v3.26.1
Note 16 - Capital Management (Details Textual) - USD ($)
 1 Months Ended 3 Months Ended 12 Months Ended 22 Months Ended
Mar. 15, 2026
Jan. 14, 2026
Jun. 30, 2018
Dec. 31, 2025
Jul. 31, 2025
Jan. 31, 2024
Jun. 30, 2023
Jan. 31, 2023
Mar. 25, 2026
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Nov. 30, 2023
Feb. 26, 2026
Jan. 31, 2022
Disclosure of objectives, policies and processes for managing capital [line items]                              
Dividends proposed or declared before financial statements authorised for issue but not recognised as distribution to owners per share (in dollars per share)       $ 0.4                      
Dividends, per share         $ 0.4 $ 0.4 $ 0.4 $ 0.8   $ 0.8 $ 0.8 $ 1.2      
Dividend payables         $ 71,200,000 $ 70,400,000 $ 36,000,000 $ 71,300,000              
Dividends recognised as distributions to owners               12,300,000   $ 71,167,000 $ 70,398,000 $ 107,222,000      
Payments to acquire or redeem entity's shares                   0 0 32,695,000      
Treasury shares       $ 238,815,000           238,815,000 238,815,000        
Capital reserved for investments in marketable securities       70,000           $ 70,000          
Net gain prior to termination                       3,200,000      
Cumulative net gain related to marketable securities               34,200,000              
Treasury shares [member]                              
Disclosure of objectives, policies and processes for managing capital [line items]                              
Dividends recognised as distributions to owners                       0      
Kunlun and Keeneyes Future Holding [member]                              
Disclosure of objectives, policies and processes for managing capital [line items]                              
Dividend payables               $ 59,000,000              
Kunlun Tech Limited [member]                              
Disclosure of objectives, policies and processes for managing capital [line items]                              
Dividends recognised as distributions to owners                     $ 33,000,000 $ 25,100,000      
Potential ordinary share transactions [member]                              
Disclosure of objectives, policies and processes for managing capital [line items]                              
Dividends proposed or declared before financial statements authorised for issue but not recognised as distribution to owners per share (in dollars per share)   $ 0.4                          
Share repurchase program, authorized amount                           $ 300,000,000  
ADS [member]                              
Disclosure of objectives, policies and processes for managing capital [line items]                              
Dividends, per share                   $ 0.8 $ 0.8 $ 1.2      
Share repurchase program, maximum authorized amount                             $ 50,000,000
Number of shares repurchased during period (in shares)     36,971,296             0 0 2,765,346 6,119,841    
Payments to acquire or redeem entity's shares     $ 239,000,000             $ 0 $ 0 $ 32,695,000 $ 50,000,000    
Treasury shares       $ 1,600,107,000           $ 1,600,107,000          
ADS [member] | Potential ordinary share transactions [member]                              
Disclosure of objectives, policies and processes for managing capital [line items]                              
Share repurchase program, authorized amount                           $ 300,000,000  
Number of shares repurchased during period (in shares) 229,856               97,335            
Ordinary shares [member] | Potential ordinary share transactions [member] | Kunlun Tech Limited [member]                              
Disclosure of objectives, policies and processes for managing capital [line items]                              
Number of shares repurchased during period (in shares) 485,874