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Share Based Compensation
 3 Months Ended
Mar. 30, 2013
Share-based Compensation [Abstract]  
Share Based Compensation
Share-Based Compensation:

Share-based compensation includes stock option and restricted stock unit awards and certain transactions under our Employee Stock Purchase Plan (the “ESPP”).   Share-based compensation expense is recognized based on grant date fair value of all options and restricted stock unit awards plus a discount on shares purchased by employees as a part of the ESPP.  The discount under the ESPP represents the difference between the grant date market value and the employee’s purchase price.

There were no significant modifications to the Company's share-based compensation plans during the fiscal three months ended March 30, 2013.

For the first quarters of fiscal 2013 and 2012, share-based compensation expense was $3.4 million and $4.6 million, respectively.

Stock Options

The following summarizes information concerning stock option grants during each of the first three months of fiscal 2013 and 2012:
 
Fiscal three months ended
 
March 30,
2013
 
March 31,
2012
Stock options granted
493,363

 
544,991

Weighted average exercise price
$
103.32

 
$
85.08

Weighted average fair value per option
$
29.33

 
$
26.11



As of March 30, 2013, total unrecognized compensation expense related to non-vested stock options was approximately $25.7 million with a remaining weighted average expense recognition period of 1.5 years.


Restricted Stock Units

The following summarizes information concerning restricted stock unit grants during each of the first three months of fiscal 2013 and 2012:
 
Fiscal three months ended
 
March 30,
2013
 
March 31,
2012
Restricted stock units granted
24,290

 
33,951

Weighted average fair value per share
$
102.99

 
$
85.08



As of March 30, 2013, total unrecognized compensation expense related to non-vested restricted stock units was approximately $5.2 million with a remaining weighted average expense recognition period of 1.9 years.