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Long-term bank loans - Interest and finance costs (Table) (Details) - USD ($) $ in Thousands | 6 Months Ended
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Jun. 30, 2025 | Jun. 30, 2024
Debt Disclosure [Abstract] |  |
Interest on financing agreements | $ 37,228 | $ 47,183
Less: Interest capitalized | (736) | (500)
Reclassification adjustments of interest rate swap loss/(gain) transferred to Interest and finance costs from Other Comprehensive Loss | (551) | (2,792)
Amortization of debt (loan & lease) issuance costs | 1,633 | 1,691
Other bank and finance charges | 559 | 530
Interest and finance costs | $ 38,133 | $ 46,112

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