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Vessels and Vessel Improvements - Narrative (Details)
$ in Millions
12 Months Ended
Dec. 31, 2023
USD ($)
vessel
Dec. 31, 2022
USD ($)
Property, Plant and Equipment [Abstract]    
Number of vessels | vessel 52  
Costs related to acquisition and installation of BWTS | $ $ 2.3 $ 6.2