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Gain / (loss) on sale of vessels (Details) - USD ($) $ in Thousands	1 Months Ended	12 Months Ended
	Apr. 30, 2024	Dec. 31, 2024	Dec. 31, 2022
Loss on sale of vessels
Sales proceeds			$ 40,727
Net book value of vessel			(46,829)
Sales related costs			(815)
Gain / (loss) on vessels sold		$ 12,322	(6,917)
(Gain) / loss on vessels sold		(12,322)	6,917
Ardmore Seafarer
Loss on sale of vessels
Sales proceeds		27,100
Net book value of vessel		(14,583)
Sales related costs		(195)
Gain / (loss) on vessels sold	$ 12,300	$ 12,322
Ardmore Sealeader [Member]
Loss on sale of vessels
Sales proceeds			13,239
Net book value of vessel			(16,251)
Sales related costs			(265)
Gain / (loss) on vessels sold			(3,277)
Ardmore Sealifter [Member]
Loss on sale of vessels
Sales proceeds			13,239
Net book value of vessel			(15,886)
Sales related costs			(265)
Gain / (loss) on vessels sold			(2,912)
Ardmore Sealancer [Member]
Loss on sale of vessels
Sales proceeds			14,249
Net book value of vessel			(14,692)
Sales related costs			(285)
Gain / (loss) on vessels sold			$ (728)

X

- Definition

Amount of gain (loss) on vessel held for sale.

+ References

No definition available.

+ Details

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Namespace Prefix:	asc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

It represent the Sales Proceeds for the reporting period.

+ References

No definition available.

+ Details

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X

- Definition

It represent the net book value of vessel for the reporting period.

+ References

No definition available.

+ Details

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Namespace Prefix:	asc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

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 (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478964/842-20-50-7A

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X

- Definition

Expenses recognized in the period that are directly related to the selling and distribution of products or services.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 220
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(4))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2

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- Details

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X

- Details

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