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Current and long-term debt - 2021 CMBFL lease financing (Details) | 1 Months Ended | 2 Months Ended |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Mar. 31, 2021 | Mar. 31, 2021 USD ($) | Dec. 31, 2023 USD ($) | Jul. 31, 2023 | Dec. 31, 2022 USD ($) | Apr. 30, 2021 USD ($) vessel | Mar. 30, 2021 USD ($)
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |
Borrowings |  |  | $ 1,588,290,000 |  | $ 1,436,224,000 |  |
Finance Lease - CMBFL Lease Financing 2021 |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |
Borrowings, bareboat charter term | 7 years |  |  |  |  |  |
Net debt to capitalization ratio |  | 0.60 |  |  |  |  |
Consolidated tangible net worth |  | $ 1,000,000,000 |  |  |  |  |
Cumulative positive net income |  | 25.00% |  |  |  |  |
Net proceeds of equity issuance |  | 50.00% |  |  |  |  |
Minimum ratio for fair value of vessels |  | 120.00% |  |  |  |  |
Borrowings |  |  | $ 61,500,000 |  | $ 68,000,000 |  |
Finance Lease - CMBFL Lease Financing 2021 | Consolidated Liquidity Requirement - Scenario One |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |
Covenant liquidity requirement amount |  |  |  |  |  | $ 25,000,000 |
Finance Lease - CMBFL Lease Financing 2021 | Consolidated Liquidity Requirement - Scenario Two |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |
Consolidated liquidity requirement per each owned vessel |  |  |  |  |  | 500,000 |
Consolidated liquidity requirement per each chartered-in vessel |  |  |  |  |  | $ 250,000 |
Finance Lease - CMBFL Lease Financing 2021 | Handymax | Secured Overnight Financing Rate (SOFR) |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |
Adjustment to interest rate basis |  |  |  | 3.25% |  |  |
Finance Lease - CMBFL Lease Financing 2021 | MR | Secured Overnight Financing Rate (SOFR) |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |
Adjustment to interest rate basis |  |  |  | 3.20% |  |  |
STI Comandante, STI Brixton, STI Pimlico and STI Finchley | Finance Lease - CMBFL Lease Financing 2021 | Vessels | Handymax |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |
Number of vessels under finance lease arrangements | vessel |  |  |  |  |  | 4 |
Borrowings |  |  |  |  |  |  | $ 58,800,000
STI Westminster | Finance Lease - CMBFL Lease Financing 2021 | Vessels | MR |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |
Number of vessels under finance lease arrangements | vessel |  |  |  |  |  | 1 |
Borrowings |  |  |  |  |  | $ 20,250,000 |

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