XML 47 R30.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Real Estate Acquisitions and Dispositions Real Estate Acquisitions and Dispositions (Tables) | 9 Months Ended
--- | ---
Sep. 30, 2018
Real Estate [Line Items] |
Schedule of Real Estate Asset Acquisitions and Dispositions [Table Text Block] | The following table reflects the Company's acquisition activity for the nine months ended September 30, 2018:
Multifamily Acquisition |  | Market |  | Units |  | Date Acquired
Sync 36 |  | Denver, CO |  | 374 units |  | April 26, 2018
Commercial Acquisition |  | Market |  | Sq Ft |  | Date Acquired
Hue Retail |  | Raleigh, NC |  | 7,500 sq ft |  | August 1, 2018
The following table reflects the Company's disposition activity for the nine months ended September 30, 2018:
Land Dispositions |  | Market |  | Acres |  | Date Sold
Craft Farms Residential - Outparcel |  | Gulf Shores, AL |  | 3 |  | January 24, 2018
Randal Park - Outparcel |  | Orlando, FL |  | 34 |  | February 27, 2018
Colonial Grand at Azure - Outparcel |  | Las Vegas, NV |  | 29 |  | April 19, 2018
Spring Hill - Outparcel |  | Atlanta, GA |  | 7 |  | July 2, 2018

X
- Definition Schedule of Real Estate Asset Acquisitions and Dispositions [Table Text Block] + References No definition available. + Details
Name: | maa_ScheduleofRealEstateAssetAcquisitionsandDispositionsTableTextBlock
Namespace Prefix: | maa_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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