Statements of Changes in Shareholders' Equity - USD ($) $ in Thousands		Total	Over-Allotment	[3]	Series I Preferred Stock	Series J Preferred Stock	[4]	Ordinary Shares	Ordinary Shares Over-Allotment	Preferred Shares	Preferred Shares Series I Preferred Stock	Preferred Shares Series J Preferred Stock	Additional Paid-in Capital	Additional Paid-in Capital Over-Allotment	[3]	Additional Paid-in Capital Series I Preferred Stock	Additional Paid-in Capital Series J Preferred Stock	[4]	Accumulated Other Comprehensive Loss	Accumulated Deficit
Balance at Dec. 31, 2012		$ 49,425											$ 167,873							$ (118,448)
Balance (in shares) at Dec. 31, 2012								11,419,786		45,315,765
Share-based compensation to employees		5,120											5,120
Exercise of options and warrants		2											2
Exercise of options and warrants (in shares)								471,635
Issuance of shares, net	[1]				$ 191,738											$ 191,738
Issuance of shares, net (in shares)											13,360,252
Issuance of warrants, net	[2]	2,864											2,864
Net loss		(77,370)																		(77,370)
Balance at Dec. 31, 2013		171,779											367,597							(195,818)
Balance (in shares) at Dec. 31, 2013								11,891,421		58,676,017
Share-based compensation to employees		4,624											4,624
Exercise of options and warrants		2,154											2,154
Exercise of options and warrants (in shares)								1,539,993
Net loss		(80,682)																		(80,682)
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 of $165		(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

[1] Net of issuance expenses of $2,440

[2] Net of issuance expenses of $115

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

[4] Net of issuance expenses of $319