Carrying amount as of the balance sheet date of obligations due all related parties. For classified balance sheets, represents the current portion of such liabilities (due within one year or within the normal operating cycle if longer).

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+ Details

Transactions with Related Parties - The Managers (Details) $ in Thousands, € in Millions	May 29, 2021 EUR (€)	May 29, 2018 EUR (€)	Sep. 30, 2021 USD ($)	Dec. 31, 2020 USD ($)
Related Party Transactions [Abstract]
Management agreement term	3 years	3 years
Flat ship management fee \| €	€ 3.5	€ 3.0
Related Party Transaction, Due from (to) Related Party, Current [Abstract]
Due from manager			$ 0	$ 48
Due to manager			$ 47	$ 0