Significant events (Details) $ / shares in Units, $ in Thousands				3 Months Ended		6 Months Ended
	May 25, 2026 $ / shares	Feb. 24, 2026 $ / shares	Jan. 07, 2026 USD ($) vessel T	Sep. 30, 2026 USD ($)	Jun. 30, 2026 USD ($) T	Jun. 30, 2026 USD ($) T	Jun. 22, 2026 vessel	May 31, 2026 T	Apr. 27, 2026 T	Apr. 08, 2026 T	Mar. 26, 2026 T	Mar. 23, 2026 T	Feb. 09, 2026 T	Feb. 04, 2026 vessel T	Jan. 13, 2026 T	Jan. 12, 2026 T
Disclosure of detailed information about property, plant and equipment [line items]
Dividends recognised as distributions to owners per share (in usd per share) \| $ / shares	$ 0.64
Dividends paid, ordinary shares per share (in usd per share) \| $ / shares	0.20	$ 0.16
Dividends paid, other shares per share (in usd per share) \| $ / shares	$ 0.44
Ammonia-powered container vessel \| Right-of-use assets \| Agreement with Fortescue \| Maximum
Disclosure of detailed information about property, plant and equipment [line items]
Number of vessels chartered \| vessel							12
Vessels \| Daishan, Hirado, Hojo, Dia, Antigone, Aegean, Golden Magnum and Belgravia
Disclosure of detailed information about property, plant and equipment [line items]
Gain \| $			$ 267,400
Vessels \| Daishan, Hirado, Hojo, Dia, Antigone, Aegean, Golden Magnum and Belgravia \| Property, plant and equipment
Disclosure of detailed information about property, plant and equipment [line items]
Number of vessels sold \| vessel			8
Vessels \| Daishan, Hirado, Hojo, Dia, Antigone and Aegean \| Property, plant and equipment
Disclosure of detailed information about property, plant and equipment [line items]
Number of vessels sold \| vessel			6
Vessels \| Daishan - Sale \| Property, plant and equipment
Disclosure of detailed information about property, plant and equipment [line items]
Gain \| $						$ 26,521
Property plant and equipment, boat carrying capacity			306,005
Vessels \| Hirado - Sale \| Property, plant and equipment
Disclosure of detailed information about property, plant and equipment [line items]
Gain \| $						35,826
Property plant and equipment, boat carrying capacity			302,550
Vessels \| Hojo - Sale \| Property, plant and equipment
Disclosure of detailed information about property, plant and equipment [line items]
Gain \| $						36,123
Property plant and equipment, boat carrying capacity			302,965
Vessels \| Dia - Sale \| Property, plant and equipment
Disclosure of detailed information about property, plant and equipment [line items]
Gain \| $						54,601
Property plant and equipment, boat carrying capacity			299,999
Vessels \| Antigone - Sale \| Property, plant and equipment
Disclosure of detailed information about property, plant and equipment [line items]
Gain \| $						49,192
Property plant and equipment, boat carrying capacity			299,421
Vessels \| Aegean - Sale \| Property, plant and equipment
Disclosure of detailed information about property, plant and equipment [line items]
Gain \| $						57,039
Property plant and equipment, boat carrying capacity			299,999
Vessels \| Golden Magnum - Sale \| Property, plant and equipment
Disclosure of detailed information about property, plant and equipment [line items]
Gain \| $						4,449
Property plant and equipment, boat carrying capacity			179,790
Vessels \| Belgravia - Sale \| Property, plant and equipment
Disclosure of detailed information about property, plant and equipment [line items]
Gain \| $						3,604
Property plant and equipment, boat carrying capacity			169,390
Vessels \| VLCC Eburones \| Property, plant and equipment
Disclosure of detailed information about property, plant and equipment [line items]
Property plant and equipment, boat carrying capacity																319,000
Vessels \| Bochem Callao \| Property, plant and equipment
Disclosure of detailed information about property, plant and equipment [line items]
Property plant and equipment, boat carrying capacity															25,000
Vessels \| Ingrid - Sale \| Property, plant and equipment
Disclosure of detailed information about property, plant and equipment [line items]
Gain \| $						49,554
Property plant and equipment, boat carrying capacity													314,000	314,000
Vessels \| Ilma - Sale \| Property, plant and equipment
Disclosure of detailed information about property, plant and equipment [line items]
Gain \| $						48,610
Property plant and equipment, boat carrying capacity													314,000	314,000
Vessels \| Ingrid and Ilma \| Property, plant and equipment
Disclosure of detailed information about property, plant and equipment [line items]
Number of vessels sold \| vessel														2
Gain \| $					$ 98,200
Vessels \| VLCC Menapii \| Property, plant and equipment
Disclosure of detailed information about property, plant and equipment [line items]
Property plant and equipment, boat carrying capacity												319,000
Vessels \| Sienna - Sale \| Property, plant and equipment
Disclosure of detailed information about property, plant and equipment [line items]
Gain \| $					$ 29,200	$ 29,195
Property plant and equipment, boat carrying capacity											150,205
Vessels \| Suezmax Cap Grace \| Property, plant and equipment
Disclosure of detailed information about property, plant and equipment [line items]
Property plant and equipment, boat carrying capacity										156,000
Vessels \| Suezmax Cap Joseph \| Property, plant and equipment
Disclosure of detailed information about property, plant and equipment [line items]
Property plant and equipment, boat carrying capacity									156,000
Vessels \| Newcastlemax Mineral Latvija \| Property, plant and equipment
Disclosure of detailed information about property, plant and equipment [line items]
Property plant and equipment, boat carrying capacity								210,000
Vessels \| Newcastlemax Mineral Eesti \| Property, plant and equipment
Disclosure of detailed information about property, plant and equipment [line items]
Property plant and equipment, boat carrying capacity								210,000
Vessels \| Newcastlemax Mineral Magyar \| Property, plant and equipment
Disclosure of detailed information about property, plant and equipment [line items]
Property plant and equipment, boat carrying capacity					210,000	210,000
Vessels \| Newcastlemax Mineral Lietuva \| Property, plant and equipment
Disclosure of detailed information about property, plant and equipment [line items]
Property plant and equipment, boat carrying capacity					210,000	210,000
Vessels \| VLCC Morini \| Property, plant and equipment
Disclosure of detailed information about property, plant and equipment [line items]
Property plant and equipment, boat carrying capacity					319,000	319,000
Vessels \| Suezmax Brest \| Property, plant and equipment
Disclosure of detailed information about property, plant and equipment [line items]
Property plant and equipment, boat carrying capacity					156,851	156,851
Vessels \| Suezmax Brugge \| Property, plant and equipment
Disclosure of detailed information about property, plant and equipment [line items]
Property plant and equipment, boat carrying capacity					156,851	156,851
Vessels \| Suezmax Brest and Suezmax Brugge \| Property, plant and equipment \| Other disposals of assets \| Forecast
Disclosure of detailed information about property, plant and equipment [line items]
Gain \| $				$ 100,200