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Share-Based Compensation (Tables)
6 Months Ended
Jun. 30, 2012
Stock Option Plans

During the six months ended June 30, 2012, the stock option activity under our 2002 Stock Option Plan, 1995 Incentive and Non-Qualified Stock Option Plan for key employees, and 1996 Non-Employee Director’s Stock Option Plan (collectively the “Stock Option Plans”), was as follows:

 

     Weighted
Average Price Per
Share
     Number of Shares     Weighted
Average
Remaining
Contractual Life
(In Years)
     Aggregate
Intrinsic Value
 

Outstanding, January 1, 2012

   $ 10.97         2,912,000        

Granted

     17.50         601,000        

Cancelled

     12.93         (69,000     

Exercised

     14.95         (333,000     
  

 

 

    

 

 

      

Outstanding, June 30, 2012

   $ 12.39         3,111,000        6.36       $ 21,738,000   
  

 

 

    

 

 

   

 

 

    

 

 

 

Options exercisable as of June 30, 2012

        1,469,000        4.27       $ 15,129,000   
     

 

 

   

 

 

    

 

 

 
Summarized Information of Stock Options Outstanding

The following table summarizes information about stock options outstanding at June 30, 2012.

 

     Options Outstanding             Options
Exercisable
 

Exercise Price Range

   Number
Outstanding
     Average
Remaining
Contractual Life
     Weighted
Average Exercise
Price Per Share
     Number
Exercisable
     Weighted
Average Exercise
Price
 

$ 2.41 - 3.68

     414,000         1.10       $ 3.23         414,000       $ 3.23   

6.07

     278,000         2.49         6.07         278,000         6.07   

10.39

     428,000         6.52         10.39         214,000         10.39   

13.93 - 14.31

     928,000         6.69         14.15         479,000         14.08   

$ 16.11 - 17.50

     1,063,000         9.08         16.89         84,000         16.11   
  

 

 

    

 

 

    

 

 

    

 

 

    

 

 

 
     3,111,000         6.36       $ 12.39         1,469,000       $ 9.08   
  

 

 

    

 

 

    

 

 

    

 

 

    

 

 

 
Other Information Pertaining to Option Activity

Other information pertaining to option activity during the six month periods ended June 30, 2012 and 2011 was as follows:

 

     June 30, 2012      June 30, 2011  

Weighted average grant-date fair value of stock options granted:

   $ 2,438,000       $ 1,477,000   

Total fair value of stock options vested:

   $ 1,870,000       $ 1,015,000   

Total intrinsic value of stock options exercised:

   $ 3,853,000       $ 1,459,000   

Total pre-tax share-based compensation expense charged against income:

   $ 949,000       $ 935,000   

Total unrecognized compensation expense related to non-vested options:

   $ 4,948,000       $ 4,482,000   
Assumptions Used to Estimate Fair Value on Grant Date, Stock Options

The fair value of options granted in 2012 and 2011 was estimated on the date of grant using the Black-Scholes valuation model with the following weighted average assumptions:

 

     2012     2011  

Risk-free interest rate

     1.3     2.6

Expected volatility

     39.2     27.4

Weighted average expected life in years

     6.8        7.4   

Dividend yield

     3.6     3.7
Assumptions Used to Estimate Fair Value on Grant Date, Employee Stock Purchase Plan

Such expense was estimated on the date of grant using the Black-Scholes valuation model with the following weighted average assumptions:

 

     2012     2011  

Risk-free interest rate

     0.19     0.04

Expected volatility

     36.5     25.0

Weighted average expected life in years

     1.0        1.0   

Dividend yield

     3.6     3.7