Basis of Presentation and General Information (General) (Details)	3 Months Ended
	Jun. 30, 2023 item m³
Basis of Presentation and General Information:
Capacity of standard VLGC vessel (in cubic meters)	80,000
Capacity of dual-fuel ECO-design VLGC vessel (in cubic meters)	84,000
Capacity of fuel-efficient ECO-design VLGC vessel (in cubic meters)	84,000
Capacity of modern-design VLGC vessel (in cubic meters)	82,000
Number of VLGCs with minimum 80,000 cbm	25
Number of dual-fuel ECO-design VLGCs having 84,000 cbm	1
Number of fuel-efficient ECO-design VLGCs having 84,000 cbm	19
Number of VLGCs having 82,000 cbm	1
Number of dual-fuel time chartered-in VLGCs	2
Number of time chartered-in ECO-VLGC	2
The number of vessels that have exhaust gas cleaning systems | item	13
The number of chartered-in vessels that have exhaust gas cleaning systems | item	1
The number of vessels with contracts to purchase exhaust gas cleaning systems	3