v2.4.0.8
Share-Based Compensation (Tables)
6 Months Ended
Jun. 29, 2013
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]  
Number and Weighted Average Exercise Price of Options Issued and Outstanding under all Stock Option Plans

The number and weighted average exercise price of options issued and outstanding under all stock option plans are as follows (in thousands, except for exercise prices):

 

     Six Months Ended
June 29, 2013
 
     Shares     Average
Exercise
Price
 

Options outstanding, beginning of period

     8,368      $ 22.78   

Granted

     1,512      $ 20.74   

Canceled

     (447   $ 23.65   

Exercised

     (166   $ 5.41   
  

 

 

   

Options outstanding, end of period

     9,267      $ 22.72   
  

 

 

   

Options exercisable, end of period

     5,059      $ 22.62   

Options available for grant, end of period

     5,588     

 

Range of Assumptions Used and Resulting Weighted-Average Fair Value of Options Granted at Date of Grant

The Black-Scholes option pricing model is used to estimate the fair value of options granted under the Company’s share-based compensation plans. The range of assumptions used and the resulting weighted-average fair value of options granted at the date of grant were as follows:

 

     Three Months Ended    Six Months Ended
     June 29,
2013
   June 30,
2012
   June 29,
2013
   June 30,
2012

Risk-free interest rate

   0.7% to 1.6%    0.8% to 1.3%    0.7% to 1.6%    0.8% to 1.3%

Expected term

   5.5 years    5.5 years    5.5 years    5.5 years

Estimated volatility

   36.2% to 37.7%    37.3% to 38.3%    36.2% to 39.6%    37.3% to 42.6%

Expected dividends

   0%    0%    0%    0%

Weighted-average fair value of options granted

   $7.61    $7.66    $7.47    $7.84