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v2.4.1.9

Related party transactions (Details) (USD $) | 3 Months Ended |  |
--- | --- | --- | ---
Mar. 31, 2015 | Mar. 31, 2014 | Dec. 31, 2014 | Nov. 30, 2012
Related Party Transaction |  |  |  |
Payable to (receivable from) affiliate | $ 2,609,000 us-gaap_DueToRelatedPartiesCurrentAndNoncurrent |  |  |
AH LLC |  |  |  |
Related Party Transaction |  |  |  |
Equity interest rate (as a percent) | 21.80%us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = amh_SponsorMember |  | 21.80%us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = amh_SponsorMember |
Payable to (receivable from) affiliate | 2,600,000 us-gaap_DueToRelatedPartiesCurrentAndNoncurrent / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = amh_SponsorMember |  | (4,000,000)us-gaap_DueToRelatedPartiesCurrentAndNoncurrent / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = amh_SponsorMember |
AH LLC | Class A common shares |  |  |  |
Related Party Transaction |  |  |  |
Equity interest rate (as a percent) | 3.30%us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = amh_SponsorMember / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember |  | 3.30%us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = amh_SponsorMember / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember |
AH LLC | Class B common shares |  |  |  |
Related Party Transaction |  |  |  |
Shares owned | 635,075 amh_NoncontrollingInterestSharesOwned / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = amh_SponsorMember / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember |  | 635,075 amh_NoncontrollingInterestSharesOwned / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = amh_SponsorMember / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember |
AH LLC | Agreement on Investment Opportunities |  |  |  |
Related Party Transaction |  |  |  |
Acquisition and renovation fee in percent |  |  |  | 5.00%amh_AcquisitionAndRenovationFeePercent / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = amh_SponsorMember / us-gaap_TypeOfArrangementAxis = amh_AgreementOnInvestmentOpportunitiesMember
Monthly maintenance fee | 100,000 amh_MonthlyPaymentRequiredFromRelatedPartyForUseOfIntellectualProperty / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = amh_SponsorMember / us-gaap_TypeOfArrangementAxis = amh_AgreementOnInvestmentOpportunitiesMember |  |  |
Acquisition and renovation fees |  | 17,600,000 amh_AcquisitionAndRenovationFee / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = amh_SponsorMember / us-gaap_TypeOfArrangementAxis = amh_AgreementOnInvestmentOpportunitiesMember |  |
Asset acquisition cost |  | 17,300,000 us-gaap_AcquisitionCosts / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = amh_SponsorMember / us-gaap_TypeOfArrangementAxis = amh_AgreementOnInvestmentOpportunitiesMember |  |
Property acquisition cost |  | 300,000 amh_CostsRelatedToPropertyAcquisitionsWithInPlaceLeases / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = amh_SponsorMember / us-gaap_TypeOfArrangementAxis = amh_AgreementOnInvestmentOpportunitiesMember |  |
MMI |  |  |  |
Related Party Transaction |  |  |  |
Administrative expenses paid to related party |  | $ 9,000,000 amh_AdvisoryManagementExpense / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = amh_MalibuManagementIncMember |  |
Operating Partnership | Series C Convertible Units |  |  |  |
Related Party Transaction |  |  |  |
Units owned (in shares) | 31,085,974 amh_NoncontrollingInterestUnitsOwnedInOperatingPartnership / us-gaap_CapitalUnitsByClassAxis = amh_SeriesCConvertibleUnitsMember / dei_LegalEntityAxis = amh_OperatingPartnershipLegalEntityMember |  | 31,085,974 amh_NoncontrollingInterestUnitsOwnedInOperatingPartnership / us-gaap_CapitalUnitsByClassAxis = amh_SeriesCConvertibleUnitsMember / dei_LegalEntityAxis = amh_OperatingPartnershipLegalEntityMember |
Operating Partnership | Class A common shares |  |  |  |
Related Party Transaction |  |  |  |
Units owned (in shares) | 14,440,670 amh_NoncontrollingInterestUnitsOwnedInOperatingPartnership / dei_LegalEntityAxis = amh_OperatingPartnershipLegalEntityMember / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember |  | 14,440,670 amh_NoncontrollingInterestUnitsOwnedInOperatingPartnership / dei_LegalEntityAxis = amh_OperatingPartnershipLegalEntityMember / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember |
