v3.26.3
Segment reporting - Schedule of operating segments (Details) - USD ($)
$ in Thousands
 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Disclosure of operating segments [line items]      
Revenue $ 1,223,573 $ 622,852  
Profit (loss) before income tax 735,199 35,629  
Vessels 6,875,419   $ 6,323,773
Assets under construction 532,660   739,373
Other non-current assets 500,790   429,872
Assets held for sale 219,985   363,097
Other current assets 699,035   549,459
Non-current liabilities 4,887,666   4,721,438
Current liabilities 819,229   1,060,816
Operating segments | Marine      
Disclosure of operating segments [line items]      
Revenue 1,222,685 621,970  
Profit (loss) before income tax 718,855 75,648  
Vessels 6,875,239   6,323,520
Assets under construction 525,998   738,297
Other non-current assets 266,316   264,644
Assets held for sale 219,985   363,097
Other current assets 1,366,362   1,194,882
Non-current liabilities 4,754,012   4,713,328
Current liabilities 1,167,584   2,346,158
Operating segments | Euronav      
Disclosure of operating segments [line items]      
Revenue 372,625 263,184  
Profit (loss) before income tax 539,424 149,565  
Vessels 1,360,841   1,121,450
Assets under construction 35,887   191,167
Other non-current assets 63,667   64,066
Assets held for sale 194,819   292,965
Other current assets 190,488   166,033
Non-current liabilities 1,068,092   1,162,776
Current liabilities 344,246   1,565,032
Operating segments | Bocimar      
Disclosure of operating segments [line items]      
Revenue 746,794 292,397  
Profit (loss) before income tax 156,698 (51,021)  
Vessels 4,731,683   4,518,624
Assets under construction 241,505   319,806
Other non-current assets 190,641   186,162
Assets held for sale 25,166   70,132
Other current assets 1,109,959   972,093
Non-current liabilities 3,160,736   3,076,121
Current liabilities 355,125   367,514
Operating segments | Delphis      
Disclosure of operating segments [line items]      
Revenue 21,668 21,571  
Profit (loss) before income tax 5,739 5,064  
Vessels 205,450   210,530
Assets under construction 10,608   5,147
Other non-current assets 0   0
Assets held for sale 0   0
Other current assets 966   1,375
Non-current liabilities 135,039   137,801
Current liabilities 16,606   19,649
Operating segments | Bochem      
Disclosure of operating segments [line items]      
Revenue 31,416 23,357  
Profit (loss) before income tax 6,122 1,600  
Vessels 312,680   276,374
Assets under construction 62,401   62,112
Other non-current assets 0   0
Assets held for sale 0   0
Other current assets 12,115   9,229
Non-current liabilities 119,844   101,218
Current liabilities 254,420   239,687
Operating segments | Windcat      
Disclosure of operating segments [line items]      
Revenue 50,182 21,461  
Profit (loss) before income tax 10,872 (29,560)  
Vessels 264,585   196,542
Assets under construction 175,597   160,065
Other non-current assets 12,008   14,416
Assets held for sale 0   0
Other current assets 52,834   46,152
Non-current liabilities 270,301   235,412
Current liabilities 197,187   154,276
Operating segments | Other      
Disclosure of operating segments [line items]      
Revenue 888 882  
Profit (loss) before income tax 16,344 (42,410)  
Vessels 180   253
Assets under construction 6,662   1,076
Other non-current assets 234,474   165,228
Assets held for sale 0   0
Other current assets 199,242   1,038,580
Non-current liabilities 133,654   17,544
Current liabilities 518,214   389,227
Less: Elimination      
Disclosure of operating segments [line items]      
Revenue 0 0  
Profit (loss) before income tax 0 $ 2,391  
Vessels 0   0
Assets under construction 0   0
Other non-current assets 0   0
Assets held for sale 0   0
Other current assets (866,569)   (1,684,003)
Non-current liabilities 0   (9,434)
Current liabilities $ (866,569)   $ (1,674,569)