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v3.25.0.1

Segment Reporting - Reconciliation of Total Segment Assets (Detail) - USD ($) $ in Thousands | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | --- | --- | ---
Segment Reporting Information [Line Items] |  |  |  |
Total assets | $ 2,153,115 | $ 2,196,638 |  |
Cash and cash equivalents (notes 11 and 20) | 685,331 | 480,080 | $ 309,857 | $ 108,977
Debt Securities, Held-to-Maturity, Amortized Cost, after Allowance for Credit Loss, Current | 10,000 | 172,604 |  |
Segment Reconciling Items |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Cash and cash equivalents (notes 11 and 20) | 685,331 | 480,080 |  |
Debt Securities, Held-to-Maturity, Amortized Cost, after Allowance for Credit Loss, Current | 10,000 | 172,604 |  |
Consolidation, Eliminations |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total assets | 0 | (129) |  |
Tankers [Member] | Operating Segments |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total assets | $ 1,416,789 | $ 1,508,243 |  |

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