Represents the number of entities the company acquired.

No definition available.

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- Definition

Represents the number of fuel-efficient Eco-design Very Large Gas Carrier vessels in current fleet having a capacity of 84,000 cubic meters.

+ References

No definition available.

+ Details

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- Definition

Represents the number of pressurized vessels in current fleet having a capacity of 5,000 cubic meters.

+ References

No definition available.

+ Details

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- Definition

Represents the number of ship owning entities.

+ References

No definition available.

+ Details

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- Definition

Represents the number of Very Large Gas Carriers the entity has option rights to construct.

+ References

No definition available.

+ Details

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Data Type:	xbrli:decimalItemType
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- Definition

Represents the number of Very Large Gas Carrier vessels or newbuilding contracts acquired.

+ References

No definition available.

+ Details

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- Definition

Represents the number of Very Large Gas Carrier vessels in current fleet having a capacity of 82,000 cubic meters.

+ References

No definition available.

+ Details

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- Definition

Represents the number of Very Large Gas Carrier vessels in the current fleet with minimum capacity of 80,000 cubic meters.

+ References

No definition available.

+ Details

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- Definition

Represents the number of Very Large Gas Carrier vessels acquired.

+ References

No definition available.

+ Details

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

- Definition

Represents the ownership interest held by related party.

+ References

No definition available.

+ Details

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

- Definition

Number of shares of equity interests issued or issuable to acquire entity.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 30

-Section 50

-Paragraph 1

-Subparagraph (b)(4)

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- Definition

Percentage of voting equity interests acquired at the acquisition date in the business combination.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)

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- Definition

Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 30

-Section 30

-Paragraph 7

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-Paragraph 1

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- Definition

The cash inflow associated with the acquisition of business during the period (for example, cash that was held by the acquired business).

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Investing Activities

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-SubTopic 10

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-Subparagraph (b)

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- Definition

The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Investing Activities

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-SubTopic 10

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-Paragraph 13

-Subparagraph (b)

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Data Type:	xbrli:monetaryItemType
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- Definition

The cash inflow associated with the amount received from entity's raising of capital via private rather than public placement.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Financing Activities

-URI http://asc.fasb.org/extlink&oid=6513228

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-Topic 230

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-Paragraph 14

-Subparagraph (a)

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- Definition

Minimum amount of purchase arrangement maturing in the next fiscal year following the latest fiscal year. Includes, but not limited to, recorded and unrecorded purchase obligations, long-term purchase commitments, and short-term purchase commitments.

+ References

No definition available.

+ Details

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- Definition

Price of a single share of a number of saleable stocks of a company.

+ References

No definition available.

+ Details

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- Definition

Number of new stock issued during the period.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Article 3

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-Section S99

-Paragraph 1

-Subparagraph (SX 210.3-04)

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 29, 30

-Article 5

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- Definition

Number of shares of common and preferred stock retired from treasury during the period.

