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Income Taxes - Narrative (Details)
$ in Millions, $ in Millions
 12 Months Ended
Dec. 31, 2024
HKD ($)
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2024
USD ($)
Income Tax Contingency [Line Items]        
Effective income tax rate (0.66%) (0.49%) (0.55%)  
Operating loss carryforwards       $ 278.1
Hong Kong        
Income Tax Contingency [Line Items]        
Effective income tax rate for first HK$2 million 8.25%      
Effective income tax rate for remaining income 16.50%      
Limit for reduced income tax rate $ 2      
Domestic Tax Authority | United States | Agora Lab, Inc.        
Income Tax Contingency [Line Items]        
Operating loss carryforwards       23.2
State and Local Jurisdiction | United States | Agora Lab, Inc.        
Income Tax Contingency [Line Items]        
Operating loss carryforwards       $ 23.1