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Acquisitions and Dispositions (Details) (USD $)
12 Months Ended 0 Months Ended 6 Months Ended 0 Months Ended 12 Months Ended 0 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2014
property
Jul. 01, 2014
Dec. 31, 2014
Jun. 10, 2013
Dec. 31, 2012
Dec. 12, 2014
Jun. 14, 2013
Jun. 11, 2013
Acquisitions And Dispositions                    
Cash consideration $ 74,356,000us-gaap_PaymentsToAcquireBusinessesGross                  
Estimated fair values of the net assets                    
Goodwill 120,655,000us-gaap_Goodwill 120,655,000us-gaap_Goodwill 120,655,000us-gaap_Goodwill   120,655,000us-gaap_Goodwill          
Note payable (51,644,000)us-gaap_NotesPayable   (51,644,000)us-gaap_NotesPayable   (51,644,000)us-gaap_NotesPayable          
Units issue to Sponsor, value   500,000us-gaap_NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance                
Value of units issued 11,179,000amh_PartnersCapitalAccountUnitsIssuedDuringPeriodValueAcquisitions                  
Ellington portfolio acquisiton                    
Acquisitions And Dispositions                    
Acquired of membership interests (as a percent) 100.00%us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired
/ us-gaap_BusinessAcquisitionAxis
= amh_EllingtonPortfolioAcquisitonMember
  100.00%us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired
/ us-gaap_BusinessAcquisitionAxis
= amh_EllingtonPortfolioAcquisitonMember
  100.00%us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired
/ us-gaap_BusinessAcquisitionAxis
= amh_EllingtonPortfolioAcquisitonMember
         
Number of properties acquired 914amh_NumberOfRealEstatePropertiesAcquired
/ us-gaap_BusinessAcquisitionAxis
= amh_EllingtonPortfolioAcquisitonMember
  914amh_NumberOfRealEstatePropertiesAcquired
/ us-gaap_BusinessAcquisitionAxis
= amh_EllingtonPortfolioAcquisitonMember
  914amh_NumberOfRealEstatePropertiesAcquired
/ us-gaap_BusinessAcquisitionAxis
= amh_EllingtonPortfolioAcquisitonMember
         
Purchase price     126,000,000us-gaap_BusinessCombinationConsiderationTransferred1
/ us-gaap_BusinessAcquisitionAxis
= amh_EllingtonPortfolioAcquisitonMember
             
Cash consideration     74,400,000us-gaap_PaymentsToAcquireBusinessesGross
/ us-gaap_BusinessAcquisitionAxis
= amh_EllingtonPortfolioAcquisitonMember
             
Number of properties treated as collateral     583amh_NumberOfPropertiesTreatedAsCollateral
/ us-gaap_BusinessAcquisitionAxis
= amh_EllingtonPortfolioAcquisitonMember
             
Interest rate (as percent) 4.06%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_BusinessAcquisitionAxis
= amh_EllingtonPortfolioAcquisitonMember
  4.06%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_BusinessAcquisitionAxis
= amh_EllingtonPortfolioAcquisitonMember
  4.06%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_BusinessAcquisitionAxis
= amh_EllingtonPortfolioAcquisitonMember
         
Percentage of properties leased as of acquisition date 96.30%amh_PercentageOfPropertyLeased
/ us-gaap_BusinessAcquisitionAxis
= amh_EllingtonPortfolioAcquisitonMember
  96.30%amh_PercentageOfPropertyLeased
/ us-gaap_BusinessAcquisitionAxis
= amh_EllingtonPortfolioAcquisitonMember
  96.30%amh_PercentageOfPropertyLeased
/ us-gaap_BusinessAcquisitionAxis
= amh_EllingtonPortfolioAcquisitonMember
         
Debt instrument term     5 years              
Estimated fair values of the net assets                    
Land 25,615,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLand
/ us-gaap_BusinessAcquisitionAxis
= amh_EllingtonPortfolioAcquisitonMember
  25,615,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLand
/ us-gaap_BusinessAcquisitionAxis
= amh_EllingtonPortfolioAcquisitonMember
  25,615,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLand
/ us-gaap_BusinessAcquisitionAxis
= amh_EllingtonPortfolioAcquisitonMember
         
Building and improvements 98,117,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedBuildings
/ us-gaap_BusinessAcquisitionAxis
= amh_EllingtonPortfolioAcquisitonMember
  98,117,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedBuildings
/ us-gaap_BusinessAcquisitionAxis
= amh_EllingtonPortfolioAcquisitonMember
  98,117,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedBuildings
/ us-gaap_BusinessAcquisitionAxis
= amh_EllingtonPortfolioAcquisitonMember
         
Value of in-place leases 2,268,000amh_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLease
/ us-gaap_BusinessAcquisitionAxis
= amh_EllingtonPortfolioAcquisitonMember
  2,268,000amh_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLease
/ us-gaap_BusinessAcquisitionAxis
= amh_EllingtonPortfolioAcquisitonMember
  2,268,000amh_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLease
/ us-gaap_BusinessAcquisitionAxis
= amh_EllingtonPortfolioAcquisitonMember
         
Note payable (51,644,000)us-gaap_NotesPayable
/ us-gaap_BusinessAcquisitionAxis
= amh_EllingtonPortfolioAcquisitonMember
  (51,644,000)us-gaap_NotesPayable
/ us-gaap_BusinessAcquisitionAxis
= amh_EllingtonPortfolioAcquisitonMember
  (51,644,000)us-gaap_NotesPayable
/ us-gaap_BusinessAcquisitionAxis
= amh_EllingtonPortfolioAcquisitonMember
         
Fair value of acquired assets 74,356,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet
/ us-gaap_BusinessAcquisitionAxis
= amh_EllingtonPortfolioAcquisitonMember
  74,356,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet
/ us-gaap_BusinessAcquisitionAxis
= amh_EllingtonPortfolioAcquisitonMember
  74,356,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet
/ us-gaap_BusinessAcquisitionAxis
= amh_EllingtonPortfolioAcquisitonMember
         
Management Internalization                    
Acquisitions And Dispositions                    
Acquired of membership interests (as a percent)           100.00%us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired
/ us-gaap_BusinessAcquisitionAxis
= amh_AmericanHomes4RentAdvisorLlcAndAmericanHomes4RentManagementHoldingsLlcAcquisitionMember
       
Estimated fair values of the net assets                    
Building and improvements           4,214,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedBuildings
/ us-gaap_BusinessAcquisitionAxis
= amh_AmericanHomes4RentAdvisorLlcAndAmericanHomes4RentManagementHoldingsLlcAcquisitionMember
       
Goodwill           120,655,000us-gaap_Goodwill
/ us-gaap_BusinessAcquisitionAxis
= amh_AmericanHomes4RentAdvisorLlcAndAmericanHomes4RentManagementHoldingsLlcAcquisitionMember
       
Fair value of acquired assets           130,069,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet
/ us-gaap_BusinessAcquisitionAxis
= amh_AmericanHomes4RentAdvisorLlcAndAmericanHomes4RentManagementHoldingsLlcAcquisitionMember
       
Estimated net monetary assets           7,000,000amh_NetMonetaryAssetsOfSubsidiary
/ us-gaap_BusinessAcquisitionAxis
= amh_AmericanHomes4RentAdvisorLlcAndAmericanHomes4RentManagementHoldingsLlcAcquisitionMember
       
Estimated cash and cash equivalents           9,000,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents
/ us-gaap_BusinessAcquisitionAxis
= amh_AmericanHomes4RentAdvisorLlcAndAmericanHomes4RentManagementHoldingsLlcAcquisitionMember
       
Monthly maintenance fee 100,000amh_IntellectualPropertyFee
/ us-gaap_BusinessAcquisitionAxis
= amh_AmericanHomes4RentAdvisorLlcAndAmericanHomes4RentManagementHoldingsLlcAcquisitionMember
                 
