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Selected Quarterly Financial Information (Details) - USD ($) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2017 | Sep. 30, 2017 | Jun. 30, 2017 | Mar. 31, 2017 | Dec. 31, 2016 | Sep. 30, 2016 | Jun. 30, 2016 | Mar. 31, 2016 | Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Condensed Financial Statements, Captions [Line Items] |  |  |  |  |  |  |  |  |  |  |
Preferred Stock Dividends, Income Statement Impact |  |  |  |  |  |  |  |  |  |  | $ 0
Parent Company [Member] |  |  |  |  |  |  |  |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total operating revenues | $ 382,738,000 | $ 384,550,000 | $ 382,791,000 | $ 378,908,000 | $ 307,198,000 | $ 276,898,000 | $ 272,236,000 | $ 269,016,000 | $ 1,528,987,000 | $ 1,125,348,000 | 1,042,779,000
Income from continuing operations before non-operating items | 96,473,000 | 94,671,000 | 85,976,000 | 77,656,000 | 44,618,000 | 74,823,000 | 78,215,000 | 77,422,000 | 354,776,000 | 275,078,000 | 290,908,000
Interest expense |  |  |  |  |  |  |  |  | (154,751,000) | (129,947,000) | (122,344,000)
Loss from real estate joint ventures |  |  |  |  |  |  |  |  | 1,370,000 | 241,000 | (2,000)
Consolidated net income | 128,007,000 | 118,958,000 | 50,155,000 | 43,416,000 | 42,058,000 | 88,906,000 | 47,630,000 | 45,808,000 | 340,536,000 | 224,402,000 | 350,745,000
Net income attributable to noncontrolling interest |  |  |  |  |  |  |  |  | 12,157,000 | 12,180,000 | 18,458,000
Preferred Stock Dividends, Income Statement Impact |  |  |  |  |  |  |  |  | 3,688,000 | 307,000 |
Net income (loss) available for MAA common shareholders | $ 122,528,000 | $ 113,787,000 | $ 47,393,000 | $ 40,983,000 | $ 39,079,000 | $ 84,279,000 | $ 45,144,000 | $ 43,413,000 | $ 324,691,000 | $ 211,915,000 | $ 332,287,000
Earnings per share - basic | $ 1.08 | $ 1.00 | $ 0.42 | $ 0.36 | $ 0.44 | $ 1.12 | $ 0.60 | $ 0.58 | $ 2.86 | $ 2.69 | $ 4.41
Earnings per share - diluted | $ 1.08 | $ 1.00 | $ 0.42 | $ 0.36 | $ 0.44 | $ 1.12 | $ 0.60 | $ 0.58 | 2.86 | 2.69 | 4.41
Common Stock, Dividends, Per Share, Cash Paid |  |  |  |  |  |  |  |  | $ 3.48 | $ 3.28 | $ 3.08
Net Cash Provided by (Used in) Operating Activities |  |  |  |  |  |  |  |  | $ 658,513,000 | $ 484,039,000 | $ 463,721,000
Proceeds from Stock Options Exercised |  |  |  |  |  |  |  |  | 432,000 | 0 | 420,000
Net Cash Provided by (Used in) Investing Activities |  |  |  |  |  |  |  |  | (283,435,000) | (710,487,000) | (136,215,000)
Return (funding) of escrow for future acquisitions |  |  |  |  |  |  |  |  | 10,591,000 | (58,259,000) | 8,000
Payments To Acquire Real Estate And Other Assets |  |  |  |  |  |  |  |  | (136,065,000) | (339,186,000) | (328,193,000)
Payments for Capital Improvements |  |  |  |  |  |  |  |  | (343,890,000) | (183,977,000) | (166,021,000)
Net Cash Provided by (Used in) Financing Activities |  |  |  |  |  |  |  |  | (397,864,000) | 222,425,000 | (316,600,000)
Limited Partner [Member] |  |  |  |  |  |  |  |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total operating revenues | $ 382,738,000 | $ 384,550,000 | $ 382,791,000 | $ 378,908,000 | $ 307,198,000 | $ 276,898,000 | $ 272,236,000 | $ 269,016,000 | 1,528,987,000 | 1,125,348,000 | 1,042,779,000
Income from continuing operations before non-operating items | 96,473,000 | 94,671,000 | 85,976,000 | 77,656,000 | 44,618,000 | 74,823,000 | 78,215,000 | 77,422,000 | 354,776,000 | 275,078,000 | 290,908,000
Interest expense |  |  |  |  |  |  |  |  | (154,751,000) | (129,947,000) | (122,344,000)
Loss from real estate joint ventures |  |  |  |  |  |  |  |  | 1,370,000 | 241,000 | (2,000)
Consolidated net income | 128,007,000 | 118,958,000 | 50,155,000 | 43,416,000 | 42,058,000 | 88,906,000 | 47,630,000 | 45,808,000 | 340,536,000 | 224,402,000 | 350,745,000
Preferred Stock Dividends, Income Statement Impact |  |  |  |  |  |  |  |  | (3,688,000) | (307,000) | 0
Net Income (Loss) Available to Common Unitholders | $ 127,085,000 | $ 118,036,000 | $ 49,233,000 | $ 42,494,000 | $ 41,751,000 | $ 88,906,000 | $ 47,630,000 | $ 45,808,000 |  |  |
Earnings per share - basic | $ 1.08 | $ 1.00 | $ 0.42 | $ 0.36 | $ 0.45 | $ 1.12 | $ 0.60 | $ 0.61 |  |  |
Earnings per share - diluted | $ 1.08 | $ 1.00 | $ 0.42 | $ 0.36 | $ 0.45 | $ 1.12 | $ 0.60 | $ 0.61 |  |  |
Net Cash Provided by (Used in) Operating Activities |  |  |  |  |  |  |  |  | 658,513,000 | 484,039,000 | 463,721,000
Proceeds from Stock Options Exercised |  |  |  |  |  |  |  |  | 432,000 | 0 | 420,000
Net Cash Provided by (Used in) Investing Activities |  |  |  |  |  |  |  |  | (283,435,000) | (710,487,000) | (136,215,000)
Return (funding) of escrow for future acquisitions |  |  |  |  |  |  |  |  | 10,591,000 | (58,259,000) | 8,000
Payments To Acquire Real Estate And Other Assets |  |  |  |  |  |  |  |  | (136,065,000) | (339,186,000) | (328,193,000)
Payments for Capital Improvements |  |  |  |  |  |  |  |  | (343,890,000) | (183,977,000) | (166,021,000)
Net Cash Provided by (Used in) Financing Activities |  |  |  |  |  |  |  |  | $ (397,864,000) | $ 222,425,000 | $ (316,600,000)

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