Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

Equity (Tables)

v3.20.4
Equity (Tables)
12 Months Ended
Dec. 31, 2020
Stockholders' Equity Note [Abstract]  
Summary of RSUs and PSUs Activity
  Number of Options Weighted Average Exercise Price
Options outstanding as of December 31, 2019   1,961,532   $ 31.16  
Granted   440,000     17.55  
Exercised   (11,184 )    17.15  
Forfeited   (287,819 )    33.55  
Options outstanding as of December 31, 2020   2,102,529   $ 28.06  
Options exercisable as of December 31, 2020   1,691,217   $ 30.64  

 

Schedule of Stock Options Outstanding
        Options Outstanding   Options Exercisable  
        Outstanding   Weighted- Average       Exercisable    
        options at   Remaining   Weighted- Average   options at   Weighted- Average
Range of   December 31,   Contractual   Exercise   December 31,   Exercise
Exercise Prices   2020   Life in Years   Price   2020   Price
$ 2.74   - $ 19.61       411,295       8.99     $ 17.23       62,959     $ 19.32  
$ 19.66   - $ 19.66       651,452       6.04       19.66       608,026       19.66  
$ 19.96   - $ 23.41       543,156       6.25       21.84       524,669       21.85  
$ 24.66   - $ 120.51       496,626       3.62       54.81       495,563       54.87  
          2,102,529       6.10     $ 28.06       1,691,217     $ 30.64  
                         
Aggregate intrinsic value (U.S. $ in thousands)   $ 2,213             $ 820      
Schedule of Stock Option Assumptions
    2020 2018
Risk-free interest rate   0.4%-1.8% 2.9%-3.1%
Expected option term (years)   5.0-5.1 5.3-5.5
Expected share price volatility   52.5%-52.8% 52.0%-52.2%
Dividend yield   - -
Weighted average grant date fair value   $8.09 $11.49
Summary of RSUs and PSUs Activity
    Number of RSUs and PSUs   Weighted Average Grant Date Fair Value
Unvested RSUs and PSUs outstanding as of December 31, 2019     2,362,991     $ 24.10  
Granted     1,671,436       17.90  
Vested     (677,249 )      23.19  
Forfeited     (556,062 )      21.80  
Unvested RSUs and PSUs outstanding as of December 31, 2020     2,801,116     $ 21.08  
Schedule of stock-based compensation expense
    2020   2019   2018
    (U.S. $ in thousands)
             
Cost of revenues   $ 1,771     $ 1,848     $ 1,474  
Research and development, net     6,102       5,167       3,215  
Selling, general and administrative     12,331       13,549       10,997  
Total stock-based compensation expenses   $ 20,204     $ 20,564     $ 15,686  
Schedule of accumulated other comprehensive loss
    Year ended December 31, 2020
    Net unrealized gain (loss) on cash flow hedges     Foreign currency translation adjustments     Total
    U.S. $ in thousands
                 
Balance as of January 1, 2020   $ (10 )      $ (7,706 )      $ (7,716 ) 
Other comprehensive loss before reclassifications     (1,024 )        533         (490 ) 
Amounts reclassified from accumulated other comprehensive loss     (639 )        -         (639 ) 
Other comprehensive income (loss)     (1,663 )        533         (1,130 ) 
Balance as of December 31, 2020   $ (1,673 )      $ (7,173 )      $ (8,846 ) 
    Year ended December 31, 2019
    Net unrealized gain (loss) on cash flow hedges     Foreign currency translation adjustments     Total
    U.S. $ in thousands
Balance as of January 1, 2019   $ (627 )      $ (7,126 )      $ (7,753 ) 
Other comprehensive loss before reclassifications     1,548         (580 )        968  
Amounts reclassified from accumulated other comprehensive loss     (931 )        0         (931 ) 
Other comprehensive income (loss)     617       $ (580 )        37  
Balance as of December 31, 2019   $ (10 )        (7,706 )      $ (7,716 ) 
 
    Year ended December 31, 2018
    Net unrealized gain (loss) on cash flow hedges     Foreign currency translation adjustments     Total
    U.S. $ in thousands
Balance as of January 1, 2018   $ 330       $ (7,353 )      $ (7,023 ) 
Other comprehensive loss before reclassifications     (1,814 )        (2,691 )        (4,505 ) 
Amounts reclassified from accumulated other comprehensive loss     857         2,918         3,775  
Other comprehensive income (loss)     (957 )        227         (730 ) 
Balance as of December 31, 2018   $ (627 )      $ (7,126 )      $ (7,753 )