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Share-Based Compensation
3 Months Ended
Mar. 31, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Share-Based Compensation

8. Share-Based Compensation

Incentive Plan

Restricted Stock

During the three months ended March 31, 2015, the University granted 313 shares of common stock with a service vesting condition to certain of its executives, officers, faculty and employees. The restricted shares have voting rights and vest in five annual installments of 20% starting on March 1, 2016 and each of the four anniversaries of the vesting date following the date of grant. Upon vesting, shares will be held in lieu of taxes equivalent to the minimum statutory tax withholding required to be paid when the restricted stock vests. During the three months ended March 31, 2015, the University withheld 91 shares of common stock in lieu of taxes at a cost of $4,178 on the restricted stock vesting dates.

A summary of the activity related to restricted stock granted under the University’s Incentive Plan since December 31, 2014 is as follows:

 

     Total
Shares
     Weighted Average
Grant Date
Fair Value per Share
 

Outstanding as of December 31, 2014

     1,033       $ 28.75   

Granted

     313       $ 45.75   

Vested

     (257    $ 26.47   

Forfeited, canceled or expired

     (3    $ 25.82   
  

 

 

    

Outstanding as of March 31, 2015

  1,086    $ 34.19   
  

 

 

    

 

Stock Options

During the three months ended March 31, 2015, no options were granted. A summary of the activity related to stock options granted under the University’s Incentive Plan since December 31, 2014 is as follows:

 

     Summary of Stock Options Outstanding  
     Total
Shares
     Weighted
Average
Exercise
Price per
Share
     Weighted
Average
Remaining
Contractual
Term (Years)
     Aggregate
Intrinsic
Value ($)(1)
 

Outstanding as of December 31, 2014

     2,452       $ 14.83         

Granted

     —         $ —           

Exercised

     (105    $ 16.57         

Forfeited, canceled or expired

     (3    $ 16.90         
  

 

 

          

Outstanding as of March 31, 2015

  2,344    $ 14.75      4.60    $ 66,930   
  

 

 

    

 

 

    

 

 

    

 

 

 

Exercisable as of March 31, 2015

  2,116    $ 14.58      4.45    $ 60,783   
  

 

 

    

 

 

    

 

 

    

 

 

 

Available for issuance as of March 31, 2015

  1,927   
  

 

 

          

 

(1) Aggregate intrinsic value represents the value of the University’s closing stock price on March 31, 2015 ($43.30) in excess of the exercise price multiplied by the number of shares underlying options outstanding or exercisable, as applicable.

Share-based Compensation Expense

The table below outlines share-based compensation expense for the three months ended March 31, 2015 and 2014 related to restricted stock and stock options granted:

 

     2015      2014  

Instructional costs and services

   $ 1,549       $ 1,312   

Admissions advisory and related expenses

     44         37   

Marketing and promotional

     46         60   

General and administrative

     964         795   
  

 

 

    

 

 

 

Share-based compensation expense included in operating expenses

  2,603      2,204   

Tax effect of share-based compensation

  (1,041   (882
  

 

 

    

 

 

 

Share-based compensation expense, net of tax

$ 1,562    $ 1,322