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Shareholders' Equity - Additional Information (Detail) - USD ($)
3 Months Ended
Dec. 04, 2019
Mar. 31, 2022
Mar. 31, 2021
Dec. 31, 2021
Feb. 10, 2016
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]          
Ordinary shares, shares authorized   50,000,000   50,000,000  
Ordinary shares, shares issued   13,115,026   13,115,026 5,000,053
Additional ordinary shares issued for convertible notes 8,114,977        
Ordinary shares, shares outstanding   13,115,026   13,115,026  
Number of shares granted   0 0    
Time-based Restricted Stock Unit          
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]          
Number of previously granted shares vested in period     1,564    
Share based compensation expense     $ 300,000    
Time-based Restricted Stock Unit | Special Cash Distribution          
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]          
Dividends cash   $ 8,800,000      
Performance-based Restricted Stock Unit          
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]          
Share based compensation expense   $ 0