XML 73 R72.htm IDEA: XBRL DOCUMENT v2.4.1.9
Income Taxes (Details) (U.S., USD $)
 9 Months Ended 12 Months Ended
Mar. 31, 2014
Mar. 31, 2015
U.S.
    
Income Taxes    
Tax rate on US source shipping income (as a percent) 4.00%lpg_IncomeTaxRateOnDomesticSourceShippingIncome
/ us-gaap_StatementGeographicalAxis
= country_US		 4.00%lpg_IncomeTaxRateOnDomesticSourceShippingIncome
/ us-gaap_StatementGeographicalAxis
= country_US
Shipping income (as a percent) 50.00%lpg_PercentageOfShippingIncomeAttributableToTransportOfCargoToOrFromForeignCountry
/ us-gaap_StatementGeographicalAxis
= country_US		 50.00%lpg_PercentageOfShippingIncomeAttributableToTransportOfCargoToOrFromForeignCountry
/ us-gaap_StatementGeographicalAxis
= country_US
Tax on US source shipping income   $ 39,266lpg_IncomeTaxOnDomesticSourceShippingIncome
/ us-gaap_StatementGeographicalAxis
= country_US