General information and significant accounting policies - Revenue recognition (Details)	12 Months Ended
Dec. 31, 2025
Pool Arrangements
Disclosure of attribution of expenses by nature to their function [line items]
Percentage lease revenue recognized as earned	100.00%

Operating Lease Income, Variable As Percentage Of Total

No definition available.

Name:	stng_OperatingLeaseIncomeVariableAsPercentageOfTotal
Namespace Prefix:	stng_
Data Type:	dtr-types1:percentItemType
Balance Type:	na
Period Type:	duration