v2.4.1.9

Consolidated Balance Sheets (Parenthetical) | Dec. 31, 2014
--- | ---
Common Unitholders Public [Member] |
Common unitholders units issued | 46,000,000 us-gaap_LimitedPartnersCapitalAccountUnitsIssued / us-gaap_StatementClassOfStockAxis = am_CommonUnitholdersPublicMember
Common unitholders units outstanding | 46,000,000 us-gaap_LimitedPartnersCapitalAccountUnitsOutstanding / us-gaap_StatementClassOfStockAxis = am_CommonUnitholdersPublicMember
Common Unitholders Antero [Member] |
Common unitholders units issued | 29,940,957 us-gaap_LimitedPartnersCapitalAccountUnitsIssued / us-gaap_StatementClassOfStockAxis = am_CommonUnitholdersAnteroMember
Common unitholders units outstanding | 29,940,957 us-gaap_LimitedPartnersCapitalAccountUnitsOutstanding / us-gaap_StatementClassOfStockAxis = am_CommonUnitholdersAnteroMember
Subordinated Unitholder Antero [Member] |
Common unitholders units issued | 75,940,957 us-gaap_LimitedPartnersCapitalAccountUnitsIssued / us-gaap_StatementClassOfStockAxis = am_SubordinatedUnitholderAnteroMember
Common unitholders units outstanding | 75,940,957 us-gaap_LimitedPartnersCapitalAccountUnitsOutstanding / us-gaap_StatementClassOfStockAxis = am_SubordinatedUnitholderAnteroMember

X
- Definition The number of limited partner units issued. + References Reference 1: 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 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 5 -Subparagraph (SAB TOPIC 4.F) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187171-122770 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 4 -Section F + Details
Name: | us-gaap_LimitedPartnersCapitalAccountUnitsIssued
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition The number of limited partner units outstanding. + References Reference 1: 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 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 5 -Subparagraph (SAB TOPIC 4.F) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187171-122770 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 4 -Section F + Details
Name: | us-gaap_LimitedPartnersCapitalAccountUnitsOutstanding
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=am_CommonUnitholdersAnteroMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=am_CommonUnitholdersPublicMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=am_SubordinatedUnitholderAnteroMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |