XML 53 R62.htm IDEA: XBRL DOCUMENT v3.19.3
Stock compensation - Option activity (Details) - Stock Options - $ / shares
1 Months Ended 6 Months Ended 9 Months Ended
Jul. 31, 2016
Jun. 30, 2016
Sep. 30, 2019
Shares Subject to Outstanding Options, Shares      
Outstanding at the beginning of the period (in shares)     12,285,159
Options granted (in shares)     3,334,747
Options exercised (in shares)     (1,506,665)
Options cancelled (in shares)     (671,712)
Outstanding at the end of the period (in shares)     13,441,529
Shares Subject to Outstanding Options, Weighted Average Exercise Price      
Outstanding at the beginning of the period (in dollars per share)     $ 74.39
Options granted (in dollars per share)     76.37
Options exercised (in dollars per share)     28.22
Options cancelled (in dollars per share)     90.93
Outstanding at the end of the period (in dollars per share)     $ 79.23
Termination period 10 years 7 years  
Vesting period 4 years 3 years  
Vesting after one year      
Shares Subject to Outstanding Options, Weighted Average Exercise Price      
Vesting period 1 year 1 year  
Vesting Percentage 25.00% 33.00%  
Remainder vesting      
Shares Subject to Outstanding Options, Weighted Average Exercise Price      
Vesting period 36 months 24 months