XML 103 R87.htm IDEA: XBRL DOCUMENT
v3.6.0.2

Subsequent Events (Details) |  | 1 Months Ended | 2 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | ---
Feb. 23, 2017 $ / shares | Jul. 31, 2016 | Jun. 30, 2016 | May 31, 2016 | Aug. 31, 2014 USD ($) $ / shares | Oct. 31, 2013 | Feb. 22, 2017 USD ($) property $ / shares | Jan. 31, 2014 | Dec. 31, 2016 USD ($) property $ / shares | Dec. 31, 2015 USD ($) $ / shares | Dec. 31, 2014 USD ($) $ / shares | Nov. 30, 2016 USD ($) | Feb. 29, 2016 $ / shares
Subsequent Event |  |  |  |  |  |  |  |  |  |  |  |  |
Revolving credit facility outstanding balance |  |  |  |  |  |  |  |  | $ 0 | $ 0 |  |  |
Proceeds from revolving credit facilities |  |  |  |  |  |  |  |  | $ 951,000,000 | 827,000,000 | $ 1,828,000,000 |  |
Number of properties sold | property |  |  |  |  |  |  |  |  | 712 |  |  |  |
Proceeds from disposition of properties, net |  |  |  |  |  |  |  |  | $ 88,590,000 | 0 | 0 |  |
Proceeds from issuance of Class A common shares |  |  |  |  |  |  |  |  | $ 102,830,000 | $ 0 | $ 308,435,000 |  |
Dividends declared on common shares (in dollars per share) | $ / shares |  |  |  |  |  |  |  |  | $ 0.2 | $ 0.2 | $ 0.2 |  |
Class A common shares |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event |  |  |  |  |  |  |  |  |  |  |  |  |
Common shares |  |  |  |  |  |  |  |  | $ 2,427,000 | $ 2,072,000 |  |  |
Proceeds from issuance of Class A common shares |  |  |  |  | $ 313,300,000 |  |  |  |  |  |  |  |
Common shares, par value (in dollars per share) | $ / shares |  |  |  |  | $ 0.01 |  |  |  | $ 0.01 | $ 0.01 |  |  | $ 0.01
Offering costs |  |  |  |  | $ 4,900,000 |  |  |  | $ 227,000 | $ 0 | $ 0 |  |
Class B common shares |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event |  |  |  |  |  |  |  |  |  |  |  |  |
Common shares |  |  |  |  |  |  |  |  | $ 6,000 | $ 6,000 |  |  |
Common shares, par value (in dollars per share) | $ / shares |  |  |  |  |  |  |  |  | $ 0.01 | $ 0.01 |  |  |
Series A Participating Preferred Stock |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred Shares dividend rate |  |  |  |  |  | 5.00% |  |  | 5.00% | 5.00% | 5.00% |  |
Series B Participating Preferred Stock |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred Shares dividend rate |  |  |  |  |  |  |  | 5.00% | 5.00% | 5.00% | 5.00% |  |
Series D Perpetual Preferred Stock |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred Shares dividend rate |  |  |  | 6.50% |  |  |  |  | 6.50% |  |  |  |
Series E Perpetual Preferred Stock |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred Shares dividend rate |  | 6.35% | 6.35% |  |  |  |  |  | 6.35% |  |  |  |
Subsequent Events |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event |  |  |  |  |  |  |  |  |  |  |  |  |
Number of properties sold | property |  |  |  |  |  |  | 60 |  |  |  |  |  |
Proceeds from disposition of properties, net |  |  |  |  |  |  | $ 6,300,000 |  |  |  |  |  |
Number of properties acquired | property |  |  |  |  |  |  | 200 |  |  |  |  |  |
Aggregate purchase price of properties acquired |  |  |  |  |  |  | $ 32,700,000 |  |  |  |  |  |
Subsequent Events | Class A common shares |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event |  |  |  |  |  |  |  |  |  |  |  |  |
Common shares |  |  |  |  |  |  | $ 200,000 |  |  |  |  |  |
Common shares, par value (in dollars per share) | $ / shares |  |  |  |  |  |  | $ 21.27 |  |  |  |  |  |
Proceeds from sale of stock, net of issuance costs |  |  |  |  |  |  | $ 5,200,000 |  |  |  |  |  |
Offering costs |  |  |  |  |  |  | 100,000 |  |  |  |  |  |
Shares reserved for future issuance |  |  |  |  |  |  | 290,700,000 |  |  |  |  |  |
Dividends declared on common shares (in dollars per share) | $ / shares | $ 0.05 |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Events | Class B common shares |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event |  |  |  |  |  |  |  |  |  |  |  |  |
Dividends declared on common shares (in dollars per share) | $ / shares | 0.05 |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Events | Series A Participating Preferred Stock |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event |  |  |  |  |  |  |  |  |  |  |  |  |
Dividends declared on common shares (in dollars per share) | $ / shares | $ 0.3125 |  |  |  |  |  |  |  |  |  |  |  |
Preferred Shares dividend rate | 5.00% |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Events | Series B Participating Preferred Stock |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event |  |  |  |  |  |  |  |  |  |  |  |  |
Dividends declared on common shares (in dollars per share) | $ / shares | $ 0.3125 |  |  |  |  |  |  |  |  |  |  |  |
Preferred Shares dividend rate | 5.00% |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Events | 5.50% Series C participating preferred shares |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event |  |  |  |  |  |  |  |  |  |  |  |  |
Dividends declared on common shares (in dollars per share) | $ / shares | $ 0.34375 |  |  |  |  |  |  |  |  |  |  |  |
Preferred Shares dividend rate | 5.50% |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Events | Series D Perpetual Preferred Stock |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event |  |  |  |  |  |  |  |  |  |  |  |  |
Dividends declared on common shares (in dollars per share) | $ / shares | $ 0.40625 |  |  |  |  |  |  |  |  |  |  |  |
Preferred Shares dividend rate | 6.50% |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Events | Series E Perpetual Preferred Stock |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event |  |  |  |  |  |  |  |  |  |  |  |  |
Dividends declared on common shares (in dollars per share) | $ / shares | $ 0.39688 |  |  |  |  |  |  |  |  |  |  |  |
Preferred Shares dividend rate | 6.35% |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit | Credit facility |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event |  |  |  |  |  |  |  |  |  |  |  |  |
Revolving credit facility outstanding balance |  |  |  |  |  |  |  |  | $ 0 | $ 0 |  |  |
Line of Credit | Credit facility | Subsequent Events |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event |  |  |  |  |  |  |  |  |  |  |  |  |
Revolving credit facility outstanding balance |  |  |  |  |  |  | 0 |  |  |  |  |  |
Term Loan Facility |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event |  |  |  |  |  |  |  |  |  |  |  |  |
Term loan facility |  |  |  |  |  |  |  |  | 321,735,000 | 0 |  |  |
Term Loan Facility | Secured Debt |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event |  |  |  |  |  |  |  |  |  |  |  |  |
Term loan facility |  |  |  |  |  |  |  |  | 325,000,000 | $ 0 |  |  |
Term Loan Facility | Secured Debt | Subsequent Events |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event |  |  |  |  |  |  |  |  |  |  |  |  |
Additional proceeds drawn from term loan |  |  |  |  |  |  | 25,000,000 |  |  |  |  |  |
Term loan facility |  |  |  |  |  |  | 350,000,000 |  |  |  |  |  |
At the Market - Common Share Offering Program | Class A common shares |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from issuance of Class A common shares |  |  |  |  |  |  |  |  | 104,000,000 |  |  |  |
Proceeds from sale of stock, net of issuance costs |  |  |  |  |  |  |  |  | 102,800,000 |  |  |  |
Offering costs |  |  |  |  |  |  |  |  | 1,200,000 |  |  |  |
Shares reserved for future issuance |  |  |  |  |  |  |  |  |  |  |  | $ 400,000,000.0 |
Remaining available for future shares |  |  |  |  |  |  |  |  | $ 296,000,000 |  |  |  |
At the Market - Common Share Offering Program | Subsequent Events | Class A common shares |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from issuance of Class A common shares |  |  |  |  |  |  | $ 5,300,000 |  |  |  |  |  |

