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Stock-Based Compensation (Tables)
9 Months Ended
Sep. 26, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Schedule of Stock Option Activity
The following table summarizes stock option activity (in thousands, except per share data):
 
Stock Options
 
Weighted Average Exercise Price
 
Aggregate Intrinsic Value
 
Weighted Average Remaining Term
Outstanding - December 27, 2014
1,466

 
$
3.74

 
$
7,551

 
8.0
Granted
96

 
$
16.30

 
 
 
 
Exercised
(329
)
 
$
1.45

 
 
 
 
Canceled
(53
)
 
$
0.86

 
 
 
 
Outstanding - September 26, 2015
1,180

 
$
4.50

 
$
24,746

 
8.0