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Other non-current assets, net (Details) - USD ($)	Mar. 31, 2019	Dec. 31, 2018
Other Assets, Noncurrent	$ 3,537,367	$ 3,549,511
Finance Liability [Member]
Amount receivable in respect of finance leases	2,880,000	2,880,000
Equipment, fixtures & fittings	$ 657,367	$ 669,511

X

- Definition

Amount represents fixtures and equipment net.

+ References

No definition available.

+ Details

Name:	asc_FixturesAndEquipmentNet
Namespace Prefix:	asc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

It represents the amount of seller's credit .

+ References

No definition available.

+ Details

Name:	asc_SellersCreditNote
Namespace Prefix:	asc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Amount of noncurrent assets classified as other.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.17)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_OtherAssetsNoncurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Details

Name:	us-gaap_LongtermDebtTypeAxis=asc_FinanceLiabilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: