Financial - risk management objectives and policies - Financial Position (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Financial - risk management objectives and policies
Leases	$ 7,473	$ 10,320
Less: cash and short-term deposits	$ (478,435)	$ (219,790)	$ (253,918)	$ (376,999)

The amount of cash on hand and demand deposits, along with short-term, highly liquid investments that are readily convertible to known amounts of cash and that are subject to an insignificant risk of changes in value. [Refer: Cash; Cash equivalents]

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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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