Earnings Per Share - Schedule of Potentially Issuable Common Shares not Included in Computation of Diluted Net Loss Per Share (Details) - shares shares in Thousands |
3 Months Ended | 9 Months Ended | ||
---|---|---|---|---|
Sep. 30, 2019 |
Sep. 30, 2018 |
Sep. 30, 2019 |
Sep. 30, 2018 |
|
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | ||||
Antidilutive common stock instruments outstanding (shares) | 10,179 | 8,248 | 10,179 | 8,248 |
Shares issuable upon the release of restricted stock awards | ||||
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | ||||
Antidilutive common stock instruments outstanding (shares) | 20 | 66 | 20 | 66 |
Shares issuable upon exercise of stock options | ||||
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | ||||
Antidilutive common stock instruments outstanding (shares) | 10,159 | 8,182 | 10,159 | 8,182 |