Management Internalization | Maximum                    
Estimated fair values of the net assets                    
Company's right to receive promoted interests in future outside investment (as a percent) 100.00%amh_RightToReceivePercentageOfPromotedInterestsInFutureOutsideInvestmentVehicles
/ us-gaap_BusinessAcquisitionAxis
= amh_AmericanHomes4RentAdvisorLlcAndAmericanHomes4RentManagementHoldingsLlcAcquisitionMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
                 
Management Internalization | Minimum                    
Estimated fair values of the net assets                    
Company's right to receive promoted interests in future outside investment (as a percent) 20.00%amh_RightToReceivePercentageOfPromotedInterestsInFutureOutsideInvestmentVehicles
/ us-gaap_BusinessAcquisitionAxis
= amh_AmericanHomes4RentAdvisorLlcAndAmericanHomes4RentManagementHoldingsLlcAcquisitionMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
                 
Management Internalization | Trademark                    
Estimated fair values of the net assets                    
Identified intangible assets           3,100,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles
/ us-gaap_BusinessAcquisitionAxis
= amh_AmericanHomes4RentAdvisorLlcAndAmericanHomes4RentManagementHoldingsLlcAcquisitionMember
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_TrademarksMember
       
Management Internalization | Database                    
Estimated fair values of the net assets                    
Identified intangible assets           2,100,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles
/ us-gaap_BusinessAcquisitionAxis
= amh_AmericanHomes4RentAdvisorLlcAndAmericanHomes4RentManagementHoldingsLlcAcquisitionMember
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_DatabasesMember
       
Alaska Joint Venture Acquisition                    
Acquisitions And Dispositions                    
Number of properties acquired                   4,778amh_NumberOfRealEstatePropertiesAcquired
/ us-gaap_BusinessAcquisitionAxis
= amh_AlaskaJointVentureAcquisitionMember
Percentage of properties leased as of acquisition date                   75.00%amh_PercentageOfPropertyLeased
/ us-gaap_BusinessAcquisitionAxis
= amh_AlaskaJointVentureAcquisitionMember
Estimated fair values of the net assets                    
Land                   156,648,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLand
/ us-gaap_BusinessAcquisitionAxis
= amh_AlaskaJointVentureAcquisitionMember
Building and improvements                   740,396,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedBuildings
/ us-gaap_BusinessAcquisitionAxis
= amh_AlaskaJointVentureAcquisitionMember
Receivable for net cash flows prior to acquisition date                   1,896,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables
/ us-gaap_BusinessAcquisitionAxis
= amh_AlaskaJointVentureAcquisitionMember
Value of in-place leases                   5,547,000amh_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLease
/ us-gaap_BusinessAcquisitionAxis
= amh_AlaskaJointVentureAcquisitionMember
Fair value of acquired assets                   904,487,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet
/ us-gaap_BusinessAcquisitionAxis
= amh_AlaskaJointVentureAcquisitionMember
Estimated cash and cash equivalents                   23,000,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents
/ us-gaap_BusinessAcquisitionAxis
= amh_AlaskaJointVentureAcquisitionMember
Net cash flows produced by Joint Venture                   1,896,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables
/ us-gaap_BusinessAcquisitionAxis
= amh_AlaskaJointVentureAcquisitionMember
Estimated net monetary assets                   13,000,000amh_EstimatedNetMonetaryAssets
/ us-gaap_BusinessAcquisitionAxis
= amh_AlaskaJointVentureAcquisitionMember
Beazer Rental Homes                    
Acquisitions And Dispositions                    
Acquired of membership interests (as a percent)       100.00%us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired
/ us-gaap_BusinessAcquisitionAxis
= amh_BeazerPreOwnedRentalHomesIncMember
           
Number of properties acquired       1,372amh_NumberOfRealEstatePropertiesAcquired
/ us-gaap_BusinessAcquisitionAxis
= amh_BeazerPreOwnedRentalHomesIncMember
           
Purchase price       257,400,000us-gaap_BusinessCombinationConsiderationTransferred1
/ us-gaap_BusinessAcquisitionAxis
= amh_BeazerPreOwnedRentalHomesIncMember
           
Cash consideration 4,400,000us-gaap_PaymentsToAcquireBusinessesGross
/ us-gaap_BusinessAcquisitionAxis
= amh_BeazerPreOwnedRentalHomesIncMember
    5,000,000us-gaap_PaymentsToAcquireBusinessesGross
/ us-gaap_BusinessAcquisitionAxis
= amh_BeazerPreOwnedRentalHomesIncMember
           
Amount withheld from indemnification escrow 600,000amh_AmountWithheldFromIndemnificationEscrow
/ us-gaap_BusinessAcquisitionAxis
= amh_BeazerPreOwnedRentalHomesIncMember
                 
Period of escrow       6 months            
Liabilities outstanding       108,200,000us-gaap_BusinessCombinationConsiderationTransferredLiabilitiesIncurred
/ us-gaap_BusinessAcquisitionAxis
= amh_BeazerPreOwnedRentalHomesIncMember
           
Estimated fair values of the net assets                    
Land       60,866,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLand
/ us-gaap_BusinessAcquisitionAxis
= amh_BeazerPreOwnedRentalHomesIncMember
           
Building and improvements       193,506,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedBuildings
/ us-gaap_BusinessAcquisitionAxis
= amh_BeazerPreOwnedRentalHomesIncMember
           
Receivable for net cash flows prior to acquisition date       2,197,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables
/ us-gaap_BusinessAcquisitionAxis
= amh_BeazerPreOwnedRentalHomesIncMember
           
Value of in-place leases       2,655,000amh_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLease
/ us-gaap_BusinessAcquisitionAxis
= amh_BeazerPreOwnedRentalHomesIncMember
           
Other current assets and liabilities, net       (1,785,000)amh_BusinessCombinationRecognizedIdentifiableOtherCurrentAssetsAcquiredAndOtherCurrentLiabilitiesAssumedNet
/ us-gaap_BusinessAcquisitionAxis
= amh_BeazerPreOwnedRentalHomesIncMember
           
Fair value of acquired assets       257,439,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet
/ us-gaap_BusinessAcquisitionAxis
= amh_BeazerPreOwnedRentalHomesIncMember
           
Issuance of common shares       8,158,001us-gaap_StockIssuedDuringPeriodSharesAcquisitions
/ us-gaap_BusinessAcquisitionAxis
= amh_BeazerPreOwnedRentalHomesIncMember
           
Net cash flows produced by Joint Venture       2,197,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables
/ us-gaap_BusinessAcquisitionAxis
= amh_BeazerPreOwnedRentalHomesIncMember
           
Total revenues and net income attributable to acquisitions                    
Total revenues         10,422,000us-gaap_BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual
/ us-gaap_BusinessAcquisitionAxis
= amh_BeazerPreOwnedRentalHomesIncMember
         
Net income         1,713,000us-gaap_BusinessCombinationProFormaInformationEarningsOrLossOfAcquireeSinceAcquisitionDateActual
/ us-gaap_BusinessAcquisitionAxis
= amh_BeazerPreOwnedRentalHomesIncMember
         
Series D Convertible Units | Sponsor                    
Estimated fair values of the net assets                    
Units owned (in shares) 4,375,000amh_NoncontrollingInterestUnitsOwnedInOperatingPartnership
/ us-gaap_CapitalUnitsByClassAxis
= amh_SeriesDConvertibleUnitsMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= amh_SponsorMember
4,375,000amh_NoncontrollingInterestUnitsOwnedInOperatingPartnership
/ us-gaap_CapitalUnitsByClassAxis
= amh_SeriesDConvertibleUnitsMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= amh_SponsorMember
4,375,000amh_NoncontrollingInterestUnitsOwnedInOperatingPartnership
/ us-gaap_CapitalUnitsByClassAxis
= amh_SeriesDConvertibleUnitsMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= amh_SponsorMember
  4,375,000amh_NoncontrollingInterestUnitsOwnedInOperatingPartnership
/ us-gaap_CapitalUnitsByClassAxis
= amh_SeriesDConvertibleUnitsMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= amh_SponsorMember
         
