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Earnings per share - Computations of basic and diluted earnings per share (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Jun. 30, 2023
Jun. 30, 2022
Earnings Per Share [Abstract]        
Net income (loss) for the computation of basic EPS $ 492,894 $ 339,826 $ 924,999 $ (1,661,004)
Weighted average ordinary shares outstanding - basic (in shares) 231,318,582 240,367,450 235,321,261 240,008,449
Basic earnings per share (in USD per share) $ 2.13 $ 1.41 $ 3.93 $ (6.92)
Weighted average ordinary shares outstanding - diluted (in shares) 232,866,512 242,264,561 237,204,222 240,008,449
Diluted earnings per share (in USD per share) $ 2.12 $ 1.40 $ 3.90 $ (6.92)