Annual report pursuant to Section 13 and 15(d)

Share-based compensation - Options (Details)

v3.6.0.2
Share-based compensation - Options (Details) - $ / shares
2 Months Ended 6 Months Ended 12 Months Ended
Mar. 08, 2017
Dec. 31, 2015
Dec. 31, 2016
Jun. 30, 2015
Jun. 30, 2014
Share-based compensation          
Number of options granted (in shares) 15,543,040 0 19,404,373 21,779,577 5,627,700
Weighted average fair value (in dollars per share)     $ 0.74 $ 0.64 $ 0.13