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Segment Information (Revenues and NOI for Reportable Segment) (Details) - Parent Company [Member] - USD ($) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2015 | Sep. 30, 2015 | Jun. 30, 2015 | Mar. 31, 2015 | Dec. 31, 2014 | Sep. 30, 2014 | Jun. 30, 2014 | Mar. 31, 2014 | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Revenues |  |  |  |  |  |  |  |  |  |  |  |
Real Estate Revenue, Net |  |  |  |  |  |  |  |  | $ 1,042,779,000 | $ 992,178,000 | $ 634,843,000 |
Management fee income |  |  |  |  |  |  |  |  | 0 | 154,000 | 647,000 |
Total operating revenues | $ 263,337,000 | $ 261,998,000 | $ 258,891,000 | $ 258,552,000 | $ 253,219,000 | $ 249,574,000 | $ 245,305,000 | $ 244,234,000 | 1,042,779,000 | 992,332,000 | 635,490,000 |
Net operating income |  |  |  |  |  |  |  |  | 642,134,000 | 598,814,000 | 389,012,000 |
Discontinued operations NOI included above |  |  |  |  |  |  |  |  | 0 | 16,000 | (7,802,000) |
Depreciation and amortization |  |  |  |  |  |  |  |  | (294,520,000) | (301,812,000) | (186,979,000) |
Acquisition expense |  |  |  |  |  |  |  |  | (2,777,000) | (2,388,000) | (1,393,000) |
Property management expense |  |  |  |  |  |  |  |  | (30,990,000) | (32,095,000) | (23,083,000) |
General and administrative expense |  |  |  |  |  |  |  |  | (25,716,000) | (20,909,000) | (15,569,000) |
Merger related expenses |  |  |  |  |  |  |  |  | 0 | (3,152,000) | (32,403,000) |
Integration costs |  |  |  |  |  |  |  |  | 0 | (8,395,000) | (5,102,000) |
Interest and other non-property income |  |  |  |  |  |  |  |  | (368,000) | 770,000 | 466,000 |
Interest expense | 30,834,000 | 30,229,000 | 30,433,000 | 30,848,000 | 31,378,000 | 29,251,000 | 31,337,000 | 31,987,000 | (122,344,000) | (123,953,000) | (78,978,000) |
Gains (Losses) on Extinguishment of Debt |  |  |  |  |  |  |  |  | (3,602,000) | (2,586,000) | (426,000) |
Net casualty (loss) gain after insurance and other settlement proceeds |  |  |  |  |  |  |  |  | 473,000 | (476,000) | (143,000) |
Gain on sale of depreciable real estate assets excluded from discontinued operations |  |  |  |  |  |  |  |  | 189,958,000 | 42,649,000 | 0 |
Income tax expense |  |  |  |  |  |  |  |  | (1,673,000) | (2,050,000) | (893,000) |
Gain on sale of non-depreciable real estate assets |  |  |  |  |  |  |  |  | 172,000 | 350,000 | 0 |
Gain (loss) from real estate joint ventures | 3,000 | (1,000) | (23,000) | 19,000 | (10,000) | 3,124,000 | 2,919,000 | (24,000) | (2,000) | 6,009,000 | 338,000 |
Discontinued operations |  |  |  |  |  |  |  |  | 0 | 5,331,000 | 81,587,000 |
Net income attributable to noncontrolling interests | (2,380,000) | (5,094,000) | (7,574,000) | (3,410,000) | (1,933,000) | (3,743,000) | (1,773,000) | (848,000) | (18,458,000) | (8,297,000) | (3,998,000) |
Net income attributable to MAA | $ 42,987,000 | $ 91,734,000 | $ 136,299,000 | $ 61,267,000 | $ 34,525,000 | $ 66,976,000 | $ 31,613,000 | $ 14,866,000 | 332,287,000 | 147,980,000 | 115,281,000 |
Large Market Same Store |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |  |  |  |
Real Estate Revenue, Net |  |  |  |  |  |  |  |  | 587,896,000 | 553,038,000 | 241,194,000 | [1]
Net operating income |  |  |  |  |  |  |  |  | 361,285,000 | 334,255,000 | 142,988,000 | [1]
Secondary Market Same Store |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |  |  |  |
Real Estate Revenue, Net |  |  |  |  |  |  |  |  | 324,771,000 | 310,281,000 | 242,464,000 | [1]
Net operating income |  |  |  |  |  |  |  |  | 200,989,000 | 190,348,000 | 147,607,000 | [1]
Non Same Store And Other |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |  |  |  |
Real Estate Revenue, Net |  |  |  |  |  |  |  |  | 130,112,000 | 128,859,000 | 151,185,000 | [1]
Net operating income |  |  |  |  |  |  |  |  | $ 79,860,000 | $ 74,211,000 | $ 98,417,000 | [1]
[1] | The 2013 column shows the segment break down based on the 2014 same store portfolios. A comparison using the 2015 same store portfolio would not be comparative due to the nature of the classifications.

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