accounting treatment; therefore, any unrealized or realized gains and losses are recorded in the Condensed Consolidated Statements of Operations. Derivatives are Level 2 instruments in the fair value hierarchy.
During the three months ended September 30, 2024 and 2023, the Company recorded ($15) and $164 of realized (losses) gains in other expense, respectively. During the three months ended September 30, 2024 and 2023, the Company recorded ($123) and ($15) of unrealized losses in other expense, respectively.
During the nine months ended September 30, 2024 and 2023, the Company recorded $95 and $245 of realized gains in other expense, respectively. During the nine months ended September 30, 2024 and 2023, the Company recorded ($84) and ($95) of unrealized losses in other expense, respectively.
The total fair value of the bunker swap agreements and forward fuel purchase agreements in an asset position as of September 30, 2024 and December 31, 2023 is $0 and $1, respectively, and are recorded in prepaid expenses and other current assets in the Condensed Consolidated Balance Sheets. The total fair value of the bunker swap agreements and forward fuel purchase agreements in a liability position as of September 30, 2024 and December 31, 2023 is $82 and $0, respectively, and are recorded in accounts payable and accrued expenses in the Condensed Consolidated Balance Sheets.
Voyage expense recognition
In time charters and spot market-related time charters, operating costs including crews, maintenance and insurance are typically paid by the owner of the vessel and specified voyage costs such as fuel and port charges are paid by the charterer. These expenses are borne by the Company during spot market voyage charters. As such, there are significantly higher voyage expenses for spot market voyage charters as compared to time charters and spot market-related time charters. There are certain other non-specified voyage expenses, such as commissions, which are typically borne by the Company. At the inception of a time charter, the Company records the difference between the cost of bunker fuel delivered by the terminating charterer and the bunker fuel sold to the new charterer as a gain or loss within voyage expenses. Additionally, the Company records lower of cost and net realizable value adjustments to re-value the bunker fuel on a quarterly basis for certain time charter agreements where the inventory is subject to gains and losses. These differences in bunkers, including any lower of cost and net realizable value adjustments, resulted in a net loss (gain) of $76 and ($552) during the three months ended September 30, 2024 and 2023, respectively, and $195 and $89 during the nine months ended September 30, 2024 and 2023, respectively. Additionally, voyage expenses include the cost of bunkers consumed during short-term time charters pursuant to the terms of the time charter agreement.
Impairment of vessel assets
Impairment of vessel assets includes the impairment of vessel assets in accordance with Accounting Standards Codification (“ASC”) 360 — “Property, Plant and Equipment” (“ASC 360”), as well as any losses incurred related to the disposal of replaced equipment on the vessels.
During the three and nine months ended September 30, 2024, the Company recorded $961 and $6,595, respectively, of impairment expense. During the three and nine months ended September 30, 2023, the Company recorded $28,102 of impairment expense. Included in the impairment expense recorded during the three and nine months ended September 30, 2024, there is $961 recorded related to the loss on disposal of replaced equipment on certain vessels.
On July 16, 2024, the Company entered into an agreement to sell the Genco Hadrian, a 2008-built Capesize vessel, to a third party for $25,000 less a 2.0% commission payable to a third party. As the anticipated undiscounted cash flows, including the net sales price, did not exceed the net book value of the vessels as of June 30, 2024, the vessel value for the Genco Hadrian was adjusted to its net sales price of $24,500 as of June 30, 2024. This resulted in an impairment loss of $5,634 during the nine months ended September 30, 2024.
On September 30, 2023, the Company determined that the expected estimated future undiscounted cash flows for three of its Capesize vessels, the Genco Claudius, the Genco Commodus and the Genco Maximus, did not exceed the