Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation - Schedule of Restricted Stock Units Activity (Details)

v3.19.3
Stock-Based Compensation - Schedule of Restricted Stock Units Activity (Details) - Restricted Stock Units (RSUs) [Member]
9 Months Ended
Sep. 30, 2019
$ / shares
shares
Restricted Stock Units  
Beginning balance | shares 1,494,111
Granted | shares 297,798
Vested and released | shares (709,537)
Forfeited | shares (60,395)
Ending balance | shares 1,021,977
Weighted Average Grant Date Fair Value  
Beginning balance | $ / shares $ 26.91
Granted | $ / shares 3.97
Vested and released | $ / shares 28.94
Forfeited | $ / shares 9.61
Ending balance | $ / shares $ 20.17