Series D Convertible Units | Operating Partnership                    
Estimated fair values of the net assets                    
Issuance of units (in shares)           4,375,000amh_PartnersCapitalAccountUnitsIssuedDuringPeriodAcquisitions
/ us-gaap_CapitalUnitsByClassAxis
= amh_SeriesDConvertibleUnitsMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_GeneralPartnerMember
       
Series E Convertible Units | Sponsor                    
Estimated fair values of the net assets                    
Units owned (in shares) 4,375,000amh_NoncontrollingInterestUnitsOwnedInOperatingPartnership
/ us-gaap_CapitalUnitsByClassAxis
= amh_SeriesEConvertibleUnitsMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= amh_SponsorMember
4,375,000amh_NoncontrollingInterestUnitsOwnedInOperatingPartnership
/ us-gaap_CapitalUnitsByClassAxis
= amh_SeriesEConvertibleUnitsMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= amh_SponsorMember
4,375,000amh_NoncontrollingInterestUnitsOwnedInOperatingPartnership
/ us-gaap_CapitalUnitsByClassAxis
= amh_SeriesEConvertibleUnitsMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= amh_SponsorMember
  4,375,000amh_NoncontrollingInterestUnitsOwnedInOperatingPartnership
/ us-gaap_CapitalUnitsByClassAxis
= amh_SeriesEConvertibleUnitsMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= amh_SponsorMember
         
Class A Units                    
Estimated fair values of the net assets                    
Issuance of units (in shares)             32,667amh_PartnersCapitalAccountUnitsIssuedDuringPeriodAcquisitions
/ us-gaap_CapitalUnitsByClassAxis
= amh_ClassAUnitsMember
     
Class A Units | Sponsor                    
Estimated fair values of the net assets                    
Issuance of units (in shares)               653,378amh_PartnersCapitalAccountUnitsIssuedDuringPeriodAcquisitions
/ us-gaap_CapitalUnitsByClassAxis
= amh_ClassAUnitsMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= amh_SponsorMember
   
Units owned (in shares) 14,440,670amh_NoncontrollingInterestUnitsOwnedInOperatingPartnership
/ us-gaap_CapitalUnitsByClassAxis
= amh_ClassAUnitsMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= amh_SponsorMember
13,787,292amh_NoncontrollingInterestUnitsOwnedInOperatingPartnership
/ us-gaap_CapitalUnitsByClassAxis
= amh_ClassAUnitsMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= amh_SponsorMember
14,440,670amh_NoncontrollingInterestUnitsOwnedInOperatingPartnership
/ us-gaap_CapitalUnitsByClassAxis
= amh_ClassAUnitsMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= amh_SponsorMember
  14,440,670amh_NoncontrollingInterestUnitsOwnedInOperatingPartnership
/ us-gaap_CapitalUnitsByClassAxis
= amh_ClassAUnitsMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= amh_SponsorMember
         
Class A common shares | Sponsor                    
Estimated fair values of the net assets                    
Units issue to Sponsor, value                 11,300,000us-gaap_NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= amh_SponsorMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember
 
Issuance of common shares                 705,167us-gaap_StockIssuedDuringPeriodSharesAcquisitions
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= amh_SponsorMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember
 
Class A common shares | Alaska Joint Venture Acquisition                    
Estimated fair values of the net assets                    
Issuance of common shares                   43,609,394us-gaap_StockIssuedDuringPeriodSharesAcquisitions
/ us-gaap_BusinessAcquisitionAxis
= amh_AlaskaJointVentureAcquisitionMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember
Class A common shares | Beazer Rental Homes                    
Acquisitions And Dispositions                    
Consideration paid in common shares       8,158,001us-gaap_BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable
/ us-gaap_BusinessAcquisitionAxis
= amh_BeazerPreOwnedRentalHomesIncMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember
           
Estimated fair values of the net assets                    
Units issue to Sponsor, value 144,800,000us-gaap_NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance
/ us-gaap_BusinessAcquisitionAxis
= amh_BeazerPreOwnedRentalHomesIncMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember
                 
Operating Partnership | Series D Convertible Units                    
Estimated fair values of the net assets                    
Issuance of units (in shares)           4,375,000amh_PartnersCapitalAccountUnitsIssuedDuringPeriodAcquisitions
/ us-gaap_CapitalUnitsByClassAxis
= amh_SeriesDConvertibleUnitsMember
/ dei_LegalEntityAxis
= amh_OperatingPartnershipLegalEntityMember
       
Operating Partnership | Series D Convertible Units | Sponsor                    
Estimated fair values of the net assets                    
Units owned (in shares) 4,375,000amh_NoncontrollingInterestUnitsOwnedInOperatingPartnership
/ us-gaap_CapitalUnitsByClassAxis
= amh_SeriesDConvertibleUnitsMember
/ dei_LegalEntityAxis
= amh_OperatingPartnershipLegalEntityMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= amh_SponsorMember
4,375,000amh_NoncontrollingInterestUnitsOwnedInOperatingPartnership
/ us-gaap_CapitalUnitsByClassAxis
= amh_SeriesDConvertibleUnitsMember
/ dei_LegalEntityAxis
= amh_OperatingPartnershipLegalEntityMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= amh_SponsorMember
4,375,000amh_NoncontrollingInterestUnitsOwnedInOperatingPartnership
/ us-gaap_CapitalUnitsByClassAxis
= amh_SeriesDConvertibleUnitsMember
/ dei_LegalEntityAxis
= amh_OperatingPartnershipLegalEntityMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= amh_SponsorMember
  4,375,000amh_NoncontrollingInterestUnitsOwnedInOperatingPartnership
/ us-gaap_CapitalUnitsByClassAxis
= amh_SeriesDConvertibleUnitsMember
/ dei_LegalEntityAxis
= amh_OperatingPartnershipLegalEntityMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= amh_SponsorMember
         
Operating Partnership | Series D Convertible Units | Management Internalization | Sponsor                    
Estimated fair values of the net assets                    
Value of units issued           65,200,000amh_PartnersCapitalAccountUnitsIssuedDuringPeriodValueAcquisitions
/ us-gaap_BusinessAcquisitionAxis
= amh_AmericanHomes4RentAdvisorLlcAndAmericanHomes4RentManagementHoldingsLlcAcquisitionMember
/ us-gaap_CapitalUnitsByClassAxis
= amh_SeriesDConvertibleUnitsMember
/ dei_LegalEntityAxis
= amh_OperatingPartnershipLegalEntityMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= amh_SponsorMember
       
Operating Partnership | Series E Convertible Units                    
Estimated fair values of the net assets                    
Units owned (in shares) 4,375,000amh_NoncontrollingInterestUnitsOwnedInOperatingPartnership
/ us-gaap_CapitalUnitsByClassAxis
= amh_SeriesEConvertibleUnitsMember
/ dei_LegalEntityAxis
= amh_OperatingPartnershipLegalEntityMember
  4,375,000amh_NoncontrollingInterestUnitsOwnedInOperatingPartnership
/ us-gaap_CapitalUnitsByClassAxis
= amh_SeriesEConvertibleUnitsMember
/ dei_LegalEntityAxis
= amh_OperatingPartnershipLegalEntityMember
  4,375,000amh_NoncontrollingInterestUnitsOwnedInOperatingPartnership
/ us-gaap_CapitalUnitsByClassAxis
= amh_SeriesEConvertibleUnitsMember
/ dei_LegalEntityAxis
= amh_OperatingPartnershipLegalEntityMember
         
