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Subsequent events (Additional Information) (Details)
$ / shares in Units, $ in Millions
3 Months Ended
Feb. 28, 2023
USD ($)
Feb. 23, 2023
$ / shares
Dec. 31, 2022
Sep. 30, 2022
Jun. 30, 2022
Mar. 31, 2023
USD ($)
Oct. 04, 2022
MMcfe
Subsequent Event [Line Items]              
Newbuild floating storage regasification unit | MMcfe             170,000
Dividends Payable, Date to be Paid     Apr. 27, 2023 Dec. 14, 2022 Sep. 07, 2022    
Subsequent Event [Member]              
Subsequent Event [Line Items]              
Dividends Payable, Date to be Paid   Apr. 27, 2023          
Dividends Payable, Date of Record   Apr. 12, 2023          
Subsequent Event [Member] | Ventura Global SPA [Member]              
Subsequent Event [Line Items]              
Sales and purchase agreement period 20 years            
Purchase | $ $ 0.7            
Subsequent Event [Member] | FSRU Sequoia [Member]              
Subsequent Event [Line Items]              
Purchase | $           $ 265.0  
Subsequent Event [Member] | Class B interests [Member]              
Subsequent Event [Line Items]              
Dividends Payable, Amount Per Share | $ / shares   $ 0.025          
Subsequent Event [Member] | Class A Common Stock [Member]              
Subsequent Event [Line Items]              
Dividends Payable, Amount Per Share | $ / shares   $ 0.025