Share Capital - Additional Information (Details) - USD ($)			1 Months Ended		12 Months Ended
	Dec. 31, 2015	Oct. 07, 2015	Mar. 31, 2015	Feb. 28, 2015	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Aug. 31, 2015
Share Capital [Line Items]
Convertible preferred shares conversion ratio					100.00%
Voting rights of ordinary shareholder					one
Settlement agreement date					February 2015
Common stock, shares issued	83,778,581				83,778,581	13,431,414
Share-based Compensation Cost				$ 0
Warrants issued to purchase of preferred shares					975,644
Exercise price per share	$ 18.77				$ 18.77
Class of Warrant or Right, Date from which Warrants or Rights Exercisable					Jan. 31, 2016
Unrecognized compensation cost	$ 25,008,000				$ 25,008,000
Unrecognized compensation cost expected recognition weighted average period					3 years 4 months 21 days
Weighted average grant date fair values options granted					$ 10.64	$ 5.08	$ 4.59
Weighted average grant date fair values options unvested					$ 8.66	$ 4.26	$ 3.42
Weighted average grant date fair values options unvested amount	4,613,423				4,613,423	2,934,974	3,125,543
Weighted average grant date fair values options vested					$ 3.66	$ 2.89	$ 2.26
Weighted average grant date fair values options vested amount					1,235,880	1,166,974	1,030,933
Weighted average grant date fair values options forfeited and cancelled					$ 5.73	$ 3.59	$ 1.84
Aggregate intrinsic values options exercised					$ 3,546,000	$ 3,339,000	$ 3,431,000
Fair value of ordinary shares	$ 22.36				$ 22.36	$ 7.73	$ 7.28
2003 Plan
Share Capital [Line Items]
Option granted vesting period					4 years
Option granted expiration period					10 years
2013 Plan
Share Capital [Line Items]
Option granted vesting period					4 years
Option granted expiration period					10 years
Increase in shares authorized for issuance available for grants			13,198,224	2,956,500
Ordinary shares available for grants	0				0
2015 Plan
Share Capital [Line Items]
Option granted vesting period					4 years
Option granted expiration period					10 years
Increase in shares authorized for issuance available for grants	16,251,143				16,251,143			12,900,000
Ordinary shares available for grants	14,947,667				14,947,667
Percentage increase in number of shares available for issuance	4.00%
Condition One
Share Capital [Line Items]
Settlement agreement terms					(i) 18 months after signing of the Agreement, (ii) an IPO or (iii) the earlier of consummation of a merger/acquisition (“M&A”) or achievement of a Cumulative Net Sales milestone of $250,000 (as defined pursuant to the Agreement).
Condition Two
Share Capital [Line Items]
Settlement agreement terms					(i) achievement of the Cumulative Net Sales milestone per above or (ii) consummation of a merger or acquisition transaction
Settlement Agreement
Share Capital [Line Items]
Earlier Payment period after agreement				18 months
Net sales milestone				$ 250,000,000
Common stock, shares issued				1,005,210
Ordinary shares granted				1,005,210
Earlier Period for Option Termination				12 months
Stock redeemed or called during period, shares				2,010,420
Cash obligation			$ 2,000,000			$ 2,000,000
Settlement Agreement | General and Administrative
Share Capital [Line Items]
Settlement expense						$ 1,867,000
Settlement Agreement | Condition One
Share Capital [Line Items]
Settlement expense				$ 1,000,000
Settlement additional payment				1,000,000
Settlement additional amount paid				1,000,000
Settlement Agreement | Condition Two
Share Capital [Line Items]
Settlement additional payment				$ 5,500,000
Minimum
Share Capital [Line Items]
Entity listing value of share requirement for qualifying IPO in NYSE or NASDAQ					$ 50,000,000
Entity listing value of share requirement for qualifying IPO in other public stock exchange.					$ 100,000,000
Minimum | Settlement Agreement
Share Capital [Line Items]
Percentage of closing price per share			80.00%
ESPP
Share Capital [Line Items]
Increase in shares authorized for issuance available for grants	830,000				830,000
Ordinary shares available for grants	1,667,785				1,667,785
Percentage of increase in shares outstanding					1.00%
ESPP | Minimum
Share Capital [Line Items]
Increase in shares authorized for issuance available for grants	837,785				837,785
ESPP | Maximum
Share Capital [Line Items]
Increase in shares authorized for issuance available for grants	1,667,785				1,667,785
Ordinary Shares | IPO
Share Capital [Line Items]
Sale of ordinary shares		7,876,195
Proceeds from issuance of ordinary shares		$ 157,534,000
Series I Convertible Preferred shares
Share Capital [Line Items]
Shares issued	13,360,252				13,360,252
Shares issued, price per share	$ 14.53				$ 14.53
Proceeds from issuance of preferred shares, net					$ 191,738,000
Liquidation preference per share	$ 14.53				$ 14.53
Series J Convertible Preferred shares
Share Capital [Line Items]
Shares issued	4,068,500				4,068,500
Shares issued, price per share	$ 23.33				$ 23.33
Proceeds from issuance of preferred shares, net					$ 94,599,000
Liquidation preference per share	23.33				$ 23.33
Share issuance expenses					$ 319,000
Series A Convertible Preferred shares
Share Capital [Line Items]
Liquidation preference per share	1.52				$ 1.52
Series B Convertible Preferred shares
Share Capital [Line Items]
Liquidation preference per share	1.09				1.09
Series C Convertible Preferred shares
Share Capital [Line Items]
Liquidation preference per share	1.77				1.77
Series D Convertible Preferred shares
Share Capital [Line Items]
Liquidation preference per share	1.80				1.80
Series E Convertible Preferred shares
Share Capital [Line Items]
Liquidation preference per share	1.80				1.80
Series F Convertible Preferred shares
Share Capital [Line Items]
Liquidation preference per share	2.23				2.23
Series G Convertible Preferred shares
Share Capital [Line Items]
Liquidation preference per share	8.64				8.64
Series H Convertible Preferred shares
Share Capital [Line Items]
Liquidation preference per share	$ 13.5				$ 13.5