Represents the issue price of the debt instrument as a percentage of its face value.

No definition available.

Name:	ar_DebtInstrumentIssuePriceAsPercentageOfFaceValue
Namespace Prefix:	ar_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Basis points added to the reference rate related to Investment Grade Periods.

+ References

No definition available.

+ Details

Name:	ar_DebtInstrumentMarginRates
Namespace Prefix:	ar_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the redemption price as a percentage of the principal amount at which the debt instrument may be required to be repurchased in the event of a change of control.

+ References

No definition available.

+ Details

Name:	ar_DebtInstrumentRedemptionPriceUponChangeOfControlAsPercentageOfPrincipalAmount
Namespace Prefix:	ar_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the borrowing base under the credit facility.

+ References

No definition available.

+ Details

Name:	ar_LineOfCreditFacilityBorrowingBase
Namespace Prefix:	ar_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility during an Investment Grade period.

+ References

No definition available.

+ Details

Name:	ar_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentageDuringInvestmentGradePeriod
Namespace Prefix:	ar_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the redemption price as a percentage of the principal amount at which the debt instrument may be redeemed in the event of a change of control.

+ References

No definition available.

+ Details

Name:	ar_LongTermDebtRedemptionPriceDueToChangeOfControlAsPercentageOfPrincipalAmount
Namespace Prefix:	ar_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the redemption price as a percentage of the principal amount at which the debt instruments may be redeemed with net proceeds of certain equity offerings.

+ References

No definition available.

+ Details

Name:	ar_LongTermDebtRedemptionPriceWithNetProceedsFromEquityOfferingsAsPercentageOfPrincipalAmount
Namespace Prefix:	ar_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the percentage of the aggregate principal amount of debt instruments that may be redeemed with net proceeds of certain equity offerings.

+ References

No definition available.

+ Details

Name:	ar_LongTermDebtRedemptionWithNetProceedsFromEquityOfferingsAsPercentageOfPrincipalAmount
Namespace Prefix:	ar_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Time period prior to maturity date of senior notes as one option for maturity date of Credit Facility.

+ References

No definition available.

+ Details

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

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28551-108399

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400

+ Details

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

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

+ Details

Name:	us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
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

No definition available.

+ Details

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

- Definition

Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
-Paragraph 3
-Subparagraph e
-URI http://asc.fasb.org/extlink&oid=75038535&loc=d3e64711-112823

+ Details

Name:	us-gaap_DebtInstrumentRedemptionPricePercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount, after accumulated amortization, of debt discount (premium).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28555-108399

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28551-108399

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28567-108399

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 1A
-URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28541-108399

Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400

+ Details

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

- Definition

Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 50
-Section 40
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=114001942&loc=d3e12355-112629

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 50
-Section 40
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=114001942&loc=d3e12317-112629

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585

+ Details

Name:	us-gaap_GainsLossesOnExtinguishmentOfDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

+ References

No definition available.

+ Details

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

- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ 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(22))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(16))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

+ Details

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

- Definition

Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

+ References

+ Details

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

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

+ Details

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

- Definition

The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

+ References

No definition available.

+ Details

Name:	us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

+ Details

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

- Definition

The carrying value as of the balance sheet date of the noncurrent portion of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ 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 210.5-02.22)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section 45
-Paragraph 14
-URI http://asc.fasb.org/extlink&oid=99376301&loc=d3e1336-112600

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section 45
-Paragraph 13
-URI http://asc.fasb.org/extlink&oid=99376301&loc=d3e1314-112600

+ Details

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

- Definition

Carrying value as of the balance sheet date of notes payable (with maturities initially due after one year or beyond the operating cycle if longer), excluding current portion.

+ References

+ Details

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

- Definition

Weighted average interest rate of long-term debt outstanding calculated at point in time.

+ References

No definition available.

+ Details

Name:	us-gaap_LongtermDebtWeightedAverageInterestRate
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

The remaining balance of debt issuance expenses that were capitalized and are being amortized against income over the lives of the respective bond issues. This does not include the amounts capitalized as part of the cost of the utility plant or asset.

