LOSS PER SHARE (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Numerator:    
Net loss $ (30,657) $ (24,354)
Denominator:    
Weighted average number of ordinary shares outstanding 148,089 143,358
Shares used in calculating diluted loss per share 148,089 143,358