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Income Taxes - Additional Information (Detail) - USD ($)
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Income Tax [Line Items]      
Statutory income tax rates 21.00% 21.00% 21.00%
Effective income tax rate 21.30% 22.90% 143.10%
Current income tax expense $ 374,000 $ 2,207,000 $ 422,000
Deferred tax assets and related tax benefits $ (11,300,000) (5,326,000) (2,395,000)
Intangible assets recognization period 15 years    
Net operating loss carryforwards $ 20,700,000 78,800,000  
Capital loss carryforward 21,600,000 20,200,000  
Capital loss carry forwards $ 4,546,000 4,241,000  
Operating loss carryforwards begin to expiration year 2038    
Capital loss carryforward begin to expiration year 2027    
Interest and penalties for uncertain tax positions $ 0 $ 0 $ 0
Liabilities for tax-related interest and penalties 0    
Intra-entity Intangible Sale      
Income Tax [Line Items]      
Current income tax expense 3,800,000    
Deferred tax assets and related tax benefits $ 3,800,000    
UNITED STATES      
Income Tax [Line Items]      
Statutory income tax rates 21.00%    
IRELAND | Non Trading Income      
Income Tax [Line Items]      
Statutory income tax rates 25.00%    
IRELAND | Capital Gain      
Income Tax [Line Items]      
Statutory income tax rates 33.00%    
IRELAND | Trading Income      
Income Tax [Line Items]      
Statutory income tax rates 12.50%