X
- Definition Aggregate Purchase Price Of Properties Acquired + References No definition available. + Details
Name: | amh_AggregatePurchasePriceOfPropertiesAcquired
Namespace Prefix: | amh_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Common Stock, Capital Shares Reserved For Future Issuance, Amount + References No definition available. + Details
Name: | amh_CommonStockCapitalSharesReservedForFutureIssuanceAmount
Namespace Prefix: | amh_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Common Stock, Capital Shares Reserved For Future Issuance, Remaining Amount + References No definition available. + Details
Name: | amh_CommonStockCapitalSharesReservedForFutureIssuanceRemainingAmount
Namespace Prefix: | amh_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Number Of Properties Acquired + References No definition available. + Details
Name: | amh_NumberOfPropertiesAcquired
Namespace Prefix: | amh_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number Of Real Estate Properties Sold + References No definition available. + Details
Name: | amh_NumberOfRealEstatePropertiesSold
Namespace Prefix: | amh_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Proceeds from sale of stock, net of issuance costs + References No definition available. + Details
Name: | amh_ProceedsFromIssuanceOfCommonStockNet
Namespace Prefix: | amh_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Aggregate dividends declared during the period for each share of common stock outstanding. + 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 + Details
Name: | us-gaap_CommonStockDividendsPerShareDeclared
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Face amount or stated value per share of common stock. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_CommonStockParOrStatedValuePerShare
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Aggregate par or stated value of issued nonredeemable common stock (or common stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable common shares, par value and other disclosure concepts are in another section within stockholders' equity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_CommonStockValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
Name: | us-gaap_LineOfCredit
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The cash outflow for cost incurred directly with the issuance of an equity security. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3291-108585 + Details
Name: | us-gaap_PaymentsOfStockIssuanceCosts
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The percentage rate used to calculate dividend payments on preferred stock. + References No definition available. + Details
Name: | us-gaap_PreferredStockDividendRatePercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The cash inflow from the additional capital contribution to the entity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3255-108585 + Details
Name: | us-gaap_ProceedsFromIssuanceOfCommonStock
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3255-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 + Details
Name: | us-gaap_ProceedsFromIssuanceOfLongTermDebt
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3255-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(f)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
Name: | us-gaap_ProceedsFromLinesOfCredit
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Cash received for the sale of real estate that is not part of an investing activity during the current period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3179-108585 + Details
Name: | us-gaap_ProceedsFromSaleOfRealEstate
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Carrying value as of the balance sheet date, including the current and noncurrent portions, of collateralized debt obligations (with maturities initially due after one year or beyond the operating cycle, if longer). Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(16)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
Name: | us-gaap_SecuredDebt
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event. + References No definition available. + Details
Name: | us-gaap_SubsequentEventLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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

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

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

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

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

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

X
- Details
Name: | us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=amh_SeriesCParticipatingPreferredStock5.5PercentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=us-gaap_LineOfCreditMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CreditFacilityAxis=us-gaap_RevolvingCreditFacilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=amh_DelayedDrawTermLoanFacilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=us-gaap_SecuredDebtMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsidiarySaleOfStockAxis=amh_AttheMarketCommonShareOfferingProgramMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |