XML 59 R21.htm IDEA: XBRL DOCUMENT  v2.3.0.11
Share-Based Compensation
6 Months Ended
Jun. 30, 2011
Share-Based Compensation  
Share-Based Compensation
14. Share-Based Compensation

During the six months ended June 30, 2011, the Company granted approximately 0.7 million stock options and 0.2 million unvested shares, respectively. During the six months ended June 30, 2010, the Company granted approximately 0.9 million stock options and 0.3 million unvested shares, respectively.

Weighted average option fair values and assumptions for the periods specified are disclosed in the following table:

     Three Months Ended June 30,  
     2011     2010  

Weighted average fair value of grants

   $ 12.89      $ 9.22   

Dividend yield

     1.35     1.85

Volatility

     31.96     32.97

Risk-free forward interest rate

     0.26% - 5.62     0.34% - 5.33

Expected life (in years)

     5.89        5.97   
     Six Months Ended June 30,  
     2011     2010  

Weighted average fair value of grants

   $ 12.31      $ 9.54   

Dividend yield

     1.45     1.50

Volatility

     32.73     33.45

Risk-free forward interest rate

     0.28% - 5.62     0.32% - 5.69

Expected life (in years)

     6.13        5.98   

The assumptions are as follows:

 

   

The Company estimated volatility using its historical share price performance over the contractual term of the option.

 

   

The Company uses historical data to estimate the expected life of the option. The expected life assumption for the three and six months ended June 30, 2011 and 2010 is an output of the Binomial lattice option-pricing model, which incorporates vesting provisions, rate of voluntary exercise and rate of post-vesting termination over the contractual life of the option to define expected employee behavior.

 

   

The risk-free interest rate is based on the U.S. Treasury yield curve in effect at the time of grant for periods within the contractual life of the option. For the three and six months ended June 30, 2011 and 2010, we present the range of risk-free one-year forward rates, derived from the U.S. treasury yield curve, utilized in the Binomial lattice option-pricing model.

 

   

The expected dividend yield is based on the Company's current dividend yield as the best estimate of projected dividend yield for periods within the contractual life of the option.

The Company's policy is to recognize compensation cost on a straight-line basis over the requisite service period for the entire award. Additionally, the Company's general policy is to issue authorized and unissued shares of common stock to satisfy stock option exercises or grants of unvested shares.

Total compensation cost for the stock options is as follows:

 

     Three Months
Ended
June 30,
    Six Months
Ended
June 30,
 
     2011     2010     2011     2010  
     (In thousands)  

Cost of goods sold

   $ 208      $ 271      $ 443      $ 529   

Selling, general and administrative expenses

     1,930        1,906        3,983        3,863   
  

 

 

   

 

 

   

 

 

   

 

 

 

Total expense before income taxes

     2,138        2,177        4,426        4,392   

Income tax benefit

     (716     (713     (1,452     (1,413
  

 

 

   

 

 

   

 

 

   

 

 

 

Total expense after income taxes

   $ 1,422      $ 1,464      $ 2,974      $ 2,979   
  

 

 

   

 

 

   

 

 

   

 

 

 

 

Total compensation cost for the unvested shares is as follows:

 

     Three Months
Ended
June 30,
    Six Months
Ended
June 30,
 
     2011     2010     2011     2010  
     (In thousands)  

Cost of goods sold

   $ 150      $ 138      $ 298      $ 265   

Selling, general and administrative expenses

     2,945        2,267        5,358        4,673   
  

 

 

   

 

 

   

 

 

   

 

 

 

Total expense before income taxes

     3,095        2,405        5,656        4,938   

Income tax benefit

     (582     (483     (1,086     (1,050
  

 

 

   

 

 

   

 

 

   

 

 

 

Total expense after income taxes

   $ 2,513      $ 1,922      $ 4,570      $ 3,888   
  

 

 

   

 

 

   

 

 

   

 

 

 

Classification of stock compensation cost within the Consolidated Statements of Operations is consistent with classification of cash compensation for the same employees and $0.1 million of compensation cost was capitalized as part of inventory.

As of June 30, 2011, there was $13.6 million of total unrecognized compensation cost related to stock options that is expected to be recognized over a weighted-average period of 1.5 years, and $12.0 million of total unrecognized compensation cost related to unvested shares that is expected to be recognized over a weighted-average period of 1.2 years.