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Earnings Per Common Share of MAA (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands | 12 Months Ended
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Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Earnings Per Share Disclosure |  |  |  |
Dividends, Preferred Stock, Cash |  |  | $ 0 | $ 0
Parent Company [Member] |  |  |  |
Earnings Per Share Disclosure |  |  |  |
Weighted average common shares, basic |  | 78,502 | 75,176 | 74,982
Weighted Average General Partnership Units Outstanding |  | 0 | 0 | 0
Weighted Average Number Diluted Shares Outstanding Adjustment |  | 298 | 0 | 0
Weighted average common shares - diluted |  | 78,800 | 75,176 | 74,982
Dividends, Preferred Stock, Cash |  | $ 924 |  |
Calculation of Basic Earnings per Share [Member] | Parent Company [Member] |  |  |  |
Earnings Per Share Disclosure |  |  |  |
Income from Continuing Operations, Including Portion Attributable to Noncontrolling Interest |  | 224,402 | $ 350,745 | $ 150,946
Income from Continuing Operations Attributable to Noncontrolling Interest |  | (12,180) | (18,458) | (8,013)
Income from continuing operations allocated to unvested restricted shares |  | (572) | (772) | (278)
Dividends, Preferred Stock, Cash |  | (307) | 0 | 0
Income from continuing operations available for common shareholders, adjusted |  | 211,343 | 331,515 | 142,655
Income from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest |  | 0 | 0 | 5,331
Income from Discontinued Operations, Net of Tax, Attributable to Noncontrolling Interest |  | 0 | 0 | (284)
Income from discontinued operations allocated to unvested restricted shares |  | 0 | 0 | (10)
Income from discontinued operations available for common shareholders, adjusted |  | $ 0 | $ 0 | $ 5,037
Basic Earnings Per Share |  | $ 2.69 | $ 4.41 | $ 1.97
Calculation of Diluted Earnings per Share [Member] | Parent Company [Member] |  |  |  |
Earnings Per Share Disclosure |  |  |  |
Income from Continuing Operations, Including Portion Attributable to Noncontrolling Interest |  | $ 224,402 | $ 350,745 | $ 150,946
Income from Continuing Operations Attributable to Noncontrolling Interest |  | (12,180) | (18,458) | (8,013)
Income from continuing operations allocated to unvested restricted shares |  | 0 | (772) | (278)
Dividends, Preferred Stock, Cash |  | (307) | 0 | 0
Income from continuing operations available for common shareholders, adjusted |  | 211,915 | 331,515 | 142,655
Income from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest |  | 0 | 0 | 5,331
Income from Discontinued Operations, Net of Tax, Attributable to Noncontrolling Interest |  | 0 | 0 | (284)
Income from discontinued operations allocated to unvested restricted shares |  | 0 | 0 | (10)
Income from discontinued operations available for common shareholders, adjusted |  | $ 0 | $ 0 | $ 5,037
Diluted Earnings Per Share |  | $ 2.69 | $ 4.41 | $ 1.97
Limited Partnership Units [Member] | Parent Company [Member] |  |  |  |
Earnings Per Share Disclosure |  |  |  |
Effect of dilutive securities (shares) | [1] | 4,200 |  |
Restricted Stock [Member] | Parent Company [Member] |  |  |  |
Earnings Per Share Disclosure |  |  |  |
Effect of dilutive securities (shares) | [2] | 100 |  |
[1] | 4.2 million OP units and their related income are not included in the diluted earnings per share calculations as they are not dilutive.
[2] | 0.1 million potentially dilutive securities and their related income are not included in the diluted earnings per share calculation as they are not dilutive.

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