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Earnings Per Common Share of MAA | 3 Months Ended
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Mar. 31, 2020
Earnings Per Common Share Of M A A [Abstract] |
Earnings per Common Share of MAA | 2.Earnings per Common Share of MAA Basic earnings per share is computed by dividing net income available to MAA common shareholders by the weighted average number of common shares outstanding during the period. All outstanding unvested restricted share awards contain rights to non-forfeitable dividends and participate in undistributed earnings with shareholders and, accordingly, are considered participating securities that are included in the two-class method of computing basic earnings per share. Both the unvested restricted shares and other potentially dilutive common shares, and the related impact to earnings, are considered when calculating earnings per share on a diluted basis with diluted earnings per share being the more dilutive of the treasury stock or two-class methods. OP Units are included in dilutive earnings per share calculations when the units are dilutive to earnings per share. For the three months ended March 31, 2020 and 2019, MAA’s diluted earnings per share was computed using the treasury stock method as presented below (dollars and shares in thousands, except per share amounts):
|  | Three months ended March 31, |
|  | 2020 |  |  | 2019 |
Calculation of Earnings per common share - basic |  |  |  |  |  |  |  |
Net income |  | $ | 37,952 |  |  | $ | 65,958 |
Net income attributable to noncontrolling interests |  |  | (1,304 | ) |  |  | (2,298 | )
Unvested restricted stock (allocation of earnings) |  |  | (50 | ) |  |  | (87 | )
Preferred dividends |  |  | (922 | ) |  |  | (922 | )
Net income available for MAA common shareholders, adjusted |  | $ | 35,676 |  |  | $ | 62,651 |
Weighted average common shares - basic |  |  | 114,111 |  |  |  | 113,726 |
Earnings per common share - basic |  | $ | 0.31 |  |  | $ | 0.55 |
Calculation of Earnings per common share - diluted |  |  |  |  |  |  |  |
Net income |  | $ | 37,952 |  |  | $ | 65,958 |
Net income attributable to noncontrolling interests (1) |  |  | (1,304 | ) |  |  | (2,298 | )
Preferred dividends |  |  | (922 | ) |  |  | (922 | )
Net income available for MAA common shareholders, adjusted |  | $ | 35,726 |  |  | $ | 62,738 |
Weighted average common shares - basic |  |  | 114,111 |  |  |  | 113,726 |
Effect of dilutive securities |  |  | 383 |  |  |  | 207 |
Weighted average common shares - diluted |  |  | 114,494 |  |  |  | 113,933 |
Earnings per common share - diluted |  | $ | 0.31 |  |  | $ | 0.55 |
(1) | For the three months ended March 31, 2020 and 2019, 4.1 million OP Units and their related income are not included in the diluted earnings per share calculations as they are not dilutive.

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- Definition Earnings per common share of MAA. + References No definition available. + Details
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Namespace Prefix: | maa_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -URI http://asc.fasb.org/topic&trid=2144383 + Details
Name: | us-gaap_EarningsPerShareTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration