General business information (Additional Information) (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended	6 Months Ended
	Apr. 18, 2022	Jun. 30, 2022	Jun. 30, 2023
Initial public offering, per value		$ 408,290
Common Class A [Member]
Issuance of common stock - IPO, shares			6,254,167
Common Class A [Member] | EE Holdings [Member]
Percent of EELP interests owned			24.20%
Common Class B [Member]
Issuance of common stock - IPO, shares			2,021,389
Common Class B [Member] | EE Holdings [Member]
Percent of EELP interests owned			75.80%
Class A Common Stock [Member] | Common Class A [Member]
Issuance of common stock - IPO, shares		18,400,000
Initial public offering, per value		$ 18
Foundation Vessels Purchase [Member]
Foundation vessel cash payment	$ 50,000
IPO [Member] | Common Class A [Member]
Issuance of common stock - IPO, shares	18,400,000
Shares issued, price per share	$ 0.001
Offer price per share	$ 24
Proceeds from issuance initial public offering	$ 441,600		$ 441,600
Underwriting discounts and commissions	25,400		25,400
IPO-related expenses	$ 7,600		$ 7,600