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Subsequent Event - Additional Information (Detail) - shares
Jul. 24, 2020
Jun. 30, 2020
Dec. 31, 2019
Subsequent Event [Line Items]      
Common stock, shares authorized   50,000,000 50,000,000
Total shares, authorized   60,000,000  
Subsequent Event      
Subsequent Event [Line Items]      
Common stock, shares authorized 200,000,000    
Total shares, authorized 210,000,000