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Period Type:	instant

Percentage points added to the reference rate to compute the variable rate on the debt instrument in the event lender agrees to release the entity as defined under the loan agreement.

No definition available.

Name:	lpg_DebtInstrumentBasisSpreadOnVariableRateInEventLenderRelease
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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

Represents the maximum ratio of total debt to shareholders funds required to be maintained as defined under the secured loan agreement.

No definition available.

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Balance Type:	na
Period Type:	instant

Represents the minimum ratio of cash flow from operations before interest and finance cost to cash debt service costs required to be maintained as defined under the secured loan agreement.

No definition available.

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Balance Type:	na
Period Type:	duration

Represents the minimum cash balance at the end of each quarter required to be maintained as defined under the secured loan agreement.

No definition available.

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Data Type:	xbrli:monetaryItemType
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Represents the minimum cash balance per mortgaged vessel required to be maintained as defined under the secured loan agreement.

No definition available.

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Represents the amount of minimum shareholders' funds as adjusted as defined under the secured loan agreement.

No definition available.

Name:	lpg_DebtInstrumentCovenantsMinimumShareholdersFundAsAdjusted
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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Represents minimum market adjusted security cover ratio as percentage of aggregate outstanding loan balance required to be maintain as defined under the loan agreement.

No definition available.

Name:	lpg_DebtInstrumentMinimumMarketAdjustedSecurityCoverRatio
Namespace Prefix:	lpg_
Data Type:	num:percentItemType
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Period Type:	instant

Represents minimum market adjusted security cover ratio as percentage of aggregate outstanding loan balance required to be maintained in the event lender agrees to release the entity as defined under the loan agreement.

No definition available.

Name:	lpg_DebtInstrumentMinimumMarketAdjustedSecurityCoverRatioInEventLenderRelease
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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

Represents the minimum percentage of debt swap exposure required to be maintained.

No definition available.

Name:	lpg_DebtInstrumentMinimumPercentageOfDebtSwapExposureRequiredToBeMaintained
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Data Type:	num:percentItemType
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Period Type:	duration

Represents the number of installments over which the debt is to be repaid.

No definition available.

Name:	lpg_DebtInstrumentNumberOfInstallments
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Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

Represents the period after non-compliance of minimum market adjusted security cover ratio and percentage of debt swap exposure prepayment of debt instrument required to be made.

No definition available.

Name:	lpg_DebtInstrumentPeriodAfterNonComplianceOfMarketAdjustedSecurityCoverRatioAndDebtSwapExposurePrepaymentRequiredToBeMade
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Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

Represents the number of tranches in which loan facility is divided.

No definition available.

Name:	lpg_LoanFacilityNumberOfTranches
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Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

No definition available.

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Data Type:	num:percentItemType
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The reference rate for the variable rate of the debt instrument, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR.

No definition available.

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Face (par) amount of debt instrument at time of issuance.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399

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Amount of the required periodic payments including both interest and principal payments.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

Reference 2: http://www.xbrl.org/2003/role/presentationRef

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Amount of payment greater than the preceding installment payments to be paid at final maturity date of debt.

No definition available.

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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The cash outflow for the extinguishment of long-term borrowing, with the highest claim on the assets of the entity in case of bankruptcy or liquidation, before its maturity.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

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Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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Reference 2: http://www.xbrl.org/2003/role/presentationRef

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-Subparagraph (SX 210.9-03.16)

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Reference 4: http://www.xbrl.org/2003/role/presentationRef

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Reference 5: http://www.xbrl.org/2003/role/presentationRef

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Period Type:	instant

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Amount of long-term debt, after unamortized discount or premium, scheduled to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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-Name Accounting Standards Codification

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-Subparagraph (SX 210.5-02.19,20)

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Amount of long-term debt, sinking fund requirements, and other securities redeemable at fixed or determinable prices and dates maturing after the fifth fiscal year following the latest fiscal year.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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Amount of long-term debt, sinking fund requirements, and other securities redeemable at fixed or determinable prices and dates maturing in the next fiscal year following the latest fiscal year.

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Amount of long-term debt, sinking fund requirements, and other securities redeemable at fixed or determinable prices and dates maturing in the fifth fiscal year following the latest fiscal year.

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Amount of long-term debt, sinking fund requirements, and other securities redeemable at fixed or determinable prices and dates maturing in the fourth fiscal year following the latest fiscal year.

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Amount of long-term debt, sinking fund requirements, and other securities redeemable at fixed or determinable prices and dates maturing in the third fiscal year following the latest fiscal year.

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Amount of long-term debt, sinking fund requirements, and other securities redeemable at fixed or determinable prices and dates maturing in the second fiscal year following the latest fiscal year.

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Carrying amount of long-term debt, net of unamortized discount or premium, excluding amounts to be repaid within one year or the normal operating cycle, if longer (current maturities). Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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The carrying amounts of cash and cash equivalent items which are restricted as to withdrawal or usage. Restrictions may include legally restricted deposits held as compensating balances against short-term borrowing arrangements, contracts entered into with others, or entity statements of intention with regard to particular deposits; however, time deposits and short-term certificates of deposit are not generally included in legally restricted deposits. Excludes compensating balance arrangements that are not agreements which legally restrict the use of cash amounts shown on the balance sheet. For a classified balance sheet represents the current portion only (the noncurrent portion has a separate concept); there is a separate and distinct element for unclassified presentations.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

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Reference 2: http://www.xbrl.org/2003/role/presentationRef

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