+ References

+ Details

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

- Details

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

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_InternalCreditAssessmentAxis=us-gaap_InternalNoninvestmentGradeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_InternalCreditAssessmentAxis=us-gaap_InternalInvestmentGradeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=ar_SeniorNotes5.375PercentDue2021Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentRedemptionPeriodAxis=ar_DebtInstrumentRedemptionPeriodOnOrAfter1November2019Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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

- Details

Name:	us-gaap_BalanceSheetLocationAxis=us-gaap_OtherCurrentLiabilitiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=us-gaap_PrimeRateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=ar_SeniorNotes5125PercentDue2022Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentRedemptionPeriodAxis=ar_DebtInstrumentRedemptionPeriodOnOrAfterJune12020Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=ar_SeniorNotes5625PercentDue2023Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentRedemptionPeriodAxis=ar_DebtInstrumentRedemptionPeriodOnOrAfterJune12021Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=ar_SeniorNotes500PercentDue2025Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentRedemptionPeriodAxis=ar_DebtInstrumentRedemptionPeriodPriorTo01March2020Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentRedemptionPeriodAxis=ar_DebtInstrumentRedemptionPeriodOnOrBefore01March2020Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentRedemptionPeriodAxis=ar_DebtInstrumentRedemptionPeriodOnOrAfter01March2020Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentRedemptionPeriodAxis=ar_DebtInstrumentRedemptionPeriodOnOrAfter01March2023Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	dei_LegalEntityAxis=ar_AnteroMidstreamPartnersLpMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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

