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Stock-Based Compensation - Summary of Activity Relating to Restricted Stock Units (Detail) - shares
3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Granted, Shares 550,890 0
Outstanding, Shares at ending balance   1,014,488
Restricted Stock Units [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Outstanding, Shares at beginning balance   957,695
Granted, Shares   373,121
Vested, Shares   (218,017)
Forfeited, Shares   (98,311)
Outstanding, Shares at ending balance   1,014,488