SHARE INCENTIVE PLANS: (Tables)

12 Months Ended

Dec. 31, 2013

SHARE INCENTIVE PLANS:

Summary of share option awards activity under equity incentive plans

	Options Outstanding
	NumberofShares		WeightedAverageExercisePrice
Outstanding at December 31, 2010	5,434,974		$	10.56
Options granted	1,060,938		$	21.80
Options exercised	(1,586,577	)	$	8.83
Options canceled	(202,986	)	$	16.46
Outstanding at December 31, 2011	4,706,349		$	13.42
Options granted	879,160		$	70.72
Options exercised	(2,161,628	)	$	10.96
Options canceled	(137,959	)	$	28.33
Outstanding at December 31, 2012	3,285,922		$	29.74
Options granted	31,653		$	18.30
Options exercised	(376,588	)	$	14.08
Options canceled	(134,763	)	$	62.47
Outstanding at December 31, 2013	2,806,224		$	30.14

Schedule of options outstanding and exercisable by exercise price range

	Options Outstanding at				Options Exercisable at
	December 31, 2013				December 31, 2013
		Weighted
		Average	Weighted			Weighted
		Remaining	Average			Average
	Number	Contractual	Exercise		Number	Exercise
Range of Exercise Price	Outstanding	Life (Years)	Price		Exercisable	Price
$ 3.13 - $ 8.23	323,962	4.44	$	7.83	323,962	$	7.83
$ 8.45 - $ 9.19	286,867	3.51	$	9.04	286,867	$	9.04
$ 10.23 - $ 10.23	556,177	5.19	$	10.23	556,177	$	10.23
$10.50 - $ 18.87	295,314	5.63	$	14.43	273,517	$	14.27
$18.97 - $ 27.72	299,958	6.54	$	23.06	229,353	$	23.08
$29.03 - $34.00	312,905	7.54	$	31.22	175,519	$	31.08
$35.12 - $57.41	274,664	8.10	$	46.39	125,973	$	45.52
$66.07 - $66.07	162,188	8.44	$	66.07	62,250	$	66.07
$79.38 - $79.38	20,700	8.83	$	79.38	5,909	$	79.38
$101.37 - $101.37	273,489	8.39	$	101.37	95,126	$	101.37
$3.13 - $101.37	2,806,224	6.20	$	30.14	2,134,653	$	21.28

Summary of restricted share units activity

	Restricted Share Units Outstanding
	NumberofShares		WeightedAverageGrant DateFair Value
Non-vested restricted share units at December 31, 2010	414,945		$	19.86
Restricted share units granted	1,143,142		27.00
Restricted share units vested	(224,005	)	20.02
Restricted share units canceled	(142,409	)	24.97
Non-vested restricted share units at December 31, 2011	1,191,673		$	26.05
Restricted share units granted	1,110,230		42.88
Restricted share units vested	(480,150	)	24.65
Restricted share units canceled	(58,593	)	30.39
Non-vested restricted share units at December 31, 2012	1,763,160		$	36.29
Restricted share units granted	1,162,133		49.05
Restricted share units vested	(778,084	)	31.16
Restricted share units canceled	(172,755	)	42.49
Non-vested restricted share units at December 31, 2013	1,974,454		$	43.81

Summary of ordinary shares reserved for future issuance under equity incentive plans

	Number of Shares
Share options outstanding	2,806,224
Restricted share units outstanding	1,974,454
Share authorized for future issuance	1,236,003
ESPP shares available for future issuance	1,245,974
Total shares reserved for future issuance as of December 31, 2013	7,262,655

Schedule of weighted average assumptions used to value share options granted

	Employee ShareOptions			Employee SharePurchase Plan
	Year Ended December 31,			Year Ended December 31,
	2013	2012	2011	2013	2012	2011
Dividend yield, %	—	—	—	—	—	—
Expected volatility, %	57.5	56.6	55.9	56.18	68.05	41.8
Risk free interest rate, %	1.54	1.02	1.72	0.07	0.12	0.10
Expected life, years	4.72	6.25	6.25	0.53	0.53	0.53

Summary of the distribution of total share-based compensation expense

	Year Ended December 31,
	2013		2012		2011
	(in thousands)
Share-based compensation expense by caption:
Cost of goods sold	$	1,828	$	1,621	$	980
Research and development	25,956		19,356		11,906
Sales and marketing	9,198		8,055		4,894
General and administrative	8,156		5,987		3,632
Total share-based compensation expense	$	45,138	$	35,019	$	21,412
Share-based compensation expense by type of award:
Share options	$	12,460	$	14,104	$	12,568
ESPP	3,938		2,851		1,686
RSU	28,740		18,064		7,158
Total share-based compensation expense	$	45,138	$	35,019	$	21,412