Annual report pursuant to Section 13 and 15(d)

Equity - Summary of Authorized and Outstanding Equity (Detail)

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Equity - Summary of Authorized and Outstanding Equity (Detail) - shares
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
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 9,869,101 9,650,692
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 4,593,687 4,721,646
Common stock, voting rights one vote for each share