Deferred Charges, Net (Details)	9 Months Ended
Dec. 31, 2022 USD ($)
Movement in deferred charges, net
Balance at the beginning of the period	$ 9,839,000
Additions	1,219,522
Amortization	(2,112,924)
Balance at the end of the period	$ 8,945,598

Represents the drydocking cost amortization expense recorded during the reporting period in the value of expenditures made during the current reporting period for benefits that will be received over a long-term period.

No definition available.

Name:	lpg_DrydockingCostsAmortization
Namespace Prefix:	lpg_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration