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Major exchange rates
 12 Months Ended
Dec. 31, 2025
Effects Of Changes In Foreign Exchange Rates [Abstract]  
Major exchange rates Major exchange rates
The following major exchange rates have been used in preparing the consolidated financial statements:
 closing ratesaverage rates
1 XXX = x,xxxx USDDecember 31, 2025December 31, 2024December 31, 2023202520242023
EUR1.1750 1.0389 1.1050 1.1200 1.0860 1.0797 
GBP1.3465 1.2529 1.2715 1.3124 1.2806 1.2408