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Shareholders' Equity and Share Based Compensation - Additional Information (Detail)
$ / shares in Units, $ in Thousands
 3 Months Ended 6 Months Ended
Jan. 20, 2021
USD ($)
$ / shares
shares
Sep. 10, 2020
$ / shares
shares
Jun. 30, 2021
USD ($)
shares
Jun. 30, 2020
USD ($)
Jun. 30, 2021
USD ($)
shares
Jun. 30, 2020
USD ($)
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]            
Commencing date         May 26, 2021  
Terminating date         May 25, 2022  
Purchase of common shares     4,062,309   4,062,309  
Common shares purchase percentage         0.05  
Stock repurchased during period, shares     428,097      
Stock repurchased cost | $     $ 3,980   $ 3,980  
Shares issued in pubic offering, net of issuance costs (in shares) 10,887,097 9,396,226        
Purchase price | $ / shares $ 12.40          
Proceeds from issuance of common stock before placement agent fees and offering expense | $ $ 135,000          
Description of units sold   Each unit that was sold consisted of one common share of the Company and one-half (0.5) of a warrant to purchase a common share of the Company        
Class of warrant or right, exercise price of warrants or rights | $ / shares   $ 5.80        
Warrants exercisable beginning date   Mar. 10, 2021        
Warrants exercisable expiration date   Sep. 10, 2025        
Number of warrants exercised     3,188,680   3,188,680  
Share based compensation expense | $     $ 1,887 $ 328 $ 3,885 $ 857