XML 20 R25.htm IDEA: XBRL DOCUMENT v2.4.0.8
Equity-Based Compensation Expense (Tables)
9 Months Ended
Sep. 30, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Black-Scholes Option-Pricing Model Assumptions

The fair value of the Options granted during 2014 was estimated on the grant date using the Pricing Model, based on the following assumptions:

 

Estimated average holding period (years)

   5.16

Risk free interest rate (range)

   1.064% - 2.489%

Expected volatility (range)

   18.585% - 30.571%

Expected dividend rate

   0.00%

Weighted average grant-date fair value per share of options granted

   $267.62
Stock-Based Compensation Plans

 

           Weighted Avg.  
     Options     Exercise Price  

Outstanding at December 31, 2013

     667      $ 740.18   

Granted

     675        1,094.82   

Exercised

     (99     657.85   

Forfeited

     (18     819.08   
  

 

 

   

Outstanding at September 30, 2014

     1,225      $ 941.31   
  

 

 

   

Exercisable at September 30, 2014

     177      $ 627.80