Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies - Loss per share (Details)

v3.8.0.1
Summary of Significant Accounting Policies - Loss per share (Details) - USD ($)
$ in Thousands
6 Months Ended 12 Months Ended
Dec. 31, 2015
Dec. 31, 2017
Dec. 31, 2016
Jun. 30, 2015
Numerator for basic and diluted loss per share        
Net loss $ (23,000) $ (70,138) $ (71,579) $ (22,058)
Deemed dividend on convertible preferred shares       (14,735)
Net loss attributable to shareholders used for basic (23,000) (70,138) (71,579) (36,793)
Net loss attributable to shareholders used for diluted $ (23,000) $ (70,138) $ (71,579) $ (36,793)
Denominator for basic and diluted loss per share        
Weighted average number of shares used to calculate basic and diluted loss per share (in shares) 424,711,900 527,637,086 424,713,997 214,704,593