Represents the number of extension options for debt instrument.

No definition available.

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Namespace Prefix:	amh_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the period of extension options for debt instrument.

+ References

No definition available.

+ Details

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Namespace Prefix:	amh_
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Balance Type:	na
Period Type:	duration

- Definition

Represents the number of floating rate components of loan.

+ References

No definition available.

+ Details

Name:	amh_NumberOfFloatingRateLoanComponents
Namespace Prefix:	amh_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
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+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

The amount of debt discount that was originally recognized at the issuance of the instrument that has yet to be amortized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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Balance Type:	debit
Period Type:	instant

- Definition

Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Cap rate on an interest rate derivative such as an interest rate cap or collar. If market rates exceed the cap rate, a payment or receipt is triggered on the contract.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
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-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 20, 22
-Article 5

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The number of real estate properties owned as of the balance sheet date.

+ References

No definition available.

+ Details

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Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Amount of real estate investment property, net of accumulated depreciation, which may include the following: (1) land available-for-sale; (2) land available-for-development; (3) investments in building and building improvements; (4) tenant allowances; (5) developments in-process; (6) rental properties; and (7) other real estate investments.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Details

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- Details

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- Details

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- Details

Name:	us-gaap_VariableRateAxis=us-gaap_LondonInterbankOfferedRateLIBORMember
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Debt - Asset-Backed Securitization Narrative (Details)	Feb. 29, 2016 USD ($) extension_option floating_rate_component property	Jun. 30, 2016 USD ($) single_family_property property	Dec. 31, 2015 USD ($) single_family_property
Debt Instrument [Line Items]
Number of properties \| single_family_property		48,038	38,780
Debt outstanding		$ 3,094,506,000	$ 2,524,395,000
Net book value		7,521,659,000	6,289,938,000
Fair value of interest rate cap agreement		$ 0	0
Asset-backed securitization \| ARP 2014-SFR1
Debt Instrument [Line Items]
Debt instrument initial term	2 years
Number of extension options \| extension_option	3
Period of extension options	12 months
Borrower \| Asset-backed securitization \| ARP 2014-SFR1
Debt Instrument [Line Items]
Number of properties \| property	2,875	2,875
Principal amount	$ 342,200,000
Debt instrument initial term	2 years
Number of extension options \| extension_option	3
Period of extension options	12 months
Number of floating rate components \| floating_rate_component	6
Debt outstanding		$ 342,115,000	0
Unamortized discount		(11,293,000)	$ 0
Net book value		454,700,000
Weighted blended interest rate \| Asset-backed securitization \| ARP 2014-SFR1 \| LIBOR
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate	2.11%
Weighted blended interest rate \| Borrower \| Asset-backed securitization \| ARP 2014-SFR1 \| LIBOR
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate	2.11%
Interest Rate Cap \| Borrower \| Asset-backed securitization \| ARP 2014-SFR1
Debt Instrument [Line Items]
Interest rate cap	3.12%
Fair value of interest rate cap agreement		$ 0