
1,363

Shares used in diluted Net income per share
120,970

 
117,349

 
120,449

 
117,093

Basic Net income per share
$
0.08

 
$
0.08

 
$
0.28

 
$
0.14

Diluted Net income per share
$
0.08

 
$
0.08

 
$
0.28

 
$
0.13



The computation of diluted Net income per share for the three months ended September 27, 2014 and September 28, 2013, respectively, includes the effects of stock options, RSUs, ESPP shares, and treasury stock, aggregating approximately 2.3 million and 1.3 million, respectively, which are dilutive, and excludes the effects of stock options, RSUs and ESPP shares aggregating approximately 2.7 million and 8.6 million, respectively, which are antidilutive. The computation of diluted Net income per share for the nine months ended September 27, 2014 and September 28, 2013, respectively, includes the effects of stock options, RSUs, ESPP shares, and treasury stock, aggregating approximately 2.8 million and 1.4 million, respectively, which are dilutive, and excludes the effects of stock options, RSUs and ESPP shares aggregating approximately 2.4 million and 8.5 million, respectively, which are antidilutive. Stock options, RSUs and ESPP shares are considered antidilutive when the aggregate of exercise price, unrecognized stock-based compensation expense and excess tax benefit are greater than the average market price for our common stock during the period or when the Company is in a net loss position, as the effects would reduce the loss per share. Stock options, RSUs and ESPP shares that are antidilutive at September 27, 2014 could become dilutive in the future.