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Consolidated shareholders’ equity - Summary of Treasury Shares Held (Details) - shares
shares in Thousands
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Share Capital, Reserves And Other Equity Interest [Abstract]        
Number of shares (in shares) 8,200 11,020 8,280 20
% of share capital for the period 0.65% 0.872% 0.658% 0.002%