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Net Income (Loss) per Share - Schedule of Potentially Dilutive Weighted Average Shares Excluded from Calculation of Diluted Net Income (Loss) per Share (Detail) - shares
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Stock Options [Member]    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Antidilutive securities excluded from computation of earnings per share, amount 5,448,133 121,381
Restricted Stock Units [Member]    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Antidilutive securities excluded from computation of earnings per share, amount 518,939 21,869
Performance Stock Units (PSUs) [Member]    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Antidilutive securities excluded from computation of earnings per share, amount 604,193