Current report of foreign issuer pursuant to Rules 13a-16 and 15d-16 Amendments

Equity (Tables)

v3.10.0.1
Equity (Tables)
6 Months Ended
Jun. 30, 2018
Equity [Abstract]  
Schedule of Share-based Compensation Expense

Stock-based compensation expenses for equity-classified stock options and restricted stock units ("RSUs") were allocated as follows:

Three Months Ended Six Months Ended
June 30, June 30,
      2018       2017       2018       2017
U.S $ in thousands U.S $ in thousands
Cost of sales $      442 $      799 $      829 $      1,442
Research and development, net 938 1,089 1,680 1,938
Selling, general and administrative 2,898 3,443 5,184 5,855
Total stock-based compensation expenses $ 4,278 $ 5,331 $ 7,693 $ 9,235
Summary of Stock Options Activity

A summary of the Company’s stock option activity for the six months ended June 30, 2018 is as follows:

Weighted Average
      Number of Options       Exercise Price
Options outstanding as of January 1, 2018                   3,330,953 $                       31.53
Exercised (20,596 ) 16.23
Forfeited (397,069 ) 35.07
Options outstanding as of June 30, 2018 2,913,288 $ 31.16
Options exercisable as of June 30, 2018 1,436,409 $ 40.56
Summary of RSUs activity

A summary of the Company’s RSUs activity for the six months ended June 30, 2018 is as follows:

Weighted Average Grant
      Number of RSUs       Date Fair Value
Unvested RSUs outstanding as of January 1, 2018 302,163 $ 30.88
Granted 995,125 19.88
Forfeited (27,185 ) 41.04
Vested (74,984 ) 32.38
Unvested RSUs outstanding as of June 30, 2018            1,195,119 $ 21.05
Schedule of Accumulated other comprehensive income (loss)

The following tables present the changes in the components of accumulated other comprehensive income (loss), net of taxes, for the six months ended June 30, 2018 and 2017, respectively:

Six months ended June 30, 2018
Net unrealized gain Foreign currency
(loss) on cash flow translation
      hedges       adjustments       Total
U.S. $ in thousands
Balance as of January 1, 2018 $                         330 $                  (7,353 ) $      (7,023 )
Other comprehensive income (loss) before reclassifications (903 ) (1,306 ) (2,209 )
Amounts reclassified from accumulated other comprehensive loss 34 95 129
Other comprehensive loss (869 ) (1,211 ) (2,080 )
Balance as of June 30, 2018 $ (539 ) $ (8,564 ) $ (9,103 )
 
Six months ended June 30, 2017
Net unrealized gain Foreign currency
      (loss) on cash flow       translation      
Hedges adjustments Total
U.S. $ in thousands
Balance as of January 1, 2017 $                         (24 ) $                  (13,455 ) $       (13,479 )
Other comprehensive income (loss) before reclassifications 1,069 3,150 4,219
Amounts reclassified from accumulated other comprehensive loss (883 ) - (883 )
Other comprehensive income 186 3,150 3,336
Balance as of June 30, 2017 $ 162 $ (10,305 ) $ (10,143 )