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Stockholders' Equity - Stock Repurchase Plan - Additional Information (Detail) - USD ($)
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Feb. 28, 2019
Feb. 29, 2016
2019 Stock Incentive Plan        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Common stock reserved for issuance (in shares)     6,000,000.0  
Shares available for grant under the plan (in shares) 2,100,000      
2016 Stock Incentive Plan        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Outstanding common stock repurchase program authorized amount (up to)       $ 50,000,000.0
Shares repurchased during period (in shares) 0 0    
Remaining authorized repurchase amount $ 16,300,000