Other current liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Other Liabilities Disclosure [Abstract]
Derivative liabilities	$ 16,927	$ 19,450
Contract liabilities (Note 6)	121,361	65,287
Income tax payable	72,764	54,040
Due to affiliates	6,691	9,579
Winter sub-charter liability	0	49,400
Liabilities held for sale (Note 11)	8,808	0
Other current liabilities	22,274	30,195
Total other current liabilities	$ 248,825	$ 227,951