XML 19 R57.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Noncash transactions (Details) | 0 Months Ended
--- | ---
Feb. 28, 2013
Sponsor | Class B Common Shares |
Nonmonetary Transaction |
Common shares issue to Sponsor | 634,408
Sponsor | Operating Partnership |
Nonmonetary Transaction |
Number of properties contributed to the Operating Partnership | 2,770
Operating Partnership | Sponsor | Series C Convertible Units |
Nonmonetary Transaction |
Units issue to Sponsor (in shares) | 31,085,974

X
- Definition The number of properties contributed to the Operating Partnership. + References No definition available. + Details
Name: | amh_ContributionOfPropertyNumberOfProperties
Namespace Prefix: | amh_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of units issued during the period pursuant to acquisitions. + References No definition available. + Details
Name: | amh_PartnersCapitalAccountUnitsIssuedDuringPeriodAcquisitions
Namespace Prefix: | amh_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

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

X
- Definition Number of shares of stock issued during the period pursuant to acquisitions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 2: 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 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.28,29) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30 -Article 5 + Details
Name: | us-gaap_StockIssuedDuringPeriodSharesAcquisitions
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration