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v3.3.1.900

Shareholder's Equity (Details) - USD ($) | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 08, 2015 | Dec. 31, 1999
Stockholders Equity Note [Line Items] |  |  |  |  |
Common stock, shares outstanding | 75,408,571 | 75,267,675 |  |  |
Common shares and operating partnership units outstanding | 79,571,567 | 79,458,827 |  |  |
Treasury Stock, Shares, Acquired | 11,914 | 9,270 |  |  |
RepurchasePlan%CSoutstanding | 5.30% |  |  |  |
Shares, Outstanding |  |  |  | 2,100,000 |
Equity Option [Member] |  |  |  |  |
Stockholders Equity Note [Line Items] |  |  |  |  |
Common stock shares issued (shares) | 7,342 | 270,459 | 110,715 |  |
Maximum |  |  |  |  |
Stockholders Equity Note [Line Items] |  |  |  |  |
Common stock authorized for repurchase plan (shares) | 4,000,000.0 |  |  |  | 4,000,000.0
Period Covered from 1999 to 2011 |  |  |  |  |
Stockholders Equity Note [Line Items] |  |  |  |  |
Common stock repurchased and retired (shares) | 1,900,000 |  |  |  |
Common stock repurchased and retired, value | $ 42,000,000 |  |  |  |
Common stock repurchased and retired (dollars per share) | $ 22.54 |  |  |  |
Dividend And Distribution Reinvestment And Share Purchase Plan |  |  |  |  |
Stockholders Equity Note [Line Items] |  |  |  |  |
Common stock issued for shareholders to reinvest distributions (shares) | 8,562 | 9,055 | 10,924 |  |
Dividend And Distribution Reinvestment And Share Purchase Plan | Minimum |  |  |  |  |
Stockholders Equity Note [Line Items] |  |  |  |  |
Optional cash investments in common shares | $ 250 |  |  |  |
Dividend And Distribution Reinvestment And Share Purchase Plan | Maximum |  |  |  |  |
Stockholders Equity Note [Line Items] |  |  |  |  |
Optional cash investments in common shares | $ 5,000 |  |  |  |
Common stock registered for Dividend and Distribution Reinvestment and Share Purchase Plan (shares) | 9,600,000 |  |  |  |
Discount rate on sale of common stock (percent) | 5.00% |  |  |  |
Noncontrolling Interest |  |  |  |  |
Stockholders Equity Note [Line Items] |  |  |  |  |
Common Shares Issuable Upon Conversion Of Convertible Stock | 4,162,996 | 4,191,152 |  |  |
Limited Partners' Capital Account | $ 378,041,667 | $ 312,995,231 |  |  |
Redeemable Capital Shares Par Or Stated Value Per Share | $ 90.81 | $ 74.68 |  |  |
Percentage of Operating Partnership net income (percent) | 5.20% | 5.30% | 4.60% |  |
MAA |  |  |  |  |
Stockholders Equity Note [Line Items] |  |  |  |  |
Percentage of Operating Partnership net income (percent) | 94.80% | 94.70% | 95.40% |  |
Parent Company [Member] |  |  |  |  |
Stockholders Equity Note [Line Items] |  |  |  |  |
Common stock, shares outstanding | 75,408,571 | 75,267,675 |  |  |
Common stock registered for Dividend and Distribution Reinvestment and Share Purchase Plan (shares) | 100,000,000 | 100,000,000 |  |  |
Proceeds from issuance of common stock | $ 622,000 | $ 1,042,000 | $ 25,680,000 |  |
Proceeds from Stock Options Exercised | $ 420,000 | $ 12,245,000 | 6,212,000 |  |
Employee Stock Option [Member] |  |  |  |  |
Stockholders Equity Note [Line Items] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number | 58,112 | 74,454 |  |  |
Proceeds from Stock Options Exercised | $ 400,000 | $ 12,200,000 | $ 6,200,000 |  |

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