v2.4.1.9

Net Income Per Limited Partner Unit (Details1) (USD $) | 0 Months Ended | 2 Months Ended | 3 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Feb. 02, 2015 | Dec. 31, 2014 | Dec. 31, 2014 | Dec. 31, 2014
Earnings Per Unit [Abstract] |  |  |  |
Distribution declared |  | $ 14,322,000 am_DistributionMadeToPartnerCashDistributionsDeclared |  |
Distributions in excess of earnings |  | (6,900,000)am_DisributionsInExcessOfEarnings |  |
Net income loss allocated to limited partners post Ipo |  | 7,422,000 am_NetIncomeLossAllocatedToLimitedPartnersPostIpo |  | 7,422,000 am_NetIncomeLossAllocatedToLimitedPartnersPostIpo
Weighted average units outstanding: |  |  |  |
Basic and diluted |  | 151,882 us-gaap_WeightedAverageNumberOfLimitedPartnershipAndGeneralPartnershipUnitOutstandingBasicAndDiluted |  |
Net income attributable to Antero Midstream Partners LP subsequent to IPO per limited unit partner unit |  |  |  |
Cash distribution declared | $ 0.0943 us-gaap_DistributionMadeToLimitedPartnerDistributionsDeclaredPerUnit |  | $ 0.0943 us-gaap_DistributionMadeToLimitedPartnerDistributionsDeclaredPerUnit |
Quarterly cash distribution | 14,000,000 us-gaap_DistributionMadeToLimitedPartnerCashDistributionsDeclared |  |  |
Minimum |  |  |  |
Net income attributable to Antero Midstream Partners LP subsequent to IPO per limited unit partner unit |  |  |  |
Limited partner minimum quarterly distribution per partnership agreement |  | 0.17 am_LimitedPartnerMinimumQuarterlyDistributionPerPartnershipAgreement / us-gaap_RangeAxis = us-gaap_MinimumMember |  |
Minimum quarterly cash distribution (per unit) |  | 0.17 am_LimitedPartnerMinimumQuarterlyDistributionPerPartnershipAgreement / us-gaap_RangeAxis = us-gaap_MinimumMember |  |
Common units | Limited Partner |  |  |  |
Earnings Per Unit [Abstract] |  |  |  |
Distribution declared |  | 7,161,000 am_DistributionMadeToPartnerCashDistributionsDeclared / us-gaap_PartnerCapitalComponentsAxis = am_CommonUnitsMember / us-gaap_PartnerTypeOfPartnersCapitalAccountAxis = us-gaap_LimitedPartnerMember |  |
Distributions in excess of earnings |  | (3,450,000)am_DisributionsInExcessOfEarnings / us-gaap_PartnerCapitalComponentsAxis = am_CommonUnitsMember / us-gaap_PartnerTypeOfPartnersCapitalAccountAxis = us-gaap_LimitedPartnerMember |  |
Net income loss allocated to limited partners post Ipo |  | 3,711,000 am_NetIncomeLossAllocatedToLimitedPartnersPostIpo / us-gaap_PartnerCapitalComponentsAxis = am_CommonUnitsMember / us-gaap_PartnerTypeOfPartnersCapitalAccountAxis = us-gaap_LimitedPartnerMember |  |
Weighted average units outstanding: |  |  |  |
Basic and diluted |  | 75,941 us-gaap_WeightedAverageNumberOfLimitedPartnershipAndGeneralPartnershipUnitOutstandingBasicAndDiluted / us-gaap_PartnerCapitalComponentsAxis = am_CommonUnitsMember / us-gaap_PartnerTypeOfPartnersCapitalAccountAxis = us-gaap_LimitedPartnerMember |  |
Net income attributable to Antero Midstream Partners LP subsequent to IPO per limited unit partner unit |  |  |  |
Total earnings per unit |  | $ 0.05 us-gaap_EarningsPerShareBasicAndDiluted / us-gaap_PartnerCapitalComponentsAxis = am_CommonUnitsMember / us-gaap_PartnerTypeOfPartnersCapitalAccountAxis = us-gaap_LimitedPartnerMember |  |
Subordinated units | Limited Partner |  |  |  |
Earnings Per Unit [Abstract] |  |  |  |
Distribution declared |  | 7,161,000 am_DistributionMadeToPartnerCashDistributionsDeclared / us-gaap_PartnerCapitalComponentsAxis = am_SubordinatedUnitsMember / us-gaap_PartnerTypeOfPartnersCapitalAccountAxis = us-gaap_LimitedPartnerMember |  |
Distributions in excess of earnings |  | (3,450,000)am_DisributionsInExcessOfEarnings / us-gaap_PartnerCapitalComponentsAxis = am_SubordinatedUnitsMember / us-gaap_PartnerTypeOfPartnersCapitalAccountAxis = us-gaap_LimitedPartnerMember |  |
Net income loss allocated to limited partners post Ipo |  | $ 3,711,000 am_NetIncomeLossAllocatedToLimitedPartnersPostIpo / us-gaap_PartnerCapitalComponentsAxis = am_SubordinatedUnitsMember / us-gaap_PartnerTypeOfPartnersCapitalAccountAxis = us-gaap_LimitedPartnerMember |  |
Weighted average units outstanding: |  |  |  |
Basic and diluted |  | 75,941 us-gaap_WeightedAverageNumberOfLimitedPartnershipAndGeneralPartnershipUnitOutstandingBasicAndDiluted / us-gaap_PartnerCapitalComponentsAxis = am_SubordinatedUnitsMember / us-gaap_PartnerTypeOfPartnersCapitalAccountAxis = us-gaap_LimitedPartnerMember |  |
Net income attributable to Antero Midstream Partners LP subsequent to IPO per limited unit partner unit |  |  |  |
Total earnings per unit |  | $ 0.05 us-gaap_EarningsPerShareBasicAndDiluted / us-gaap_PartnerCapitalComponentsAxis = am_SubordinatedUnitsMember / us-gaap_PartnerTypeOfPartnersCapitalAccountAxis = us-gaap_LimitedPartnerMember |  |

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- Definition Aggregate amount of net income allocated to limited partners subsequent to IPO. + References No definition available. + Details
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- Definition Amount of equity impact of cash distribution declared to unit-holder of limited partnership (LP). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 272 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6373374&loc=d3e70478-108055 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 272 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6373374&loc=d3e70434-108055 + Details
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- Definition The amount of net income or loss for the period per each share in instances when basic and diluted earnings per share are the same amount and reported as a single line item on the face of the financial statements. Basic earnings per share is the amount of net income or loss for the period per each share of common stock or unit outstanding during the reporting period. Diluted earnings per share includes the amount of net income or loss for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. + References No definition available. + Details
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- Definition The average number of limited partnership and general partnership units issued and outstanding that are used in calculating basic and diluted earnings per limited partnership and general partnership unit. + References No definition available. + Details
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