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MAA Equity | 3 Months Ended
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Mar. 31, 2016
MAA Equity [Abstract] |
Consolidated Statements of Equity [Text Block] | MAA Equity Total equity and its components for the three-month periods ended March 31, 2016 and 2015 were as follows (dollars in thousands, except per share and per unit data):
| Mid-America Apartment Communities, Inc. Shareholders' Equity |  |  |  |
| Common Stock Amount |  | Additional Paid-In Capital |  | Accumulated Distributions in Excess of Net Income |  | Accumulated Other Comprehensive Income (Loss) |  | Noncontrolling Interest |  | Total Equity
EQUITY BALANCE DECEMBER 31, 2015 | $ | 753 |  |  | $ | 3,627,074 |  |  | $ | (634,141 | ) |  | $ | (1,589 | ) |  | $ | 165,726 |  |  | $ | 3,157,823 |
Net income | — |  |  | — |  |  | 43,413 |  |  | — |  |  | 2,395 |  |  | 45,808 |
Other comprehensive loss - derivative instruments (cash flow hedges) | — |  |  | — |  |  | — |  |  | (2,387 | ) |  | (132 | ) |  | (2,519 | )
Issuance and registration of common shares | 1 |  |  | 89 |  |  | — |  |  | — |  |  | — |  |  | 90 |
Shares repurchased and retired | — |  |  | (1,730 | ) |  | — |  |  | — |  |  | — |  |  | (1,730 | )
Shares issued in exchange for units | — |  |  | 33 |  |  | — |  |  | — |  |  | (33 | ) |  | — |
Shares issued in exchange from redeemable stock | — |  |  | 123 |  |  | — |  |  | — |  |  | — |  |  | 123 |
Redeemable stock fair market value adjustment | — |  |  | — |  |  | (1,100 | ) |  | — |  |  | — |  |  | (1,100 | )
Adjustment for noncontrolling interest ownership in operating partnership | — |  |  | 40 |  |  | — |  |  | — |  |  | (40 | ) |  | — |
Amortization of unearned compensation | — |  |  | 2,078 |  |  | — |  |  | — |  |  | — |  |  | 2,078 |
Dividends on common stock ($0.82 per share) | — |  |  | — |  |  | (61,928 | ) |  | — |  |  | — |  |  | (61,928 | )
Dividends on noncontrolling interest units ($0.82 per unit) | — |  |  | — |  |  | — |  |  | — |  |  | (3,412 | ) |  | (3,412 | )
EQUITY BALANCE MARCH 31, 2016 | $ | 754 |  |  | $ | 3,627,707 |  |  | $ | (653,756 | ) |  | $ | (3,976 | ) |  | $ | 164,504 |  |  | $ | 3,135,233 |
| Mid-America Apartment Communities, Inc. Shareholders' Equity |  |  |  |
| Common Stock Amount |  | Additional Paid-In Capital |  | Accumulated Distributions in Excess of Net Income |  | Accumulated Other Comprehensive Income (Loss) |  | Noncontrolling Interest |  | Total Equity
EQUITY BALANCE DECEMBER 31, 2014 | $ | 752 |  |  | $ | 3,619,270 |  |  | $ | (729,086 | ) |  | $ | (412 | ) |  | $ | 161,287 |  |  | $ | 3,051,811 |
Net income | — |  |  | — |  |  | 61,267 |  |  | — |  |  | 3,410 |  |  | 64,677 |
Other comprehensive income - derivative instruments (cash flow hedges) | — |  |  | — |  |  | — |  |  | (2,041 | ) |  | (114 | ) |  | (2,155 | )
Issuance and registration of common shares | 1 |  |  | 7 |  |  | — |  |  | — |  |  | — |  |  | 8 |
Shares repurchased and retired | — |  |  | (937 | ) |  | — |  |  | — |  |  | — |  |  | (937 | )
Shares issued in exchange for units | — |  |  | 46 |  |  | — |  |  | — |  |  | (46 | ) |  | — |
Redeemable stock fair market value adjustment | — |  |  | — |  |  | (209 | ) |  | — |  |  | — |  |  | (209 | )
Adjustment for noncontrolling interest ownership in operating partnership | — |  |  | 128 |  |  | — |  |  | — |  |  | (128 | ) |  | — |
Amortization of unearned compensation | — |  |  | 1,462 |  |  | — |  |  | — |  |  | — |  |  | 1,462 |
Dividends on common stock ($0.77 per share) | — |  |  | — |  |  | (58,034 | ) |  | — |  |  | — |  |  | (58,034 | )
Dividends on noncontrolling interest units ($0.77 per unit) | — |  |  | — |  |  | — |  |  | — |  |  | (3,226 | ) |  | (3,226 | )
EQUITY BALANCE MARCH 31, 2015 | $ | 753 |  |  | $ | 3,619,976 |  |  | $ | (726,062 | ) |  | $ | (2,453 | ) |  | $ | 161,183 |  |  | $ | 3,053,397 |

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- Definition MAA Equity [Abstract] + References No definition available. + Details
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