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Real Estate Acquisitions and Dispositions Real Estate Acquisitions and Dispositions (Tables) | 12 Months Ended
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Dec. 31, 2016
Real Estate Acquisitions and Dispositions [Abstract] |
Schedule of Business Acquisitions, by Acquisition [Table Text Block] | The following chart shows our acquisition activity, excluding properties acquired through the Merger, for the year ended December 31, 2016:
Community |  | Market |  | Units/Acres |  | Date Acquired
The Apartments at Cobblestone Square |  | Fredericksburg, Virginia |  | 314 |  | March 1, 2016
Residences at Fountainhead |  | Phoenix, Arizona |  | 322 |  | June 30, 2016
Yale at 6th |  | Houston, Texas |  | 352 |  | September 8, 2016
Innovation Apartment Homes |  | Greenville, South Carolina |  | 336 |  | September 22, 2016
1201 Midtown |  | Charleston, South Carolina |  | 302 |  | December 15, 2016
Disposal Groups, Including Discontinued Operations [Table Text Block] | The following chart shows our disposition activity for the year ended December 31, 2016:
Community |  | Market |  | Units/Sq. Ft./Acres |  | Date Sold
McKinney (1) |  | Dallas, Texas |  | 30 acres |  | February 5, 2016
Colonial Promenade Nord du Lac |  | Covington, Louisiana |  | 295,447 sq. ft. |  | March 28, 2016
Colonial Promenade Nord du Lac - Outparcels |  | Covington, Louisiana |  | 25 acres |  | March 28, 2016
Colonial Grand at Heathrow - Adjacent Land Parcels |  | Orlando, Florida |  | 11 acres |  | April 7, 2016
Land Title Building (2) |  | Birmingham, Alabama |  | 29,971 sq. ft. |  | May 23, 2016
Colonial Promenade Huntsville - Outparcel |  | Huntsville, Alabama |  | 1 acre |  | June 29, 2016
CG at Autumn Park |  | Greensboro, North Carolina |  | 402 |  | August 18, 2016
Corners at Crystal Lake |  | Winston-Salem, North Carolina |  | 240 |  | August 18, 2016
CV at Glen Eagles |  | Winston-Salem, North Carolina |  | 310 |  | August 18, 2016
CV at Mill Creek |  | Winston-Salem, North Carolina |  | 220 |  | August 18, 2016
Abbington Place |  | Huntsville, Alabama |  | 152 |  | September 13, 2016
CV at Stone Point |  | Charlotte, North Carolina |  | 192 |  | September 13, 2016
CV at Greystone |  | Charlotte, North Carolina |  | 408 |  | September 13, 2016
CV at Woodlake |  | Raleigh/Durham, North Carolina |  | 266 |  | November 17, 2016
CV at Tradewinds |  | Norfolk/Hampton/Virginia Beach, Virginia |  | 284 |  | November 17, 2016
CV Harbour Club |  | Norfolk/Hampton/Virginia Beach, Virginia |  | 213 |  | November 17, 2016
CV Main Park |  | Dallas, Texas |  | 192 |  | November 17, 2016
Lane at Towne Crossing |  | Dallas, Texas |  | 384 |  | November 17, 2016

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- Definition Tabular disclosure of a material business combination completed during the period, including background, timing, and recognized assets and liabilities. This table does not include leveraged buyouts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=65885119&loc=d3e1486-128463 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=65885119&loc=d3e1392-128463 + Details
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- Definition Tabular disclosure of information related to a disposal group. Includes, but is not limited to, a discontinued operation, disposal classified as held-for-sale or disposed of by means other than sale or disposal of an individually significant component. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=65878427&loc=SL51721533-107759 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 4B -URI http://asc.fasb.org/extlink&oid=64827811&loc=SL51721665-107760 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=64827811&loc=d3e1474-107760 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=64827811&loc=d3e1361-107760 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=64827811&loc=SL51721683-107760 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 3A -URI http://asc.fasb.org/extlink&oid=64862545&loc=SL51724579-110230 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 5C -URI http://asc.fasb.org/extlink&oid=64827811&loc=SL51721675-107760 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 4A -URI http://asc.fasb.org/extlink&oid=64827811&loc=SL51721663-107760 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=64862545&loc=d3e2941-110230 Reference 10: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 5B -URI http://asc.fasb.org/extlink&oid=64827811&loc=SL51721673-107760 Reference 11: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 3A -URI http://asc.fasb.org/extlink&oid=64827811&loc=SL51721659-107760 Reference 12: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 5A -URI http://asc.fasb.org/extlink&oid=64827811&loc=SL51721671-107760 Reference 13: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 5D -URI http://asc.fasb.org/extlink&oid=64827811&loc=SL51721677-107760 + Details
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