XML 46 R36.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Single-family properties (Details 2) (Single-Family Properties, USD $) In Millions, unless otherwise specified | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2014 | Sep. 30, 2013 | Sep. 30, 2014 | Sep. 30, 2013 | Dec. 31, 2013
Single-Family Properties |  |  |  |  |
Property Subject to or Available for Operating Lease |  |  |  |  |
Net book value | $ 138.8 |  | $ 138.8 |  | $ 120.6
Depreciation expense | $ 40.8 | $ 20.8 | $ 106.6 | $ 32.7 |

X
- Definition The value of real estate properties for which the recorded grant deed has not been received. + References No definition available. + Details
Name: | amh_RealEstateInvestmentPropertyUnrecordedDeed
Namespace Prefix: | amh_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 + Details
Name: | us-gaap_Depreciation
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_PropertySubjectToOrAvailableForOperatingLeaseLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration