Annual report pursuant to Section 13 and 15(d)

Share based compensation - Option Activity (Details)

v3.8.0.1
Share based compensation - Option Activity (Details) - USD ($)
$ / shares in Units, $ in Thousands
6 Months Ended 12 Months Ended
Dec. 31, 2015
Dec. 31, 2017
Dec. 31, 2016
Jun. 30, 2015
Options        
Outstanding at the beginning of the period (in shares)   49,237,290    
Granted (in shares) 0 29,924,787 19,404,373 21,779,577
Exercised (in shares) 0 (1,142,904) (63,192) 0
Forfeited (in shares)   (3,075,506)    
Outstanding at the end of the period (in shares)   74,943,667 49,237,290  
Weighted Average Exercise Price Per Option        
Outstanding at the beginning of the period (in dollars per share)   $ 0.58    
Granted (in dollars per share)   0.62    
Exercised (in dollars per share)   0.19    
Forfeited (in dollars per share)   1.04    
Outstanding at the end of the period (in dollars per share)   $ 0.58 $ 0.58  
Additional disclosures        
Outstanding - Average Remaining Contractual Term (Years)   7 years 10 months 24 days    
Outstanding - Aggregate Intrinsic Value   $ 84,989    
Exercisable - Options   31,449,602    
Exercisable - Weighted Average Exercise Price Per Option   $ 0.51    
Exercisable - Average Remaining Contractual Term (Years)   6 years 9 months 18 days    
Exercisable - Aggregate Intrinsic Value   $ 35,665