v3.26.1
Financial risk management - Fair value measurement - Assets and liabilities, measured at fair value (Details)
$ in Thousands
 12 Months Ended
Dec. 31, 2025
USD ($)
Dec. 31, 2024
USD ($)
Jan. 01, 2024
USD ($)
Financial risk management      
Fair value of financial assets $ 115,095 $ 91,020 $ 8,145
Fair value of financial liabilities 72,608 87,513 13,887
Transfer into level 3 0 0  
Transfer out of level 3 0 0  
Measured at FVTPL | Derivative financial instruments      
Financial risk management      
Fair value of financial liabilities 316 1,576 20
Measured at FVTPL | Collateral payables      
Financial risk management      
Fair value of financial liabilities 10,941    
Measured at FVTPL | Liabilities due to customers      
Financial risk management      
Fair value of financial liabilities 61,351 71,523 13,867
Measured at FVTPL | Collateral payables      
Financial risk management      
Fair value of financial liabilities   14,414  
Measured at FVTPL | Financial assets, FVPL      
Financial risk management      
Fair value of financial assets 23,273 264 257
Measured at FVTPL | Crypto assets loan receivables      
Financial risk management      
Fair value of financial assets 42,141 69,934 7,868
Measured at FVTPL | Derivative financial instruments      
Financial risk management      
Fair value of financial assets 316 1,576 20
Measured at FVTPL | Collateral receivable      
Financial risk management      
Fair value of financial assets 3,407 14,414  
Measured at FVTPL | Digital assets      
Financial risk management      
Fair value of financial assets $ 33,509 3,005  
Measured at FVTPL | Unlisted equity investment | DLOM | Minimum      
Financial risk management      
Significant estimates 0.25    
Measured at FVTPL | Unlisted equity investment | DLOM | Maximum      
Financial risk management      
Significant estimates 0.27    
Measured at FVTPL | Unlisted equity investment | Enterprise value to sales multiple | Minimum      
Financial risk management      
Significant estimates 0.051    
Measured at FVTPL | Unlisted equity investment | Enterprise value to sales multiple | Maximum      
Financial risk management      
Significant estimates 0.052    
Measured at amortized cost | USDC      
Financial risk management      
Fair value of financial assets $ 12,449 1,827  
Level 1      
Financial risk management      
Fair value of financial assets 91,166 88,992 7,868
Fair value of financial liabilities 72,292 85,937 13,867
Level 1 | Measured at FVTPL | Collateral payables      
Financial risk management      
Fair value of financial liabilities 10,941    
Level 1 | Measured at FVTPL | Liabilities due to customers      
Financial risk management      
Fair value of financial liabilities 61,351 71,523 13,867
Level 1 | Measured at FVTPL | Collateral payables      
Financial risk management      
Fair value of financial liabilities   14,414  
Level 1 | Measured at FVTPL | Financial assets, FVPL      
Financial risk management      
Fair value of financial assets 268    
Level 1 | Measured at FVTPL | Crypto assets loan receivables      
Financial risk management      
Fair value of financial assets 42,141 69,934 7,868
Level 1 | Measured at FVTPL | Collateral receivable      
Financial risk management      
Fair value of financial assets 3,407 14,414  
Level 1 | Measured at FVTPL | Digital assets      
Financial risk management      
Fair value of financial assets 32,901 2,817  
Level 1 | Measured at amortized cost | USDC      
Financial risk management      
Fair value of financial assets 12,449 1,827  
Level 2      
Financial risk management      
Fair value of financial assets 924 1,764 20
Fair value of financial liabilities 316 1,576 20
Level 2 | Measured at FVTPL | Derivative financial instruments      
Financial risk management      
Fair value of financial liabilities 316 1,576 20
Level 2 | Measured at FVTPL | Derivative financial instruments      
Financial risk management      
Fair value of financial assets 316 1,576 20
Level 2 | Measured at FVTPL | Digital assets      
Financial risk management      
Fair value of financial assets 608 188  
Level 3      
Financial risk management      
Fair value of financial assets 23,005 264 257
Level 3 | Measured at FVTPL | Financial assets, FVPL      
Financial risk management      
Fair value of financial assets $ 23,005 $ 264 $ 257