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Stock-Based Compensation (Tables)
12 Months Ended
Dec. 31, 2014
Summary of Stock Option Outstanding

The following table summarizes information about stock options outstanding at December 31, 2014:

 

Options Outstanding

     Options Exercisable  

Exercise Price

   Number
Outstanding
     Weighted
Average
Remaining
Contractual
Life (years)
     Weighted
Average
Exercise
Price
     Number
Exercisable
     Weighted
Average
Exercise
Price
 

$22.06

     12,000         0.0       $ 22.06         —        $ 22.06   

$18.48

     458,356         3.2       $ 18.48         316,356       $ 18.48   
  

 

 

          

 

 

    

Totals

  470,356      3.1    $ 18.57      316,356    $ 18.48   
  

 

 

          

 

 

    
Performance Stock Plan [Member]  
Summary of Stock Based Compensation Plan Activity

A summary of PSP activity for the years ended December 31, 2014, 2013 and 2012 is as follows:

 

     Weighted-
Average
Grant
Date Fair
Value
     Granted
Shares
     Awarded
Shares
    Shares Not
Yet
Awarded
 

Outstanding at January 1, 2012

   $ 8.08         4,931,812         3,345,269        1,586,543   
     

 

 

    

 

 

   

 

 

 

Granted

$ —       —       —       —    

Awarded

$ 8.09      —       7,743      (7,743

Vested

$ 3.29      (877,224   (877,224   —    

Forfeited

$ 13.06      (363,566   (81,283   (282,283
     

 

 

    

 

 

   

 

 

 

Outstanding at December 31, 2012

$ 8.72      3,691,022      2,394,505      1,296,517   
     

 

 

    

 

 

   

 

 

 

Granted

$ —       —       —       —    

Awarded

$ 10.25      —       122,021      (122,021

Vested

$ 4.01      (119,364   (119,364   —    

Forfeited

$ 8.73      (1,200,371   (101,310   (1,099,061
     

 

 

    

 

 

   

 

 

 

Outstanding at December 31, 2013

$ 8.62      2,371,287      2,295,852      75,435   
     

 

 

    

 

 

   

 

 

 

Granted

$ —       —       —       —    

Awarded

$ —       —       —       —    

Vested

$ 16.76      (277,009   (277,009   —    

Forfeited

$ 9.75      (165,647   (115,630   (50,017
     

 

 

    

 

 

   

 

 

 

Outstanding at December 31, 2014

$ 8.71      1,928,631      1,903,213      25,418   
     

 

 

    

 

 

   

 

 

 
Stock Incentive Plan [Member]  
Summary of Stock Based Compensation Plan Activity

A summary of SIP activity for the years ended December 31, 2014, 2013 and 2012 is as follows:

 

     Weighted-
Average
Grant
Date Fair
Value
     Granted
Shares
     Awarded
Shares
    Shares Not
Yet
Awarded
 

Outstanding at January 1, 2012

   $ 23.06         2,478,057         37,408        2,440,649   
     

 

 

    

 

 

   

 

 

 

Granted

$ 22.59      814,545      —       814,545   

Awarded

$ —       —       —       —    

Vested

$ —       —       —       —    

Forfeited

$ 23.62      (135,291   —       (135,291
     

 

 

    

 

 

   

 

 

 

Outstanding at December 31, 2012

$ 22.91      3,157,311      37,408      3,119,903   
     

 

 

    

 

 

   

 

 

 

Granted

$ 31.95      3,719,974      —       3,719,974   

Awarded

$ 30.71      —       966,215      (966,215

Vested

$ —       —       —       —    

Forfeited

$ 23.88      (271,184   (7,906   (263,278
     

 

 

    

 

 

   

 

 

 

Outstanding at December 31, 2013

$ 27.96      6,606,101      995,717      5,610,384   
     

 

 

    

 

 

   

 

 

 

Granted

$ 31.02      422,572      113,088     309,484   

Awarded

$ —       —       —       —    

Vested

$ —       —       —       —    

Forfeited

$ 27.41      (369,626   (47,915   (321,711
     

 

 

    

 

 

   

 

 

 

Outstanding at December 31, 2014

$ 28.19      6,659,047      1,060,890      5,598,157   
     

 

 

    

 

 

   

 

 

 
Non Cash [Member]  
Non-Cash Stock-Based Compensation Expense

The non-cash stock-based compensation expense for the years ended December 31 is as follows:

 

(in thousands)

   2014      2013      2012  

Stock Incentive Plan

   $ 14,447       $ 15,934       $ 9,288   

Employee Stock Purchase Plan

     2,425         3,538         2,856   

Performance Stock Plan

     2,354         2,310         2,612   

Incentive Stock Option Plan

     137         821         1,109   
  

 

 

    

 

 

    

 

 

 

Total

$ 19,363    $ 22,603    $ 15,865   
  

 

 

    

 

 

    

 

 

 
Stock Option [Member]  
Summary of Stock Based Compensation Plan Activity

A summary of stock option activity for the years ended December 31, 2014, 2013 and 2012 is as follows:

 

Stock Options

   Shares
Under
Option
     Weighted-
Average
Exercise
Price
     Weighted-
Average
Remaining
Contractual
Term
(in years)
     Aggregate
Intrinsic
Value
(in thousands)
 

Outstanding at January 1, 2012

     1,384,537       $ 17.58         4.4       $ 14,587   
  

 

 

          

Granted

  —     $ —    

Exercised

  (645,745 $ 16.64   

Forfeited

  —     $ —    

Expired

  —     $ —    
  

 

 

          

Outstanding at December 31, 2012

  738,792    $ 18.39      4.9    $ 8,891   
  

 

 

          

Granted

  —     $ —    

Exercised

  (115,847 $ 17.56   

Forfeited

  —     $ —    

Expired

  —     $ —    
  

 

 

          

Outstanding at December 31, 2013

  622,945    $ 18.55      4.1    $ 7,289   
  

 

 

          

Granted

  —     $ —    

Exercised

  (106,589 $ 18.48   

Forfeited

  (46,000 $ 18.48   

Expired

  —     $ —    
  

 

 

          

Outstanding at December 31, 2014

  470,356    $ 18.57      3.1    $ 5,087   
  

 

 

          

Ending vested and expected to vest at December 31, 2014

  470,356    $ 18.57      3.1    $ 5,087   

Exercisable at December 31, 2014

  316,356    $ 18.48      3.2    $ 4,565   

Exercisable at December 31, 2013

  422,945    $ 18.48      4.2    $ 5,460   

Exercisable at December 31, 2012

  162,792    $ 17.82      4.0    $ 1,243