Vessels - Additional Information (Details) $ in Thousands		6 Months Ended
	Jun. 08, 2022 USD ($)	Jun. 30, 2022 USD ($) vessel	Dec. 31, 2021 USD ($)	Sep. 30, 2018 USD ($) vessel
Property, Plant and Equipment [Line Items]
Number of vessels | vessel		53
Vessel held for sale		$ 5,592	$ 0
Discontinued Operations, Held-for-sale
Property, Plant and Equipment [Line Items]
Vessel held for sale		$ 5,592
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		29
Transfer from advances paid for vessel purchases		$ 17,300
Scrubbers and BWTS reclassified		3,200
Vessel Cardinal
Property, Plant and Equipment [Line Items]
Vessel total consideration	$ 15,800
Vessel held for sale		$ 5,600