Cash outflows from payments of gathering and compression fees.

No definition available.

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Namespace Prefix:	ar_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Represents the minimum percentage of centralized compression capacity that Antero Resources is contractually required to utilize or pay for under minimum volume commitment provisions of the gathering and compression agreements.

+ References

No definition available.

+ Details

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Namespace Prefix:	ar_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The period prior to which notice to be served for the termination of the contract.

+ References

No definition available.

+ Details

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Namespace Prefix:	ar_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the minimum volume of commitments.

+ References

No definition available.

+ Details

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Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	instant

- Definition

Represents the minimum volume commitments that require Antero to utilize or pay certain percentage of the capacity of such new construction of compressor stations.

+ References

No definition available.

+ Details

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Data Type:	dtr-types:percentItemType
Balance Type:	na
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- Definition

Represents the minimum volume commitments that require Antero to utilize or pay certain percentage of the capacity of such new construction for high pressure lines.

+ References

No definition available.

+ Details

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Namespace Prefix:	ar_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The number of days from date of asset in service considered for lease term.

+ References

No definition available.

+ Details

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Namespace Prefix:	ar_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of rate of return on construction.

+ References

No definition available.

+ Details

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Namespace Prefix:	ar_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Term considered for rate of return on construction.

+ References

No definition available.

+ Details

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Namespace Prefix:	ar_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents percentage of third party out of pocket cost reimbursement markup.

+ References

No definition available.

+ Details

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Namespace Prefix:	ar_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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Reference 3: http://www.xbrl.org/2003/role/exampleRef
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+ Details

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

- 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/2009/role/commonPracticeRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
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+ Details

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (a)(3)
-Publisher FASB
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+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	instant

- Details

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Namespace Prefix:
Data Type:	na
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- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_BusinessAcquisitionAxis=ar_MarcellusShaleMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=srt_AffiliatedEntityMember
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Leases - Related Party Lease Disclosure (Details) $ in Thousands		3 Months Ended		9 Months Ended		12 Months Ended
	Dec. 08, 2019 D	Sep. 30, 2026 USD ($)	Sep. 30, 2025 USD ($)	Sep. 30, 2026 USD ($)	Sep. 30, 2025 USD ($)	Dec. 31, 2019	Dec. 31, 2025 USD ($)	Jan. 01, 2025 item
Antero Midstream Corporation
Leases
Percentage of rate of return	13.00%
Term for rate of return on constructions	7 years
Third party out of pocket costs reimbursement, percentage	3.00%
Notice period						180 days
Gathering and compression fees paid		$ 247,000	$ 212,000	$ 715,000	$ 629,000
Antero Midstream Corporation \| If and to the extent the Company requests that Antero Midstream construct gathering lines, centralized compressor stations and/or high pressure lines
Leases
Minimum volume commitments that require Antero to utilize or pay certain percentage of the capacity of new construction for high pressure lines (as a percent)	75.00%
Term of lease	10 years
Percentage of rate of return	13.00%
Term for rate of return on constructions	7 years
Centralized compression capacity commitment percentage, Minimum	70.00%
Antero Midstream Corporation \| Marcellus
Leases
Minimum volume commitments that require Antero to utilize or pay certain percentage of the capacity of new construction of compressor stations (as a percent)	25.00%
Term of lease	10 years
Gathering and Compression Agreement \| Antero Midstream Corporation \| Marcellus
Leases
Term of lease	12 years
Number of days from date of asset in service considered for lease term \| D	90
Gathering and Compression Agreement \| Mountaineer \| Antero Midstream Corporation
Leases
Minimum volume commitments \| item								0
Affiliated Entity
Leases
Accounts payable		118,618		118,618			$ 101,454
Affiliated Entity \| Antero Midstream Corporation
Leases
Accounts payable		$ 90,000		$ 90,000			$ 85,000