Quarterly report pursuant to Section 13 or 15(d)

Equity - Summary of Authorized and Outstanding Equity (Detail)

v3.21.2
Equity - Summary of Authorized and Outstanding Equity (Detail) - shares
 6 Months Ended
Jun. 30, 2021
Mar. 31, 2021
Dec. 31, 2020
Jun. 30, 2020
Mar. 31, 2020
Dec. 31, 2019
Preferred shares            
Preferred stock, shares authorized 10,000,000   10,000,000      
Preferred stock, shares outstanding 0   0      
Class A Common Stock            
Common shares            
Common stock, shares authorized 50,000,000   50,000,000      
Common stock, shares outstanding 9,669,760 9,658,000 9,650,692 9,520,000 9,506,000 9,330,000
Common stock, voting rights one vote for each share          
Class B Common Stock            
Common shares            
Common stock, shares authorized 25,000,000   25,000,000      
Common stock, shares outstanding 4,781,844 4,770,000 4,721,646 4,852,000 4,855,000 5,031,000
Common stock, voting rights one vote for each share