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Operating leases | 6 Months Ended
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Jun. 30, 2025
Operating Leases |
Operating leases | 6. Operating leases: a) Time charter-in vessel agreements The carrying value of the assets and liabilities recognized on the balance sheet as of December 31, 2024 and June 30, 2025 in connection with the time charter-in vessel arrangements with an initial term exceeding 12 months amounted to $181,618 and $168,247, respectively, and are included under “Operating leases, right-of-use assets” and “Operating lease liabilities, current and non-current” in the consolidated balance sheets. The weighted average discount rate that was used for the recognition of these leases, which is the estimated annual incremental borrowing rate for this type of asset, is approximately 5.3%. The time charter-in hire payments required to be made after June 30, 2025, for these outstanding operating lease liabilities are as follows: Operating leases - Operating lease liabilities of time charter-in vessel agreements (Table)
Twelve month periods ending |  | Amount
June 30, 2026 | $ | 36,446
June 30, 2027 |  | 34,448
June 30, 2028 |  | 36,545
June 30, 2029 |  | 31,981
June 30, 2030 |  | 29,405
June 30, 2031 and thereafter |  | 27,281
Total undiscounted lease payments | $ | 196,106
Discount based on incremental borrowing rate |  | (27,859)
Present value of lease liability |  | 168,247
Operating lease liabilities, current |  | 28,009
Operating lease liabilities, non-current |  | 140,238
The weighted average remaining lease term of these charter-in vessel arrangements as of June 30, 2025 is 5.7 years. The charter-in hire expenses for the long-term charter-in arrangements for the six-month periods ended June 30, 2024 and 2025 were $9,396 and $18,453, respectively, and are included under “Charter-in hire expenses” in the unaudited interim condensed consolidated income statements. 6. Operating leases - continued: b) Office rental arrangements The carrying value of the assets and liabilities recognized on the balance sheet as of December 31, 2024 and June 30, 2025 in connection with the office rental arrangements amounted to $2,891 and $2,859, respectively, and are included under “Operating leases, right-of-use assets” and “Operating lease liabilities, current and non-current” in the consolidated balance sheets. The weighted average discount rate that was used for the recognition of these leases, which is the estimated annual incremental borrowing rate for this type of asset, is approximately 5.3%. The office rental payments required to be made after June 30, 2025 for these outstanding operating lease liabilities are as follows: Operating leases - Operating lease liabilities of office rental agreements (Table)
Twelve month periods ending |  | Amount
June 30, 2026 | $ | 1,120
June 30, 2027 |  | 961
June 30, 2028 |  | 638
June 30, 2029 |  | 362
June 30, 2030 |  | 44
June 30, 2031 and thereafter |  | —
Total undiscounted lease payments | $ | 3,125
Discount based on incremental borrowing rate |  | (266)
Present value of lease liability | $ | 2,859
Operating lease liabilities, current |  | 1,027
Operating lease liabilities, non-current |  | 1,832
The weighted average remaining lease term of these office rental arrangements as of June 30, 2025 is 3.1 years. The lease expenses for these office rental arrangements for the six-month periods ended June 30, 2024 and 2025 were $241 and $831, respectively, and are included under “General and administrative expenses” in the unaudited interim condensed consolidated income statements.

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- Definition The entire disclosure for lessor's operating leases. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 842 -SubTopic 30 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/842-30/tableOfContent + Details
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