Represents the number of Company vessels that are operating under pooling agreement.

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Represents the number of directors that can be appointed to the board of directors pursuant to the agreement.

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Represents the Number of third party vessels that are operating under pooling agreement.

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The number of very large gas carrier VLGC time chartered-in vessels.

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Represents the number of vessels that are operating under pooling agreement.

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Represents the ownership interest held by related party.

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No definition available.

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Represents the amount of fixed reimbursement of expense from Helios.

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Represents the amount of working capital contributed to a related party.

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

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For an unclassified balance sheet, amounts due from related parties including affiliates, employees, joint ventures, officers and stockholders, immediate families thereof, and pension funds.

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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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Carrying amount as of the balance sheet date of obligations due all related parties. For classified balance sheets, represents the current portion of such liabilities (due within one year or within the normal operating cycle if longer).

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The total amount of other operating income, the components of which are not separately disclosed on the income statement, from items that are associated with the entity's normal revenue producing operation.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Transactions with Related Parties (Details)		3 Months Ended		9 Months Ended
Transactions with Related Parties (Details)	Apr. 01, 2014 item	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2020 USD ($) item	Dec. 31, 2019 USD ($)	Mar. 31, 2020 USD ($)	Jul. 26, 2013
Transactions with Related Parties
Due from related parties - current		$ 75,999,872		$ 75,999,872		$ 66,847,701
Due to related parties		253,463		$ 253,463		436,850
Number of time chartered-in VLGC \| item				2
Manager
Transactions with Related Parties
Due from related parties - current		1,100,000		$ 1,100,000		1,300,000
Mr. John Hadjipateras
Transactions with Related Parties
Ownership interest (as a percent)							100.00%
Helios LPG Pool LLC
Transactions with Related Parties
Due from related parties		97,600,000		97,600,000		88,100,000
Due from related parties - current		1,100,000		1,100,000		1,100,000
Due to related parties		200,000		$ 200,000		400,000
Interest transferred to Dorian LPG Ltd. (as a percent)	50.00%
Number of members \| item	2
Number of vessels that are operating under pooling agreement \| item				33
Number of time chartered-in VLGC \| item				2
Number of Company vessels that are operating under pooling agreement \| item				22
Number of third party vessels that are operating under pooling agreement \| item				5
Working capital contributed		24,200,000		$ 24,200,000		$ 24,200,000
Helios LPG Pool LLC \| Phoenix
Transactions with Related Parties
Number of third party vessels that are operating under pooling agreement \| item				3
Helios LPG Pool LLC \| Time Chartered-in Vessels
Transactions with Related Parties
Number of third party vessels that are operating under pooling agreement \| item				3
Other income-related party \| Manager
Transactions with Related Parties
Related party income for chartering and operational services				$ 100,000	$ 100,000
Other income-related party \| Manager \| Maximum
Transactions with Related Parties
Related party income for chartering and operational services		100,000	$ 100,000
Other income-related party \| Helios LPG Pool LLC
Transactions with Related Parties
Related party income for chartering and operational services		500,000	400,000	1,500,000	1,200,000
Other revenues, net
Transactions with Related Parties
Fixed reimbursement of expense from Helios		$ 900,000	$ 400,000	$ 2,900,000	$ 900,000