- Details

Name:	us-gaap_LongtermDebtTypeAxis=ar_SeniorNotes5375PercentDue2024Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentRedemptionPeriodAxis=ar_DebtInstrumentRedemptionPeriodOnOrAfter15September2019Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentRedemptionPeriodAxis=ar_DebtInstrumentRedemptionPeriodOnOrAfter15September2022Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentRedemptionPeriodAxis=ar_DebtInstrumentRedemptionPeriodPriorTo15September2019Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Long-Term Debt (Details) - USD ($) $ in Thousands	12 Months Ended
Long-Term Debt (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 21, 2016	Sep. 13, 2016	Mar. 17, 2015	Sep. 18, 2014	May 06, 2014	Nov. 05, 2013
Long- term Debt
Net unamortized premium	$ 1,241	$ 1,520
Net unamortized debt issuance costs	(26,700)	(32,430)
Long-term debt	5,461,688	4,800,090
Loss on Early Extinguishment of Debt		(1,500)	$ (16,956)
Credit Facility
Long- term Debt
Bank credit facility long-term debt	405,000	$ 185,000
Current borrowing base	4,500
Lender commitments	$ 2,500
Time period prior to maturity date of senior notes as one option for maturity date of Credit Facility	91 days
Weighted average interest rate (as a percent)	3.95%	2.96%
Outstanding letters of credit	$ 685,000	$ 705,000
Credit Facility \| Minimum
Long- term Debt
Commitment fees on the unused portion during any period that is not an Investment Grade Period (as a percent)	0.30%
Commitment fees on the unused portion during an Investment Grade period (as a percent)	0.15%
Credit Facility \| Minimum \| Not Investment Grade Period
Long- term Debt
Basis points added to the reference rate	0.25%
Credit Facility \| Minimum \| Investment Grade Period
Long- term Debt
Basis points added to the reference rate	0.125%
Credit Facility \| Maximum
Long- term Debt
Commitment fees on the unused portion during any period that is not an Investment Grade Period (as a percent)	0.375%
Commitment fees on the unused portion during an Investment Grade period (as a percent)	0.30%
Credit Facility \| Maximum \| Not Investment Grade Period
Long- term Debt
Basis points added to the reference rate	2.25%
Credit Facility \| Maximum \| Investment Grade Period
Long- term Debt
Basis points added to the reference rate	1.75%
5.375% senior notes due 2021
Long- term Debt
Long-term notes payable	$ 1,000,000	1,000,000
Interest rate (as a percent)									5.375%
Senior notes issued									$ 1,000,000
Issue price as percentage of par value									100.00%
Redemption price of the debt instrument in the event of change of control (as a percent)	101.00%
Redemption price	101.344%
5.375% senior notes due 2021 \| On or after November 1, 2019
Long- term Debt
Redemption price	100.00%
Stand-alone revolving note
Long- term Debt
Maximum amount of the Credit Facility	$ 25,000
Stand-alone revolving note \| Other Current Liabilities [Member]
Long- term Debt
Outstanding balance	$ 5,400	0
Stand-alone revolving note \| Lender's Prime Rate
Long- term Debt
Basis spread on variable rate (as a percent)	1.00%
5.125 senior notes due 2022
Long- term Debt
Long-term notes payable	$ 1,100,000	1,100,000
Interest rate (as a percent)								5.125%
Senior notes issued							$ 500,000	$ 600,000
Issue price as percentage of par value							100.50%	100.00%
Redemption price	102.563%
Redemption price at which notes may be required to be repurchased in event of change of control	101.00%
5.125 senior notes due 2022 \| On or after June 1, 2020
Long- term Debt
Redemption price of the debt instrument in the event of change of control (as a percent)	100.00%
5.625% senior notes due 2023
Long- term Debt
Long-term notes payable	$ 750,000	750,000
Interest rate (as a percent)						5.625%
Senior notes issued						$ 750,000
Issue price as percentage of par value	100.00%
Redemption price	104.219%
Redemption price at which notes may be required to be repurchased in event of change of control	101.00%
5.625% senior notes due 2023 \| On Or After June 1, 2021
Long- term Debt
Redemption price	100.00%
5.00% senior notes due 2025
Long- term Debt
Long-term notes payable	$ 600,000	600,000
Interest rate (as a percent)				5.00%
Senior notes issued				$ 600,000
Issue price as percentage of par value				100.00%
Redemption price at which notes may be required to be repurchased in event of change of control	101.00%
5.00% senior notes due 2025 \| Prior to March 1, 2020
Long- term Debt
Redemption price	100.00%
5.00% senior notes due 2025 \| On or before March 1, 2020
Long- term Debt
Percentage of the principal amount of the debt instrument which the entity may redeem with the proceeds from certain equity offerings	35.00%
Redemption price of the debt instrument if redeemed with the proceeds of certain equity offerings (as a percent)	105.00%
5.00% senior notes due 2025 \| On or after March 1, 2020
Long- term Debt
Redemption price	103.75%
5.00% senior notes due 2025 \| On or after March1, 2023
Long- term Debt
Redemption price	100.00%
Antero Midstream Partners LP
Long- term Debt
Net unamortized debt issuance costs	$ (7,853)	(9,000)
Antero Midstream Partners LP \| Midstream Credit Facility
Long- term Debt
Bank credit facility long-term debt	990,000	$ 555,000
Maximum amount of the Credit Facility	$ 2,000,000
Weighted average interest rate (as a percent)	3.75%	2.81%
Antero Midstream Partners LP \| Midstream Credit Facility \| Minimum
Long- term Debt
Commitment fees on the unused portion during any period that is not an Investment Grade Period (as a percent)	0.25%
Commitment fees on the unused portion during an Investment Grade period (as a percent)	0.175%
Antero Midstream Partners LP \| Midstream Credit Facility \| Minimum \| Not Investment Grade Period
Long- term Debt
Basis points added to the reference rate	0.25%
Antero Midstream Partners LP \| Midstream Credit Facility \| Minimum \| Investment Grade Period
Long- term Debt
Basis points added to the reference rate	0.125%
Antero Midstream Partners LP \| Midstream Credit Facility \| Maximum
Long- term Debt
Commitment fees on the unused portion during any period that is not an Investment Grade Period (as a percent)	0.375%
Commitment fees on the unused portion during an Investment Grade period (as a percent)	0.375%
Antero Midstream Partners LP \| Midstream Credit Facility \| Maximum \| Not Investment Grade Period
Long- term Debt
Basis points added to the reference rate	2.25%
Antero Midstream Partners LP \| Midstream Credit Facility \| Maximum \| Investment Grade Period
Long- term Debt
Basis points added to the reference rate	2.00%
Antero Midstream Partners LP \| 5.375% senior notes due 2024
Long- term Debt
Long-term notes payable	$ 650,000	$ 650,000
Senior notes issued					$ 650,000
Issue price as percentage of par value					5.375%
Redemption price at which notes may be required to be repurchased in event of change of control	101.00%
Antero Midstream Partners LP \| 5.375% senior notes due 2024 \| On or after September 15, 2019
Long- term Debt
Redemption price	104.031%
Antero Midstream Partners LP \| 5.375% senior notes due 2024 \| On or after September 15, 2022
Long- term Debt
Redemption price	100.00%
Antero Midstream Partners LP \| 5.375% senior notes due 2024 \| Prior to September 15, 2019
Long- term Debt
Redemption price	100.00%
Percentage of the principal amount of the debt instrument which the entity may redeem with the proceeds from certain equity offerings	35.00%
Redemption price of the debt instrument if redeemed with the proceeds of certain equity offerings (as a percent)	105.375%