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Shareholders' Equity of MAA | 6 Months Ended
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Jun. 30, 2017
Shareholders' Equity of MAA [Abstract] |
Stockholders' Equity Note Disclosure [Text Block] | Shareholders' Equity of MAA On June 30, 2017, 113,607,734 shares of common stock of MAA and 4,215,678 OP Units in the Operating Partnership (excluding the OP Units held by MAA) were issued and outstanding, representing a total of 117,823,412 common shares and units. At June 30, 2016, 75,524,086 shares of common stock of MAA and 4,159,003 OP Units in the Operating Partnership (excluding OP Units held by MAA) were issued and outstanding, representing a total of 79,683,089 common shares and units. There were 108,438 options to acquire shares of MAA common stock outstanding as of June 30, 2017 compared to 39,084 outstanding options as of June 30, 2016. During the six months ended June 30, 2017, 47,956 shares of MAA common stock were acquired from employees to satisfy minimum tax withholding obligations that arose upon vesting of restricted stock granted pursuant to approved plans. During the six months ended June 30, 2016, 18,988 shares were acquired for that purpose. During the six months ended June 30, 2017, we issued 10,340 shares related to the exercise of stock options. These exercises resulted in proceeds of $0.4 million. During the six months ended June 30, 2016 there were no stock options exercised. Preferred Stock As of June 30, 2017, MAA had one outstanding series of cumulative redeemable preferred stock which has the following characteristics:
Description |  | Outstanding Shares |  | Liquidation Preference(1) |  | Optional Redemption Date |  | Redemption Price (2) |  | Stated Dividend Yield |  | Approximate Dividend Rate
|  |  |  | (per share) |  |  |  | (per share) |  | (per share) |  | (per share)
Series I |  | 867,846 |  | $50.00 |  | 10/1/2026 |  | $50.00 |  | 8.50% |  | $4.25
(1) The total liquidation preference for outstanding preferred stock is $43.4 million. (2) The redemption price is the price at which the preferred stock is redeemable, at MAA's option, for cash.

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- Definition Shareholders' Equity of MAA [Abstract] + References No definition available. + Details
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- Definition The entire disclosure for shareholders' equity comprised of portions attributable to the parent entity and noncontrolling interest, including other comprehensive income. Includes, but is not limited to, balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings, accumulated balance for each classification of other comprehensive income and amount of comprehensive income. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -URI http://asc.fasb.org/topic&trid=2208762 + Details
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