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Share-Based Compensation - Additional Information (Detail) - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2023
Jun. 30, 2023
Jun. 30, 2022
Jun. 30, 2023
Jun. 30, 2022
Bit Access Plan [Member]          
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]          
Share-based payment arrangement, expense   $ 0.2 $ 0.3 $ 0.4 $ 0.6
Share-based payment arrangement, nonvested award, cost not yet recognized, amount $ 0.6 $ 0.6   $ 0.6  
Phantom Plan [Member]          
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]          
Share-based compensation arrangement by share-based payment award, shares issued in period 1,200        
Share-based compensation arrangement by share-based payment award, number of shares available for grant 15,000 15,000   15,000  
Deferred compensation share-based arrangements $ 0.4 $ 0.4   $ 0.4  
Percentage of share based compensation liability as part of share based compensation 50.00% 50.00%   50.00%  
Employee Stock Option [Member] | Bit Access Plan [Member]          
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]          
Share-based compensation arrangement by share-based payment award, award vesting period       2 years  
Share-based compensation arrangement by share-based payment award, expiration period       10 years  
Restricted Stock Units (RSUs) [Member] | Bit Access Plan [Member]          
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]          
Share-based compensation arrangement by share-based payment award, award vesting period       2 years  
Share-based compensation arrangement by share-based payment award, expiration period       10 years  
Common Class A [Member] | Incentive Plan [Member]          
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]          
Share-based compensation arrangement by share-based payment award, number of shares authorized 6,029,445 6,029,445   6,029,445  
Share-based compensation arrangement by share-based payment award, shares issued in period 500,000        
Share price $ 3.23 $ 3.23   $ 3.23  
Selling, General and Administrative Expenses [Member]          
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]          
Share-based payment arrangement, expense   $ 1.6   $ 1.6