Quarterly report pursuant to Section 13 or 15(d)

Earnings (loss) per share - Antidilutive Securities (Details)

v3.5.0.2
Earnings (loss) per share - Antidilutive Securities (Details) - shares
3 Months Ended 9 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Share options        
Antidilutive securities        
Potentially dilutive equity instruments excluded from the diluted loss per share (in shares) 47,392,118 31,432,048 44,951,407 27,541,366