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Intangible assets (Tables)
 12 Months Ended
Dec. 31, 2022
Disclosure of detailed information about intangible assets [abstract]  
Schedule of breakdown of software cost, accumulated amortization, additions, sales and disposals for intangible assets
A breakdown of software cost, accumulated amortization, additions, sales and disposals of intangible assets is as follows:
Costs:
Balance as of January 1, 202014,401 
Additions1,311 
Disposals(1)
Balance as of December 31, 202015,711 
Additions353 
Disposals(6,278)
Balance as of December 31, 20219,786 
Additions1,070 
Balance as of December 31, 202210,856 
Accumulated amortization:
Balance as of January 1, 202012,974 
Amortization753 
Balance as of December 31, 202013,727 
Amortization742 
Disposals(6,278)
Balance as of December 31, 20218,191 
Amortization561 
Balance as of December 31, 20228,752 
Carrying amounts as of:
December 31, 20222,104 
December 31, 20211,595 
December 31, 20201,984