Quarterly report pursuant to Section 13 or 15(d)

Equity Incentive Plans - Schedule of Stock Option Activity (Details)

v3.10.0.1
Equity Incentive Plans - Schedule of Stock Option Activity (Details) - 2005 Plan and 2017 Plan
9 Months Ended
Sep. 30, 2018
$ / shares
shares
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]  
Number of Options Outstanding, Beginning Balance | shares 1,294,128
Number of Options Outstanding, Granted | shares 140,746
Number of Options Outstanding, Exercised | shares (591,038)
Number of Options Outstanding, Canceled | shares (19,355)
Number of Options Outstanding, Ending Balance | shares 824,481
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]  
Weighted Average Exercise Price, Beginning Balance | $ / shares $ 1.79
Weighted Average Exercise Price, Granted | $ / shares 33.82
Weighted Average Exercise Price, Exercised | $ / shares 0.88
Weighted Average Exercise Price, Canceled | $ / shares 5.34
Weighted Average Exercise Price, Ending Balance | $ / shares $ 7.83