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Net Loss per Share
 6 Months Ended
Jul. 01, 2017
Earnings Per Share [Abstract]  
Net Loss Per Share
Net Loss per Share

We compute basic net loss per share by dividing net loss 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"), and Employee Stock Purchase Plan ("ESPP") shares. 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. When we are in a net loss position, we do not include dilutive securities as their inclusion would reduce the net loss per share.

A summary of basic and diluted net loss per share is presented in the following table:
 
Three Months Ended
 
Six Months Ended
(in thousands, except per share data)
July 1, 2017
 
July 2, 2016
 
July 1, 2017
 
July 2, 2016
Basic and diluted net loss
$
(13,022
)
 
$
(13,810
)
 
$
(20,297
)
 
$
(33,521
)
Shares used in basic and diluted net loss per share
122,390

 
119,445

 
122,095

 
119,125

Basic and diluted net loss per share
$
(0.11
)
 
$
(0.12
)
 
$
(0.17
)
 
$
(0.28
)


The computation of diluted net loss per share excludes the effects of stock options, RSUs, and ESPP shares that are antidilutive, aggregating approximately the following number of shares:
 
Three Months Ended
 
Six Months Ended
(in thousands)
July 1, 2017
 
July 2, 2016
 
July 1, 2017
 
July 2, 2016
Stock options, RSUs, and ESPP shares excluded as they are antidilutive
6,000

 
7,579

 
5,946

 
7,781



Stock options, RSUs, and ESPP shares are considered antidilutive when the aggregate of exercise price and unrecognized stock-based compensation expense 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 July 1, 2017 could become dilutive in the future.