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Share-Based Compensation (Tables)
9 Months Ended
Sep. 30, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Fair Value of Option Grants

The fair value of option grants are estimated on the grant date using the Black-Scholes option-pricing model with the following weighted-average assumptions for option grants during the periods indicated below.

 

     Nine Months Ended
September 30,
 
     2016     2015  

Expected volatility

     46.04     47.15

Expected dividends

     0.00     0.00

Expected term (in years)

     5.80        6.15   

Risk-free rate

     1.32     1.62
Summary of Company's Stock Option Plan Activity

The following table summarizes the stock option activity for the nine months ended September 30, 2016:

 

In thousands, except per share amounts    Number of
Shares
     Weighted-Average
Price Per Share
     Weighted-Average
Remaining

Contractual
Life (Years)
     Aggregate
Intrinsic
Value
 

Options outstanding at beginning of the year

     1,044       $ 13.36         

Granted

     329         17.49         

Exercised

     (160      12.76         

Forfeited

     (4      15.66         

Expired

     —          —          
  

 

 

    

 

 

       

Options outstanding at September 30, 2016

     1,209       $ 14.55         6.4       $ 8,903   
  

 

 

    

 

 

    

 

 

    

 

 

 

Options exercisable at September 30, 2016

     542       $ 11.42         3.7       $ 5,681   
  

 

 

    

 

 

    

 

 

    

 

 

 

Available for grant at September 30, 2016

     202            
  

 

 

          
Summary of Additional Stock Option Information

The following table provides additional stock option information for the periods indicated:

 

     Three Months Ended
September 30,
     Nine Months Ended
September 30,
 
In thousands, except per share amounts    2016      2015      2016      2015  

Weighted-average grant date fair value per share

   $ 8.36       $ 8.56       $ 7.74       $ 7.13   

Intrinsic value of options exercised

   $ 708       $ 630       $ 979       $ 1,524   

Fair value of stock options that vested

   $ —        $ 42       $ 647       $ 892   
Summary of Restricted Stock Unit Activity

The following table summarizes restricted stock unit activity during the nine months ended September 30, 2016:

 

In thousands, except per unit amounts    Units      Weighted-Average
Grant Date
Fair Value
 

Non-vested units, beginning of the year

     124       $ 15.55   

Granted

     73         17.02   

Vested

     —          —    

Forfeited

     (1      15.59   
  

 

 

    

 

 

 

Non-vested units, at September 30, 2016

     196       $ 16.10   
  

 

 

    

 

 

 
Summary of Additional Restricted Stock Unit Information

The following table provides additional restricted stock unit information for the periods indicated:

 

     Three Months Ended
September 30,
     Nine Months Ended
September 30,
 
     2016      2015      2016      2015  

Weighted-average grant date fair value per unit

   $ —        $ 19.01       $ 17.02       $ 14.88   
Summary of Cash Settled Performance Shares Activity

The following table summarizes cash-settled performance unit activity during the nine months ended September 30, 2016:

 

In thousands, except per unit amounts    Units      Weighted-Average
Grant Date
Fair Value
 

Non-vested units, beginning of the year

     1,923       $ 1.00   

Granted

     1,252         1.00   

Vested

     —          —    

Forfeited

     (21      1.00   
  

 

 

    

 

 

 

Non-vested units, at September 30, 2016

     3,154       $ 1.00   
  

 

 

    

 

 

 
Summary of Restricted Stock Activity

The following table summarizes restricted stock activity during the nine months ended September 30, 2016:

 

In thousands, except per share amounts     Shares      Weighted-Average
Grant Date
Fair Value
 

Non-vested shares, beginning of the year

     23       $ 16.74   

Granted

     37         16.37   

Vested

     (21      16.62   

Forfeited

     —          —    
  

 

 

    

 

 

 

Non-vested shares, at September 30, 2016

     39       $ 16.46   
  

 

 

    

 

 

 
Summary of Additional Restricted Stock Information

The following table provides additional restricted stock information:

 

     Three Months Ended
September 30,
     Nine Months Ended
September 30,
 
In thousands, except per share amounts    2016      2015      2016      2015  

Weighted-average grant date fair value per share

   $ —        $ 19.42       $ 16.37       $ 15.36   

Fair value of restricted stock awards that vested

   $ —        $ —        $ 347       $ 2,198