Operating Partnership | AH LLC | Class A Units |  |  |  |
Related Party Transaction |  |  |  |
Equity interest rate (as a percent) | 6.40%us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners / us-gaap_CapitalUnitsByClassAxis = amh_ClassAUnitsMember / dei_LegalEntityAxis = amh_OperatingPartnershipLegalEntityMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = amh_SponsorMember |  | 6.40%us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners / us-gaap_CapitalUnitsByClassAxis = amh_ClassAUnitsMember / dei_LegalEntityAxis = amh_OperatingPartnershipLegalEntityMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = amh_SponsorMember |
Units owned (in shares) | 14,440,670 amh_NoncontrollingInterestUnitsOwnedInOperatingPartnership / us-gaap_CapitalUnitsByClassAxis = amh_ClassAUnitsMember / dei_LegalEntityAxis = amh_OperatingPartnershipLegalEntityMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = amh_SponsorMember |  | 14,440,670 amh_NoncontrollingInterestUnitsOwnedInOperatingPartnership / us-gaap_CapitalUnitsByClassAxis = amh_ClassAUnitsMember / dei_LegalEntityAxis = amh_OperatingPartnershipLegalEntityMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = amh_SponsorMember |
Operating Partnership | AH LLC | Series C Convertible Units |  |  |  |
Related Party Transaction |  |  |  |
Units owned (in shares) | 31,085,974 amh_NoncontrollingInterestUnitsOwnedInOperatingPartnership / us-gaap_CapitalUnitsByClassAxis = amh_SeriesCConvertibleUnitsMember / dei_LegalEntityAxis = amh_OperatingPartnershipLegalEntityMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = amh_SponsorMember |  | 31,085,974 amh_NoncontrollingInterestUnitsOwnedInOperatingPartnership / us-gaap_CapitalUnitsByClassAxis = amh_SeriesCConvertibleUnitsMember / dei_LegalEntityAxis = amh_OperatingPartnershipLegalEntityMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = amh_SponsorMember |
Operating Partnership | AH LLC | Series D Convertible Units |  |  |  |
Related Party Transaction |  |  |  |
Units owned (in shares) | 4,375,000 amh_NoncontrollingInterestUnitsOwnedInOperatingPartnership / us-gaap_CapitalUnitsByClassAxis = amh_SeriesDConvertibleUnitsMember / dei_LegalEntityAxis = amh_OperatingPartnershipLegalEntityMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = amh_SponsorMember |  | 4,375,000 amh_NoncontrollingInterestUnitsOwnedInOperatingPartnership / us-gaap_CapitalUnitsByClassAxis = amh_SeriesDConvertibleUnitsMember / dei_LegalEntityAxis = amh_OperatingPartnershipLegalEntityMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = amh_SponsorMember |
Operating Partnership | AH LLC | Series E Convertible Units |  |  |  |
Related Party Transaction |  |  |  |
Units owned (in shares) | 4,375,000 amh_NoncontrollingInterestUnitsOwnedInOperatingPartnership / us-gaap_CapitalUnitsByClassAxis = amh_SeriesEConvertibleUnitsMember / dei_LegalEntityAxis = amh_OperatingPartnershipLegalEntityMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = amh_SponsorMember |  | 4,375,000 amh_NoncontrollingInterestUnitsOwnedInOperatingPartnership / us-gaap_CapitalUnitsByClassAxis = amh_SeriesEConvertibleUnitsMember / dei_LegalEntityAxis = amh_OperatingPartnershipLegalEntityMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = amh_SponsorMember |

X
- Definition Acquisition And Renovation Fee. + References No definition available. + Details
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- Definition Percentage of fee paid to AH LLC, in relation to acquisition and renovation services rendered to the Company. + References No definition available. + Details
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- Definition The capitalized costs incurred during the period (excluded from amortization) to purchase, lease or otherwise acquire an unproved property, including costs of lease bonuses and options to purchase or lease properties, the portion of costs applicable to minerals when land including mineral rights is purchased in fee, brokers' fees, recording fees, legal costs, and other costs incurred in acquiring properties. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-10.(c)(7)(ii)) -URI http://asc.fasb.org/extlink&oid=27015464&loc=d3e511914-122862 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 10 -Paragraph c -Subparagraph 3(ii)(A) -Article 4 + Details
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