Operating Partnership | Series E Convertible Units | Sponsor                    
Estimated fair values of the net assets                    
Units owned (in shares) 4,375,000amh_NoncontrollingInterestUnitsOwnedInOperatingPartnership
/ us-gaap_CapitalUnitsByClassAxis
= amh_SeriesEConvertibleUnitsMember
/ dei_LegalEntityAxis
= amh_OperatingPartnershipLegalEntityMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= amh_SponsorMember
  4,375,000amh_NoncontrollingInterestUnitsOwnedInOperatingPartnership
/ us-gaap_CapitalUnitsByClassAxis
= amh_SeriesEConvertibleUnitsMember
/ dei_LegalEntityAxis
= amh_OperatingPartnershipLegalEntityMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= amh_SponsorMember
  4,375,000amh_NoncontrollingInterestUnitsOwnedInOperatingPartnership
/ us-gaap_CapitalUnitsByClassAxis
= amh_SeriesEConvertibleUnitsMember
/ dei_LegalEntityAxis
= amh_OperatingPartnershipLegalEntityMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= amh_SponsorMember
         
Operating Partnership | Series E Convertible Units | Management Internalization | Sponsor                    
Estimated fair values of the net assets                    
Value of units issued           64,900,000amh_PartnersCapitalAccountUnitsIssuedDuringPeriodValueAcquisitions
/ us-gaap_BusinessAcquisitionAxis
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/ us-gaap_CapitalUnitsByClassAxis
= amh_SeriesEConvertibleUnitsMember
/ dei_LegalEntityAxis
= amh_OperatingPartnershipLegalEntityMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= amh_SponsorMember
       
Operating Partnership | Class A Units | Sponsor                    
Estimated fair values of the net assets                    
Issuance of units (in shares)                   12,395,965amh_PartnersCapitalAccountUnitsIssuedDuringPeriodAcquisitions
/ us-gaap_CapitalUnitsByClassAxis
= amh_ClassAUnitsMember
/ dei_LegalEntityAxis
= amh_OperatingPartnershipLegalEntityMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= amh_SponsorMember
Units owned (in shares) 14,440,670amh_NoncontrollingInterestUnitsOwnedInOperatingPartnership
/ us-gaap_CapitalUnitsByClassAxis
= amh_ClassAUnitsMember
/ dei_LegalEntityAxis
= amh_OperatingPartnershipLegalEntityMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= amh_SponsorMember
13,787,292amh_NoncontrollingInterestUnitsOwnedInOperatingPartnership
/ us-gaap_CapitalUnitsByClassAxis
= amh_ClassAUnitsMember
/ dei_LegalEntityAxis
= amh_OperatingPartnershipLegalEntityMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= amh_SponsorMember
14,440,670amh_NoncontrollingInterestUnitsOwnedInOperatingPartnership
/ us-gaap_CapitalUnitsByClassAxis
= amh_ClassAUnitsMember
/ dei_LegalEntityAxis
= amh_OperatingPartnershipLegalEntityMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= amh_SponsorMember
  14,440,670amh_NoncontrollingInterestUnitsOwnedInOperatingPartnership
/ us-gaap_CapitalUnitsByClassAxis
= amh_ClassAUnitsMember
/ dei_LegalEntityAxis
= amh_OperatingPartnershipLegalEntityMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= amh_SponsorMember
         
Operating Partnership | Class A Units | Alaska Joint Venture Acquisition                    
Estimated fair values of the net assets                    
Issuance of units (in shares)                   12,395,965amh_PartnersCapitalAccountUnitsIssuedDuringPeriodAcquisitions
/ us-gaap_BusinessAcquisitionAxis
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/ us-gaap_CapitalUnitsByClassAxis
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/ dei_LegalEntityAxis
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