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Gain / (loss) on sale of vessels - Additional information (Details) - USD ($) $ in Thousands	1 Months Ended			12 Months Ended
	Apr. 30, 2024	Feb. 29, 2024	Jun. 30, 2022	Dec. 31, 2024	Dec. 31, 2022
Lessee, Lease, Description [Line Items]
Gain / (loss) on vessels sold				$ 12,322	$ (6,917)
Ardmore Seafarer
Lessee, Lease, Description [Line Items]
Vessel sales price		$ 27,100
Gain / (loss) on vessels sold	$ 12,300			$ 12,322
Ardmore Sealancer [Member]
Lessee, Lease, Description [Line Items]
Gain / (loss) on vessels sold					$ (728)
Ardmore Sealeader & Ardmore Sealifter
Lessee, Lease, Description [Line Items]
Vessel sales price			$ 40,700
Gain / (loss) on vessels sold			$ (6,900)

X

- Definition

Amount of gain (loss) on sale or disposal of property, plant and equipment assets, including oil and gas property and timber property.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 45
-Paragraph 28
-Subparagraph (b)
-SubTopic 10
-Topic 230
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-28

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X

- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 7A
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478964/842-20-50-7A

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478964/842-20-50-3

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- Definition

Amount of cash inflow for the sale of long-lived, physical assets used to produce goods and services and not intended for resale, classified as other.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 12
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-12

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