Transactions with Related Parties (Details)	12 Months Ended		9 Months Ended	12 Months Ended		0 Months Ended	9 Months Ended	12 Months Ended				0 Months Ended			0 Months Ended				0 Months Ended		0 Months Ended	9 Months Ended			12 Months Ended
	Mar. 31, 2015 item	Mar. 31, 2015 Eagle Ocean Transport USD ($)	Mar. 31, 2014 Eagle Ocean Transport Inc and SeaCor USD ($)	Mar. 31, 2015 Eagle Ocean Transport Inc and SeaCor USD ($)	Mar. 31, 2015 Dorian Hellas Member Dorian L P G UK Ltd Member USD ($)	Jul. 26, 2013 DHSA USD ($)	Mar. 31, 2014 DHSA USD ($)	Mar. 31, 2015 DHSA USD ($)	Jul. 29, 2013 SeaDor	Jul. 29, 2013 SeaDor Common stock USD ($)	Jul. 29, 2013 SeaDor Common stock NOK	Jul. 29, 2013 SeaDor SeaCor LPG I LLC (Comet) Asset acquisition USD ($) item	Jul. 29, 2013 SeaDor SeaCor LPG I LLC (Comet) Asset acquisition USD ($)	Jul. 29, 2013 SeaDor SeaCor LPG I LLC (Comet) Asset acquisition NOK	Jul. 29, 2013 SeaDor SeaCor LPG I LLC (Comet) Asset acquisition Common stock	Nov. 26, 2013 Scorpio Asset acquisition USD ($) item	Nov. 26, 2013 Scorpio Asset acquisition USD ($)	Nov. 26, 2013 Scorpio Asset acquisition NOK	Nov. 26, 2013 Scorpio Asset acquisition Common stock	Jul. 29, 2013 Mr. John Hadjipateras	Jul. 26, 2013 Mr. John Hadjipateras Eagle Ocean Transport item	Mar. 31, 2014 Mr. John Hadjipateras Eagle Ocean Transport USD ($)	Jul. 26, 2013 Mr. John Hadjipateras Eagle Ocean Transport	Jul. 26, 2013 Vice President of Chartering, Insurance and Legal, Nigel Grey-Turner HSSL	Mar. 31, 2015 Former board of directors member USD ($)	May 01, 2015 Former board of directors member USD ($)
Transactions with Related Parties
Management fees for vessels							$ 3,000,000	$ 1,100,000
Monthly pre-delivery fee per vessel						15,000
Pre-delivery fees paid							1,200,000	900,000
Capital charge (as a percent)												6.00%
Interest transferred to Dorian LPG Ltd. (as a percent)													100.00%	100.00%			100.00%	100.00%
Number of VLGC vessels acquired	16											1
Number of VLGCs with option rights to construct												1.5
Number of shares of common stock issued															4,667,135				7,990,425
Value of common stock (per share)										$ 12.66	75.00		$ 12.66	75.00			$ 15.16	92.50
Ownership interest (as a percent)									25.00%											25.00%			100.00%	100.00%
Number of entities acquired																13
Number of vessels acquired per subsidiary																1
Monthly management fee per vessel						93,750
Advance payments period						1 month
Pre-delivery fees expensed							100,000
Pre-delivery fees capitalized							1,100,000
Percentage of shipbroker fee rebated to it as compensation for its services that can be retained																					100.00%
Number of new building contracts for VLGCs																					3
Number of new building contracts for associated option agreements																					3
Shipbroker rebates paid to related party			500,000	800,000
Reimbursed related travel costs		700,000
Due to related party					100,000
Amount reimbursed out of cost incurred for equity issuances and debt restructuring																						300,000
Consulting agreement amount																										250,000
Expense																									200,000
Transaction value allocated to assets purchased
Cash																1,930,000
Cash acquired from acquisition												49,854,870
Purchase contract for VLGC newbuilding contracts (includes advance payment)													7,009,675				119,386,040
Purchase option contracts													2,529,126
Total consideration													$ 59,393,671				$ 121,316,040