Annual report pursuant to Section 13 and 15(d)

Consolidated Statements of Equity

v2.4.1.9
Consolidated Statements of Equity (USD $)
In Thousands, unless otherwise specified
Parent [Member]
Predecessor
Common Unitholders Public [Member]
Common Unitholders Antero [Member]
Subordinated Unitholder Antero [Member]
Total
Balance at Dec. 31, 2011 $ 29,002am_ParentNetInvestment
/ dei_LegalEntityAxis
= us-gaap_ParentMember
/ us-gaap_StatementScenarioAxis
= us-gaap_PredecessorMember
      $ 29,002am_ParentNetInvestment
Class of Stock [Line Items]          
Net income (loss) and comprehensive income (loss) (4,586)us-gaap_NetIncomeLossAllocatedToLimitedPartners
/ dei_LegalEntityAxis
= us-gaap_ParentMember
/ us-gaap_StatementScenarioAxis
= us-gaap_PredecessorMember
      (4,586)us-gaap_NetIncomeLossAllocatedToLimitedPartners
Deemed contribution from parent, net 118,446am_DeemedContributionFromParentNet
/ dei_LegalEntityAxis
= us-gaap_ParentMember
/ us-gaap_StatementScenarioAxis
= us-gaap_PredecessorMember
      118,446am_DeemedContributionFromParentNet
Balance at Dec. 31, 2012 142,862am_ParentNetInvestment
/ dei_LegalEntityAxis
= us-gaap_ParentMember
/ us-gaap_StatementScenarioAxis
= us-gaap_PredecessorMember
      142,862am_ParentNetInvestment
Class of Stock [Line Items]          
Net income (loss) and comprehensive income (loss) (14,332)us-gaap_NetIncomeLossAllocatedToLimitedPartners
/ dei_LegalEntityAxis
= us-gaap_ParentMember
/ us-gaap_StatementScenarioAxis
= us-gaap_PredecessorMember
      (14,332)us-gaap_NetIncomeLossAllocatedToLimitedPartners
Deemed contribution from parent, net 388,059am_DeemedContributionFromParentNet
/ dei_LegalEntityAxis
= us-gaap_ParentMember
/ us-gaap_StatementScenarioAxis
= us-gaap_PredecessorMember
      388,059am_DeemedContributionFromParentNet
Equity-based compensation 15,931us-gaap_ShareBasedCompensation
/ dei_LegalEntityAxis
= us-gaap_ParentMember
/ us-gaap_StatementScenarioAxis
= us-gaap_PredecessorMember
      15,931us-gaap_ShareBasedCompensation
Balance at Dec. 31, 2013         532,520us-gaap_PartnersCapital
Balance at Dec. 31, 2013 532,520am_ParentNetInvestment
/ dei_LegalEntityAxis
= us-gaap_ParentMember
/ us-gaap_StatementScenarioAxis
= us-gaap_PredecessorMember
      532,520am_ParentNetInvestment
Class of Stock [Line Items]          
Net income (loss) and comprehensive income (loss) 9,410us-gaap_NetIncomeLossAllocatedToLimitedPartners
/ dei_LegalEntityAxis
= us-gaap_ParentMember
/ us-gaap_StatementScenarioAxis
= us-gaap_PredecessorMember
      9,410us-gaap_NetIncomeLossAllocatedToLimitedPartners
Deemed contribution from parent, net 29,764am_DeemedContributionFromParentNet
/ dei_LegalEntityAxis
= us-gaap_ParentMember
/ us-gaap_StatementScenarioAxis
= us-gaap_PredecessorMember
      29,764am_DeemedContributionFromParentNet
Equity-based compensation 6,351us-gaap_ShareBasedCompensation
/ dei_LegalEntityAxis
= us-gaap_ParentMember
/ us-gaap_StatementScenarioAxis
= us-gaap_PredecessorMember
      6,351us-gaap_ShareBasedCompensation
Balance at Nov. 10, 2014 578,045am_ParentNetInvestment
/ dei_LegalEntityAxis
= us-gaap_ParentMember
/ us-gaap_StatementScenarioAxis
= us-gaap_PredecessorMember
      578,045am_ParentNetInvestment
Class of Stock [Line Items]          
Alloction of net investment to unitholders (578,045)am_AllocationNetInvestmentToUnitholders
/ dei_LegalEntityAxis
= us-gaap_ParentMember
/ us-gaap_StatementScenarioAxis
= us-gaap_PredecessorMember
  163,458am_AllocationNetInvestmentToUnitholders
/ us-gaap_StatementClassOfStockAxis
= am_CommonUnitholdersAnteroMember
414,587am_AllocationNetInvestmentToUnitholders
/ us-gaap_StatementClassOfStockAxis
= am_SubordinatedUnitholderAnteroMember
 
Net proceeds from IPO   1,087,224us-gaap_PartnersCapitalAccountPublicSaleOfUnits
/ us-gaap_StatementClassOfStockAxis
= am_CommonUnitholdersPublicMember
    1,087,224us-gaap_PartnersCapitalAccountPublicSaleOfUnits
Distribution to Antero     (94,023)us-gaap_PartnersCapitalAccountDistributions
/ us-gaap_StatementClassOfStockAxis
= am_CommonUnitholdersAnteroMember
(238,477)us-gaap_PartnersCapitalAccountDistributions
/ us-gaap_StatementClassOfStockAxis
= am_SubordinatedUnitholderAnteroMember
(332,500)us-gaap_PartnersCapitalAccountDistributions
Net income loss attributable Antero Midstream Partners LP Post Ipo   2,248am_NetIncomeLossAttributableAnteroMidstreamPartnersLpPostIpo
/ us-gaap_StatementClassOfStockAxis
= am_CommonUnitholdersPublicMember
1,463am_NetIncomeLossAttributableAnteroMidstreamPartnersLpPostIpo
/ us-gaap_StatementClassOfStockAxis
= am_CommonUnitholdersAnteroMember
3,711am_NetIncomeLossAttributableAnteroMidstreamPartnersLpPostIpo
/ us-gaap_StatementClassOfStockAxis
= am_SubordinatedUnitholderAnteroMember
7,422am_NetIncomeLossAttributableAnteroMidstreamPartnersLpPostIpo
Equity-based compensation   565us-gaap_ShareBasedCompensation
/ us-gaap_StatementClassOfStockAxis
= am_CommonUnitholdersPublicMember
767us-gaap_ShareBasedCompensation
/ us-gaap_StatementClassOfStockAxis
= am_CommonUnitholdersAnteroMember
936us-gaap_ShareBasedCompensation
/ us-gaap_StatementClassOfStockAxis
= am_SubordinatedUnitholderAnteroMember
2,268us-gaap_ShareBasedCompensation
Balance at Dec. 31, 2014   $ 1,090,037us-gaap_PartnersCapital
/ us-gaap_StatementClassOfStockAxis
= am_CommonUnitholdersPublicMember
$ 71,665us-gaap_PartnersCapital
/ us-gaap_StatementClassOfStockAxis
= am_CommonUnitholdersAnteroMember
$ 180,757us-gaap_PartnersCapital
/ us-gaap_StatementClassOfStockAxis
= am_SubordinatedUnitholderAnteroMember
$ 1,342,459us-gaap_PartnersCapital