CONDENSED INTERIM STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Over-Allotment	[1]	Series J Preferred Stock	[2]	Ordinary Shares	Ordinary Shares Over-Allotment	Preferred Shares	Preferred Shares Series J Preferred Stock	Additional Paid-in Capital	Additional Paid-in Capital Over-Allotment	[1]	Additional Paid-in Capital Series J Preferred Stock	[2]	Accumulated Other Comprehensive Loss	Accumulated Deficit
Balance at Dec. 31, 2014	$ 97,875									$ 374,375						$ (276,500)
Balance (in shares) at Dec. 31, 2014						13,431,414		58,676,017
Share-based compensation to employees	11,860									11,860
Exercise of options and warrants	2,038									2,038
Exercise of options and warrants (in shares)						731,665
Issuance of shares, net		$ 157,534		$ 94,599							$ 157,534		$ 94,599
Issuance of shares, net (in shares)							7,876,195		4,068,500
Issuance of shares and options in respect of settlement, net of fair value of shares provided as indemnification (in shares)						(1,005,210)
Conversion of preferred shares to ordinary shares						62,744,517		(62,744,517)
Other comprehensive loss, net of tax benefit	(1,505)														$ (1,505)
Net loss	(111,581)															(111,581)
Balance at Dec. 31, 2015	250,820									640,406					(1,505)	(388,081)
Balance (in shares) at Dec. 31, 2015						83,778,581
Share-based compensation to employees	5,456									5,456
Exercise of options and warrants	57									57
Exercise of options and warrants (in shares)						648,139
Other comprehensive loss, net of tax benefit	(470)														(470)
Net loss	(35,437)															(35,437)
Balance at Mar. 31, 2016	$ 220,426									$ 645,919					$ (1,975)	$ (423,518)
Balance (in shares) at Mar. 31, 2016						84,426,720

[1] Net of issuance expenses (including underwriter fees) of $15,742

[2] Net of issuance expenses of $319