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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
Mar. 31, 2020
Mar. 31, 2019
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Antidilutive common stock instruments outstanding (shares) 11,005 9,190
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) 154 30
Shares issuable upon exercise of stock options    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Antidilutive common stock instruments outstanding (shares) 10,851 9,160