Equity (Tables)

3 Months Ended

Mar. 31, 2015

Schedule of Share-based Compensation Expense

	Three Months Ended
	March 31,
	2015		2014
	U.S. $ in thousands
Cost of sales	$	1,833	$	912
Research and development, net		1,868		938
Selling, general and administrative		6,059		4,886
Total stock-based compensation expenses	$	9,760	$	6,736

Summary of Stock Options Activity

			Weighted Average
	Number of Options		Exercise Price
Options outstanding as of January 1, 2015	1,719,241		$	43.89
Granted	-			-
Exercised	(91,528	)		22.13
Forfeited	(27,496	)		50.46
Options outstanding as of March 31, 2015	1,600,217		$	44.53
Options exercisable as of March 31, 2015	860,358		$	23.77

Summary of RSUs activity

			Weighted Average
	Number of RSUs		Grant Date Fair Value
RSUs outstanding as of January 1, 2015	667,498		$	94.19
Granted	52,460			76.38
Forfeited	(20,461	)		94.23
RSUs outstanding as of March 31, 2015	699,497		$	92.85

Schedule of Accumulated other comprehensive income (loss)

		Three months ended March 31, 2015
		Net unrealized gain			Foreign currency
		(loss) on cash flow			translation
		hedges			adjustments			Total
		U.S. $ in thousands
Balance as of January 1, 2015	$	(1,243	)	$	(2,404	)	$	(3,647	)
Other comprehensive income before
reclassifications		(728	)		(6,408	)		(7,136	)
Amounts reclassified from accumulated
other comprehensive income		1,108			-			1,108
Other comprehensive income (loss)		380			(6,408	)		(6,028	)
Balance as of March 31, 2015	$	(863	)	$	(8,812	)	$	(9,675	)

		Three months ended March 31, 2014
		Net unrealized gain			Foreign currency
		(loss) on cash flow			translation
		hedges			adjustments			Other			Total
		U.S. $ in thousands
Balance as of January 1, 2014	$	153		$	1,922		$	(167	)	$	1,908
Other comprehensive income before
reclassifications		(7	)		(398	)		-			(405	)
Amounts reclassified from accumulated
other comprehensive income		(121	)		-			167			46
Other comprehensive income (loss)		(128	)		(398	)		167			(359	)
Balance as of March 31, 2014	$	25		$	1,524		$	-		$	1,549