Name:	lpg_AssetsUnderConstructionNet
Namespace Prefix:	lpg_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Represents the capacity of VLGC/AC vessels in cubic meters.

No definition available.

Name:	lpg_CapacityOfAmmoniaCarrierVlgcVesselCubicMeters
Namespace Prefix:	lpg_
Data Type:	dtr-types:volumeItemType
Balance Type:	na
Period Type:	instant

Amount of interest expense capitalized to long-lived, physical assets under constructions.

No definition available.

Name:	lpg_CapitalizedInterestVesselsUnderConstruction
Namespace Prefix:	lpg_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Amount of expense for installment plans capitalized to long-lived, physical assets under constructions.

No definition available.

Name:	lpg_InstallmentPlanVesselsUnderConstruction
Namespace Prefix:	lpg_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Amount of expenditures, classified as other, capitalized to long-lived, physical assets under constructions.

No definition available.

Name:	lpg_OtherCapitalizedExpendituresVesselsUnderConstruction
Namespace Prefix:	lpg_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 7A
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478964/842-20-50-7A