Annual report pursuant to Section 13 and 15(d)

Stock-Based Compensation (Tables)

v3.19.1
Stock-Based Compensation (Tables)
12 Months Ended
Dec. 31, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Summary of Fair Values of Stock Options Granted and Assumptions used in Black-Scholes Model

The estimated fair values of stock options granted and the assumptions used for the Black-Scholes option pricing model were as follows:

 

          2018              2017              2016      

Estimated fair values of stock options granted

   $ 9.09      $ 2.42      $ 5.03  

Assumptions:

        

Risk-free interest rate

     2.2% - 3.0%        1.3% - 2.4%        0.6%  

Expected volatility

     40.9% - 57.2%        27.4% - 45.1%        30.0%  

Expected term (in years)

     5.6 - 10 years        1.2 - 10 years        5.8 - 6.2 years  

Summary of Stock Option Activity

Information on stock option activity follows:

 

      Options
Exercisable
    

Weighted-
Average
Exercise

Price Per
Share

     Options
Outstanding
   

Weighted-
Average
Exercise

Price Per
Share

 

Balance as of December 31, 2016

     -      $               -        1,930,600     $         4.45  

Granted

           2,120,347       13.29  

Exercised

           (68,780     3.95  

Forfeited or expired

                       (98,735     1.23  

Balance as of December 31, 2017

     1,244,968      $ 5.20        3,883,432       9.16  

Granted

           554,243       16.69  

Exercised

           (592,342     4.43  

Forfeited or expired

                       (643,446     12.52  

Balance as of December 31, 2018

     1,278,038      $ 7.45        3,201,887     $ 10.67  

Schedule of Net Cash Proceeds from Exercise of Stock Options Less Shares Used for Minimum Withholding Taxes and Intrinsic Value of Options Exercised

Net cash proceeds from the exercise of stock options less shares used for minimum withholding taxes and the intrinsic value of options exercised were as follows:

 

     Year ended December 31,  
In Thousands        2018              2017              2016      

Net cash proceeds

   $ 2,622      $ 265      $  -  

Intrinsic value of options exercised

   $ 7,569      $ 1,347      $ -  

Summary of Activity of Restricted Stock Units

Information on restricted stock unit activity follows:

 

      Number of
Restricted Stock
Units Outstanding
    Weighted-Average
Grant Date Fair
Value
 

Unvested balance at December 31, 2017

     1,373,933     $ 8.00  

Granted

     315,825       16.76  

Vested

     (261,507     9.89  

Cancelled

     (376,837     10.72  

Unvested balance at December 31, 2018

     1,051,414     $ 10.15  

Schedule of Weighted Average Price Per Unit

 

     Year ended December 31,  
          2018              2017              2016      

Weighted average price per unit

   $ 16.76      $ 8.00      $  -