Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity - Additional Information (Detail)

v3.21.1
Stockholders' Equity - Additional Information (Detail) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Dec. 31, 2019
Mar. 08, 2019
Dec. 31, 2020
Jul. 31, 2020
Jul. 13, 2020
Mar. 11, 2019
Class of Stock [Line Items]            
Common Stock, Value, Registered For Issuance         $ 200,000  
Preferred stock, shares authorized 10,000,000   10,000,000      
Common stock, shares authorized 100,000,000   200,000,000      
Common stock, shares issued 68,882,459 8,000,000 68,946,092     1,200,000
Common stock offering price   $ 12.50        
Net proceeds from public offering $ 107,746 $ 107,700        
ATM Offering [Member]            
Class of Stock [Line Items]            
Common Stock, Value, Registered For Issuance       $ 200,000    
Common stock value subscribed       $ 75,000 $ 75,000