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Earnings Per OP Unit of MAALP - Schedule of Diluted Earnings per Common Unit (Details) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019
Earnings Per Share Disclosure [Line Items] |  |  |  |
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest | $ 62,036 | $ 81,459 | $ 177,716 | $ 211,558
Dividends, Preferred Stock, Cash | (922) | (922) | (2,766) | (2,766)
Income from continuing operations available for common shareholders, adjusted | $ 58,910 | $ 77,605 | $ 168,625 | $ 201,154
Earnings per share - basic | $ 0.52 | $ 0.68 | $ 1.48 | $ 1.77
Net income available for MAA common shareholders, adjusted | $ 58,988 | $ 77,723 | $ 168,854 | $ 201,456
Effect of dilutive securities | 252,000 | 260,000 | 310,000 | 238,000
Weighted average common shares - diluted | 114,468,000 | 114,137,000 | 114,487,000 | 114,052,000
Earnings per common unit - diluted | $ 0.52 | $ 0.68 | $ 1.47 | $ 1.77
Limited Partner [Member] |  |  |  |
Earnings Per Share Disclosure [Line Items] |  |  |  |
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest | $ 62,036 | $ 81,459 | $ 177,716 | $ 211,558
Income from continuing operations allocated to unvested restricted shares | (78) | (118) | (229) | (302)
Dividends, Preferred Stock, Cash | (922) | (922) | (2,766) | (2,766)
Income from continuing operations available for common shareholders, adjusted | $ 61,036 | $ 80,419 | $ 174,721 | $ 208,490
Weighted average common units - basic | 118,274 | 117,958 | 118,238 | 117,910
Earnings per share - basic | $ 0.52 | $ 0.68 | $ 1.48 | $ 1.77
Net income available for MAA common shareholders, adjusted | $ 61,114 | $ 80,537 | $ 174,950 | $ 208,792
Effect of dilutive securities | 252 | 260 | 310 | 238
Weighted average common shares - diluted | 118,526 | 118,218 | 118,548 | 118,148
Earnings per common unit - diluted | $ 0.52 | $ 0.68 | $ 1.48 | $ 1.77

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