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Stock-based Compensation
3 Months Ended
Mar. 30, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Stock-based compensation
Stock-based Compensation

The Company recognized stock-based compensation expense as follows (in thousands):

 
THIRTEEN
WEEKS ENDED
MARCH 30, 2014
 
THREE
MONTHS ENDED
MARCH 31, 2013
Stock options
$
2,468

 
$
3,985

Restricted stock and restricted stock units
749

 
375

Performance-based share units
358

 
69

 
$
3,575

 
$
4,429



During the thirteen weeks ended March 30, 2014, the Company made grants to its employees of 1.2 million stock options, 0.3 million restricted stock units and 0.1 million performance-based share units. The weighted-average grant date fair value per stock option was $12.06.

The following represents unrecognized stock compensation expense and the remaining weighted-average vesting period at March 30, 2014:

 
UNRECOGNIZED
COMPENSATION EXPENSE
(in thousands)
 
REMAINING WEIGHTED-AVERAGE VESTING PERIOD (in years)
Stock options
$
32,087

 
3.2
Restricted stock and restricted stock units
$
13,657

 
3.2
Performance-based share units
$
2,190

 
0.9