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

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The aggregate amount of receivables to be collected from related parties where one party can exercise control or significant influence over another party; including affiliates, owners or officers and their immediate families, pension trusts, and so forth, at the financial statement date. which are usually due within one year (or one business cycle).

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Transactions with Related Parties (Details)		3 Months Ended		9 Months Ended
Transactions with Related Parties (Details)	Apr. 01, 2015 item	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2016 USD ($) item	Dec. 31, 2015 USD ($)	Mar. 31, 2016 USD ($)
Transactions with Related Parties
Fees for chartering and operational services		$ 670,836	$ 383,642	$ 1,776,659	$ 1,150,927
Due from related parties		24,693,405		24,693,405		$ 54,504,359
Eagle Ocean Transport
Transactions with Related Parties
Reimbursed related travel costs and office-related costs		100,000	200,000	300,000	600,000
Manager
Transactions with Related Parties
Due from related parties		1,200,000		1,200,000		900,000
Due to related party		500,000		500,000		500,000
Helios LPG Pool LLC
Transactions with Related Parties
Due from related parties		43,200,000		$ 43,200,000		71,000,000
Interest transferred to Dorian LPG Ltd. (as a percent)	50.00%
Number of members \| item	2
Number of vessels contributed \| item				17
Number of vessels operated by third party \| item				24
Working capital contributed		19,800,000		$ 19,800,000		$ 17,600,000
Helios LPG Pool LLC \| Phoenix
Transactions with Related Parties
Number of vessels operated by third party \| item				4
Helios LPG Pool LLC \| Oriental Energy
Transactions with Related Parties
Number of vessels operated by third party \| item				3
Relative of executive officer
Transactions with Related Parties
Related party expense		0		$ 0
Relative of executive officer \| Maximum
Transactions with Related Parties
Related party expense			100,000		100,000
Other income-related party
Transactions with Related Parties
Fees for chartering and operational services				1,500,000	1,100,000
Other income-related party \| Helios LPG Pool LLC
Transactions with Related Parties
Fees for chartering and operational services		600,000	400,000
Other income
Transactions with Related Parties
Fees for chartering and operational services				300,000	100,000
Fixed reimbursement of expense from Helios		200,000	300,000	$ 700,000	$ 600,000
Other income \| Manager
Transactions with Related Parties
Fees for chartering and operational services		$ 100,000
Other income \| Manager \| Maximum
Transactions with Related Parties
Fees for chartering and operational services			$ 100,000