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Commitments and Contingencies (Narratives) (Details) - USD ($) $ in Millions	Mar. 31, 2019	Dec. 31, 2018
Loss contingency
Accrued liability for the outcomes of non-income based tax audits	$ 4.5	$ 4.5
Indemnification liability	$ 2.7	$ 2.6

X

- Definition

The balance of indemnified liabilities as of the balance sheet date.

+ References

No definition available.

+ Details

Name:	aroc_IndemnificationLiability
Namespace Prefix:	aroc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Amount of loss contingency liability.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=82911808&loc=d3e14326-108349

+ Details

Name:	us-gaap_LossContingencyAccrualAtCarryingValue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- References

No definition available.

+ Details

Name:	us-gaap_LossContingencyAccrualDisclosuresAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration