Equity (Tables)
|
12 Months Ended |
Dec. 31, 2015 |
Schedule of Stock Option Activity |
|
|
|
|
Weighted Average |
|
|
Number of Options |
|
Exercise Price |
Options outstanding as of December 31, 2014 |
|
|
1,719,241 |
|
$ |
43.89 |
Granted |
|
|
1,020,951 |
|
|
32.78 |
Exercised |
|
|
(164,678) |
|
|
17.44 |
Forfeited |
|
|
(125,772) |
|
|
69.36 |
Options outstanding as of December 31, 2015 |
|
|
2,449,742 |
|
$ |
39.73 |
Options exercisable as of December 31, 2015 |
|
|
1,064,712 |
|
$ |
32.58 |
|
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 |
|
2015 |
|
Life in Years |
|
Price |
|
2015 |
|
Price |
$ |
2.21 |
- |
$ |
9.32 |
|
|
499,758 |
|
|
2.58 |
|
$ |
6.71 |
|
|
482,014 |
|
$ |
6.71 |
|
9.33 |
- |
|
29.53 |
|
|
598,957 |
|
|
6.21 |
|
|
22.49 |
|
|
242,928 |
|
|
17.97 |
|
29.54 |
- |
|
35.16 |
|
|
601,683 |
|
|
8.96 |
|
|
35.16 |
|
|
- |
|
|
- |
$ |
35.17 |
- |
$ |
120.51 |
|
|
749,344 |
|
|
6.27 |
|
|
79.19 |
|
|
339,770 |
|
|
79.71 |
|
|
|
|
|
|
|
2,449,742 |
|
|
6.16 |
|
$ |
39.73 |
|
|
1,064,712 |
|
$ |
32.58 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Aggregate intrinsic value (U.S. $ in thousands)
|
|
$ |
10,009 |
|
|
|
|
|
|
|
$ |
9,532 |
|
|
|
|
Summary of RSUs activity |
|
|
Number of RSUs
|
|
Weighted Average Grant Date Fair
|
Unvested RSUs outstanding as of December 31, 2014 |
|
|
660,101 |
|
$ |
94.15 |
Granted |
|
|
158,935 |
|
|
48.10 |
Vested |
|
|
(93,424) |
|
|
97.71 |
Forfeited |
|
|
(166,488) |
|
|
91.17 |
Unvested RSUs outstanding as of December 31, 2015 |
|
|
559,124 |
|
$ |
81.35 |
|
|
|
|
|
|
|
|
Schedule of Equity classified stock-based compensation |
|
2015 |
|
2014 |
|
2013 |
|
|
|
|
|
|
|
|
|
|
(U.S. $ in thousands) |
|
|
|
|
|
|
|
|
|
Cost of sales |
$ |
5,381 |
|
$ |
4,493 |
|
$ |
2,980 |
Research and development, net |
|
5,759 |
|
|
4,862 |
|
|
3,491 |
Selling, general and administrative |
|
18,870 |
|
|
20,852 |
|
|
17,791 |
Total stock-based compensation expenses |
$ |
30,010 |
|
$ |
30,207 |
|
$ |
24,262 |
|
Schedule of Accumulated other comprehensive income (loss) |
|
Year ended December 31, 2015 |
|
Net unrealized gain (loss) on cash flow hedges |
|
Foreign currency translation adjustments
|
|
Total |
|
(U.S. $ in thousands) |
Balance as of January 1, 2015 |
$ |
(1,243) |
|
$ |
(2,404) |
|
$ |
(3,647) |
Other comprehensive loss before |
|
|
|
|
|
|
|
|
reclassifications |
|
(288) |
|
|
(8,263) |
|
|
(8,551) |
Amounts reclassified from accumulated |
|
|
|
|
|
|
|
|
other comprehensive loss |
|
1,424 |
|
|
- |
|
|
1,424 |
Other comprehensive income (loss) |
|
1,136 |
|
|
(8,263) |
|
|
(7,127) |
Balance as of December 31, 2015 |
$ |
(107) |
|
$ |
(10,667) |
|
$ |
(10,774) |
|
|
|
|
|
|
|
|
|
|
|
|
|
Year ended December 31, 2014
|
|
Net unrealized gain (loss) on cash flow hedges
|
|
Foreign currency translation adjustments
|
|
Other |
|
Total |
|
(U.S. $ in thousands)
|
Balance as of January 1, 2014 |
$ |
153 |
|
$ |
1,922 |
|
$ |
(167) |
|
$ |
1,908 |
Other comprehensive income before |
|
|
|
|
|
|
|
|
|
|
|
reclassifications
|
|
(2,222) |
|
|
(4,326) |
|
|
|
|
|
(6,548) |
Amounts reclassified from accumulated |
|
|
|
|
|
|
|
|
|
|
|
other comprehensive income |
|
826 |
|
|
|
|
|
167 |
|
|
993 |
Other comprehensive income (loss) |
|
(1,396) |
|
|
(4,326) |
|
|
167 |
|
|
(5,555) |
Balance as of December 31, 2014 |
$ |
(1,243) |
|
$ |
(2,404) |
|
$ |
|
|
$ |
(3,647) |
|
Stock Options [Member] |
|
Schedule of Stock Option Assumptions |
|
2015 |
|
2014 |
|
2013 |
Risk-free interest rate |
|
1.6% - 1.9% |
|
|
1.3% - 2.0% |
|
|
1.4% - 1.7% |
Expected option term (years) |
|
6.0 |
|
|
4.2 - 6.5
|
|
|
5.1 - 5.2
|
Expected share price volatility |
|
50.1% - 53.5% |
|
|
45.8% - 47.6% |
|
|
56% - 57%
|
Dividend yield |
|
- |
|
|
- |
|
|
- |
Weighted average grant date fair value
|
$ |
15.49 |
|
$ |
60.82 |
|
$ |
40.94 |
|