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Basis of Presentation and General Information (Details)	0 Months Ended	12 Months Ended				0 Months Ended									9 Months Ended	0 Months Ended				0 Months Ended			0 Months Ended																0 Months Ended		0 Months Ended		0 Months Ended			0 Months Ended
Basis of Presentation and General Information (Details)	Jan. 02, 2015 item	Mar. 31, 2015 USD ($) item	Jul. 29, 2013 Mr. John Hadjipateras	Jul. 29, 2013 SeaDor	Jul. 29, 2013 Institutional investors and high net worth investors	Jul. 29, 2013 Business combination USD ($)	Jul. 29, 2013 Business combination Dorian Holdings USD ($) item	May 22, 2014 Common stock	May 13, 2014 Common stock	Apr. 25, 2014 Common stock	Feb. 12, 2014 Common stock	Nov. 26, 2013 Common stock	Jul. 29, 2013 Common stock	Jul. 01, 2013 Common stock	Mar. 31, 2014 Common stock	Jul. 29, 2013 Common stock Dorian Holdings	Jul. 01, 2013 Common stock Dorian Holdings	Jul. 29, 2013 Common stock Dorian Holdings USD ($)	Jul. 29, 2013 Common stock Dorian Holdings NOK	Jul. 29, 2013 Common stock SeaDor	Jul. 29, 2013 Common stock SeaDor USD ($)	Jul. 29, 2013 Common stock SeaDor NOK	Jul. 29, 2013 Common stock Business combination Dorian Holdings	Apr. 25, 2014 Common stock Private placement USD ($)	Feb. 12, 2014 Common stock Private placement	Nov. 26, 2013 Common stock Private placement	Jul. 29, 2013 Common stock Private placement USD ($)	Apr. 25, 2014 Common stock Private placement USD ($)	Apr. 25, 2014 Common stock Private placement NOK	Feb. 12, 2014 Common stock Private placement USD ($)	Feb. 12, 2014 Common stock Private placement NOK	Nov. 26, 2013 Common stock Private placement USD ($)	Nov. 26, 2013 Common stock Private placement NOK	Jul. 29, 2013 Common stock Private placement USD ($)	Jul. 29, 2013 Common stock Private placement NOK	Jul. 29, 2013 CNML LPG Transport LLC Business combination Dorian Holdings	Jul. 29, 2013 CJNP LPG Transport LLC Business combination Dorian Holdings	Jul. 29, 2013 CMNL LPG Transport LLC Business combination Dorian Holdings	Jul. 29, 2013 Other subsidiaries Business combination Dorian Holdings USD ($) item	Jul. 29, 2013 Other subsidiaries Business combination Dorian Holdings	Jul. 29, 2013 Grendon Tanker LLC Business combination Affiliates of Dorian Holdings USD ($)	Jul. 29, 2013 Grendon Tanker LLC Business combination Affiliates of Dorian Holdings	Jul. 29, 2013 SeaCor LPG I LLC (Comet) Asset acquisition SeaDor USD ($) item	Jul. 29, 2013 SeaCor LPG I LLC (Comet) Asset acquisition SeaDor USD ($)	Jul. 29, 2013 SeaCor LPG I LLC (Comet) Asset acquisition SeaDor NOK	Jul. 29, 2013 SeaCor LPG I LLC (Comet) Common stock Asset acquisition SeaDor
Shares cancelled										19			100		19
Shares issued								245,521	7,105,263	1,412,698	5,649,200	24,071,506	18,644,324	100		4,667,135	100			4,667,135				1,412,698	5,649,200	16,081,081	9,310,054
Value of common stock (per share)																		$ 12.66	75.00		$ 12.66	75.00						$ 18.40	110.00	$ 17.92	110.00	$ 15.16	92.50	$ 12.66	75.00									$ 12.66	75.00
Gross proceeds received																								$ 26,000,000			$ 117,900,000
Cash consideration						16,405,396	9,732,911																																		6,672,485
Total non-stock consideration						75,497,895	68,825,410																																		6,672,485
Number of shares acquired in exchange of common stock																							4,667,135																							4,667,135
Interest transferred to Dorian LPG Ltd. (as a percent)																																				100.00%	100.00%	100.00%		100.00%		100.00%		100.00%	100.00%
Number of VLGCs with minimum 80,000 cbm	7
Number of fuel-efficient ECO-design VLGCs having 84,000 cbm	3
Number of VLGCs having 82,000 cbm	3
Number of PGCs having 5,000 cbm	1
Current shipyard commitments		16
Number of Ship Owning Entities							3
Number of entities acquired																																							2
Number of VLGC vessels acquired																																							1
Number of VLGCs with option rights to construct																																							1.5				1.5
Cash acquired from acquisition																																							$ 2,670,000				$ 49,854,870
Number of VLGC vessels acquired		16																																									1
Ownership interest (as a percent)			25.00%	25.00%	50.00%