Leases - Time Charter-in Contracts (Details) - USD ($)	3 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Mar. 31, 2024
Lessee, Lease, Description [Line Items]
Charter hire expenses	$ 10,645,140	$ 10,546,810
Operating lease right-of-use assets	183,794,058		$ 191,700,338
Time Charter-in VLGCs
Lessee, Lease, Description [Line Items]
Operating lease right-of-use assets	182,708,445		$ 190,505,364
Helios LPG Pool LLC
Lessee, Lease, Description [Line Items]
Pool revenue - time chartered-in VLGCs	$ 17,700,000	$ 18,300,000