XML 38 R61.htm IDEA: XBRL DOCUMENT v2.4.0.8

Acquisitions and Dispositions - Additional Information 1 (Detail) (USD $)	0 Months Ended	1 Months Ended	12 Months Ended		0 Months Ended		0 Months Ended	12 Months Ended		0 Months Ended		0 Months Ended
	Jun. 27, 2013 Property	Dec. 31, 2012 Property	Dec. 31, 2013 Property	Jun. 14, 2013	Jun. 14, 2013 Class A Common Shares [Member]	Dec. 31, 2013 Class A Units [Member]	Jun. 14, 2013 RJ LLC [Member] Property	Dec. 31, 2013 RJ LLC [Member]	Dec. 31, 2012 RJ LLC [Member] Class B Common Shares [Member]	Jun. 14, 2013 RJ LLC [Member] Class A Common Shares [Member]	Dec. 31, 2013 RJ LLC [Member] Class A Units [Member]	Jun. 14, 2013 RJ American Homes 4 Rent One, LLC [Member]	Sep. 20, 2012 RJ American Homes 4 Rent One, LLC [Member] Property	Sep. 20, 2012 RJ American Homes 4 Rent One, LLC [Member] Class B Common Shares [Member]	Sep. 20, 2012 RJ American Homes 4 Rent One, LLC [Member] Class A Common Shares [Member]	Mar. 15, 2013 RJ American Homes 4 Rent Two, LLC [Member] Property	Mar. 15, 2013 RJ American Homes 4 Rent Two, LLC [Member] Class B Common Shares [Member]	Mar. 15, 2013 RJ American Homes 4 Rent Two, LLC [Member] Class A Common Shares [Member]
Acquisitions And Dispositions [Line Items]
Initial capital contribution of single-family properties		3,644	23,268				377						177			214
Acquisition percentage							100.00%						100.00%	33.00%	67.00%	100.00%	33.00%	67.00%
Preferred units issued				653,492					653,492
Percentage of promoted interest distributions made from RJ1 to RJ LLC		20.00%
Preferred units outstanding							653,492
Preferred Units converted into Class A units					653,492					653,492
Additional unit issued					705,167					705,167
Fair value of Preferred Units redeemed										$ 11,283,000	$ 10,456,000
Basis for conversion										One-for-one
Operating Partnership loan												7,600,000
Gain on remeasurement of equity method investment			1,810,000				10,900,000
Redemption of Preferred Units								653,492
Carrying value of Preferred Units redeemed						0
Conversion of common shares description			The fair value of the Class A units issued in connection with the 2013 RJ Transaction has been estimated using the most recent trading price in the Company's Class A common shares, into which the Class A units are convertible into on a one-for-one basis.
Number of properties sold	38
Gross sales price of properties sold	8,900,000
Gain on disposition of assets	$ 904,000		$ 904,000

X

- Details

Name:	amh_AcquisitionsAndDispositionsLineItems
Namespace Prefix:	amh_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Additional Preferred Units Issued

+ References

No definition available.

+ Details

Name:	amh_AdditionalPreferredUnitsIssued
Namespace Prefix:	amh_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Carrying Value Of Preferred Units

+ References

No definition available.

+ Details

Name:	amh_CarryingValueOfPreferredUnits
Namespace Prefix:	amh_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Conversion Of Preferred Units

+ References

No definition available.

+ Details

Name:	amh_ConversionOfPreferredUnits
Namespace Prefix:	amh_
Data Type:	xbrli:sharesItemType
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:	instant

X

- Definition

Percentage Of Promotional Interest Of All Distributable Cash Available For Distribution

+ References

No definition available.

+ Details

Name:	amh_PercentageOfPromotionalInterestOfAllDistributableCashAvailableForDistribution
Namespace Prefix:	amh_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Preferred Stock Fair Value

+ References

No definition available.

+ Details

Name:	amh_PreferredStockFairValue
Namespace Prefix:	amh_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Proceeds From Sales Of Discontinued Operations

+ References

No definition available.

+ Details

Name:	amh_ProceedsFromSalesOfDiscontinuedOperations
Namespace Prefix:	amh_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Redemption Of Preferred Units

+ References

No definition available.

+ Details

Name:	amh_RedemptionOfPreferredUnits
Namespace Prefix:	amh_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Percentage of voting equity interests acquired at the acquisition date in the business combination.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=25497992&loc=d3e1392-128463

+ Details

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

X

- Definition

In a business combination achieved in stages, this element represents the amount of gain recognized by the entity as a result of remeasuring to fair value the equity interest in the acquiree it held before the business combination.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (g)(2)

-URI http://asc.fasb.org/extlink&oid=25497992&loc=d3e1392-128463

+ Details

Name:	us-gaap_BusinessCombinationStepAcquisitionEquityInterestInAcquireeRemeasurementGain
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Describe the conversion features of common stock if such stock is convertible. That is, shares of common stock into which another convertible security was converted, or shares of common stock into which another class of common stock was converted.

+ 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



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 30

-Article 5



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section 50

-Paragraph 6

-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21506-112644

+ Details

Name:	us-gaap_CommonStockConversionBasis
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

A unique description of a noncash or part noncash stock conversion. The description would be expected to include sufficient information to provide an understanding of the nature and purpose of the conversion. Noncash is defined as transactions during a period that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 50

-Paragraph 5

-URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4332-108586



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 50

-Paragraph 4

-URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4313-108586



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 50

-Paragraph 3

-URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4304-108586

+ Details

Name:	us-gaap_ConversionOfStockDescription
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Gross amount of debt extinguished.

+ References

No definition available.

+ Details

Name:	us-gaap_ExtinguishmentOfDebtAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Amount of gain (loss) on sale or disposal of assets, including but not limited to property plant and equipment, intangible assets and equity in securities of subsidiaries or equity method investee.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 360

-SubTopic 10

-Section 45

-Paragraph 5

-URI http://asc.fasb.org/extlink&oid=8077374&loc=d3e2443-110228

+ Details

Name:	us-gaap_GainLossOnDispositionOfAssets1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

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

+ References

No definition available.

+ Details

Name:	us-gaap_NumberOfRealEstateProperties
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

X

- Definition

The number of preferred 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_PreferredUnitsIssued
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

X

- Definition

The number of preferred 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_PreferredUnitsOutstanding
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant