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Vessels - Additional Information (Details)
$ in Thousands
3 Months Ended 9 Months Ended
Jun. 08, 2022
USD ($)
Sep. 30, 2022
USD ($)
vessel
Sep. 30, 2021
USD ($)
Sep. 30, 2022
USD ($)
vessel
Sep. 30, 2021
USD ($)
Sep. 30, 2018
USD ($)
vessel
Property, Plant and Equipment [Line Items]            
Number of vessels | vessel   52   52    
Proceeds from sale of vessel       $ 14,944 $ 9,159  
Asset acquisition, total consideration   $ 27,500        
Gain on sale of vessel   $ (9,336) $ (3,962) $ (9,336) $ (3,962)  
Ballast Water Treatment System            
Property, Plant and Equipment [Line Items]            
Number of vessels | vessel           39
Projected project costs           $ 500
Number of vessels, installation complete | vessel   32   32    
Transfer from advances paid for vessel purchases       $ 19,800    
Scrubbers and BWTS reclassified       $ 1,900    
Vessel Cardinal            
Property, Plant and Equipment [Line Items]            
Proceeds from sale of vessel $ 15,800