Document and Entity Information - shares	9 Months Ended
	Dec. 31, 2015	Jan. 27, 2016
Document and Entity Information
Entity Registrant Name	DORIAN LPG LTD.
Entity Central Index Key	0001596993
Document Type	10-Q
Document Period End Date	Dec. 31, 2015
Amendment Flag	false
Current Fiscal Year End Date	--03-31
Entity Current Reporting Status	Yes
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		57,225,162
Document Fiscal Year Focus	2016
Document Fiscal Period Focus	Q3