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Transactions with Related Parties - Helios LPG Pool LLC (Details)		3 Months Ended
	Apr. 01, 2015 item	Jun. 30, 2026 USD ($) item	Jun. 30, 2025 USD ($)	Mar. 31, 2026 USD ($)
Transactions with Related Parties
Due to related parties		$ 557,995
Fees for services		$ 600,000	$ 600,000
Helios LPG Pool LLC
Transactions with Related Parties
Number of VLGC vessels operated by the Helios Pool \| item		31
Helios LPG Pool LLC \| Dorian fleet
Transactions with Related Parties
Number of VLGC vessels operated by the Helios Pool \| item		27
Helios LPG Pool LLC \| Dorian fleet \| Time chartered-in VLGC
Transactions with Related Parties
Number of VLGC vessels operated by the Helios Pool \| item		6
Helios LPG Pool LLC \| MOL Energia
Transactions with Related Parties
Ownership interest (as a percent)	50.00%
Board members from each joint venture needed to approve operational activities \| item	2
Number of VLGC vessels operated by the Helios Pool \| item		2
Due from related parties		$ 211,900,000		123,400,000
Due to related parties		600,000
Contributed working capital		28,600,000		$ 28,600,000
Due from related parties, non-current		22,000,000
Related party income - expense reimbursements		$ 100,000	$ 400,000
Helios LPG Pool LLC \| Other partner
Transactions with Related Parties
Number of VLGC vessels operated by the Helios Pool \| item		2