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Long-term Debt: (Tables) | 6 Months Ended
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Jun. 30, 2020
Debt Disclosure [Abstract] |
Long-term Debt - Principal payments (Table) | Long-term Debt - Principal payments (Table)
Twelve month periods ending |  |  | Amount
June 30, 2021 |  | $ | 171,876
June 30, 2022 |  |  | 153,199
June 30, 2023 |  |  | 161,273
June 30, 2024 |  |  | 377,792
June 30, 2025 |  |  | 115,139
June 30, 2026 and thereafter |  |  | 186,944
Total Long term debt |  | $ | 1,166,223
Unamortized debt issuance costs |  |  | (16,500)
Total Long term debt, net |  | $ | 1,149,723
Current portion of long term debt |  |  | 171,876
Long term debt, net |  |  | 977,847
Long-term Debt - Interest and finance costs (Table) | Long-term Debt - Interest and finance costs (Table)
| Six months ended June 30,
|  | 2019 |  |  | 2020
Interest on financing agreements |  | $ | 41,034 |  | $ | 33,818
Less: Interest capitalized |  |  | (629) |  |  | —
Reclassification adjustments of interest rate swap loss/(gain) transferred to Interest and finance costs from Other Comprehensive Income (Note 13) |  |  | — |  |  | (492)
Amortization of debt issuance costs |  |  | 2,575 |  |  | 3,663
Other bank and finance charges |  |  | 846 |  |  | 1,392
Interest and finance costs |  | $ | 43,826 |  | $ | 38,381

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- Definition Tabular disclosure of maturity and sinking fund requirement for long-term debt. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601 + Details
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