10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

ý QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended September 30, 2014

or

¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from ______ to ______

Commission File Number 001-12762 (Mid-America Apartment Communities, Inc.)

Commission File Number 333-190028-01 (Mid-America Apartments, L.P.)

MID-AMERICA APARTMENT COMMUNITIES, INC.

MID-AMERICA APARTMENTS, L.P.

(Exact name of registrant as specified in its charter)

Tennessee (Mid-America Apartment Communities, Inc.)	62-1543819
Tennessee (Mid-America Apartments, L.P.)	62-1543816
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification Number)

6584 Poplar Avenue, Memphis, Tennessee, 38138

(Address of principal executive offices) (Zip Code)

(901) 682-6600

(Registrant's telephone number, including area code)

N/A

(Former name, former address and former fiscal year, if changed since last report)

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports) and (2) has been subject to such filing requirements for the past 90 days.
Mid-America Apartment Communities, Inc.	YES R	NO o
Mid-America Apartments, L.P.	YES R	NO o
Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).
Mid-America Apartment Communities, Inc.	YES R	NO o
Mid-America Apartments, L.P.	YES R	NO o

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company.  See definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act.
Mid-America Apartment Communities, Inc.
	Large accelerated filer R	Accelerated filer o	Non-accelerated filer o	Smaller reporting company o
			(Do not check if a smaller reporting company)
Mid-America Apartments, L.P.
	Large accelerated filer o	Accelerated filer o	Non-accelerated filer R	Smaller reporting company o
			(Do not check if a smaller reporting company)

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).
Mid-America Apartment Communities, Inc.	YES o	NO R
Mid-America Apartments, L.P.	YES o	NO R

Indicate the number of shares outstanding of each of the issuer's classes of common stock, as of the latest practicable date:

	Number of Shares Outstanding at
Class	October 27, 2014
Common Stock, $0.01 par value	75,254.249

MID-AMERICA APARTMENT COMMUNITIES, INC.

MID-AMERICA APARTMENTS, L.P.

TABLE OF CONTENTS

		Page
	PART I – FINANCIAL INFORMATION
Item 1.	Financial Statements.
Mid-America Apartment Communities, Inc.
	Condensed Consolidated Balance Sheets as of September 30, 2014 (Unaudited) and December 31, 2013 (Unaudited).	4
	Condensed Consolidated Statements of Operations for the three and nine months ended September 30, 2014 (Unaudited) and 2013 (Unaudited).	5
	Condensed Consolidated Statements of Comprehensive Income for the three and nine months ended September 30, 2014 (Unaudited) and 2013 (Unaudited).	6
	Condensed Consolidated Statements of Cash Flows for the nine months ended September 30, 2014 (Unaudited) and 2013 (Unaudited).	7
Mid-America Apartments, L.P.
	Condensed Consolidated Balance Sheets as of September 30, 2014 (Unaudited) and December 31, 2013 (Unaudited).	8
	Condensed Consolidated Statements of Operations for the three and nine months ended September 30, 2014 (Unaudited) and 2013 (Unaudited).	9
	Condensed Consolidated Statements of Comprehensive Income for the three and nine months ended September 30, 2014 (Unaudited) and 2013 (Unaudited).	10
	Condensed Consolidated Statements of Cash Flows for the nine months ended September 30, 2014 (Unaudited) and 2013 (Unaudited).	11
	Notes to Condensed Consolidated Financial Statements (Unaudited).	12
Item 2.	Management's Discussion and Analysis of Financial Condition and Results of Operations.	36
Item 3.	Quantitative and Qualitative Disclosures About Market Risk.	52
Item 4.	Controls and Procedures.	52
	PART II – OTHER INFORMATION
Item 1.	Legal Proceedings.	53
Item 1A.	Risk Factors.	53
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds.	54
Item 3.	Defaults Upon Senior Securities.	54
Item 4.	Mine Safety Disclosures.	54
Item 5.	Other Information.	54
Item 6.	Exhibits.	55
	Signatures.	56
	Exhibit Index.	58

1

Explanatory Note

This Report combines the quarterly reports on Form 10-Q for the quarter ended September 30, 2014 of Mid-America Apartment Communities, Inc., a Tennessee corporation and Mid-America Apartments, L.P., a Tennessee limited partnership, of which Mid-America Apartment Communities, Inc. is the sole general partner. Mid-America Apartment Communities, Inc. and its 94.7% owned subsidiary, Mid-America Apartments, L.P., are both required to file periodic reports under the Securities Exchange Act of 1934, as amended.

Unless the context otherwise requires, all references in this Report to “MAA” refers only to Mid-America Apartment Communities, Inc., and not to any of its consolidated subsidiaries. Unless the context otherwise requires, all references in this Report to "we," "us," "our," or the "Company" refer collectively to Mid-America Apartment Communities, Inc., together with its consolidated subsidiaries, including Mid-America Apartments, L.P. Unless the context otherwise requires, the references in this Report to the “Operating Partnership” or “MAALP” refer to Mid-America Apartments, L.P. together with its consolidated subsidiaries. “Common stock” refers to the common stock of MAA and “shareholders” means the holders of shares of MAA’s common stock. The limited partnership interests of the Operating Partnership are referred to as “OP Units” and the holders of the OP Units are referred to as “unitholders”.

As of September 30, 2014, MAA owned 75,242,266 units (or approximately 94.7%) of the limited partnership interests of the Operating Partnership. MAA conducts substantially all of its business and holds substantially all of its assets through the Operating Partnership, and by virtue of its ownership of the OP Units and being the Operating Partnership's sole general partner, MAA has the ability to control all of the day-to-day operations of the Operating Partnership.

We believe combining the quarterly reports on Form 10-Q of MAA and the Operating Partnership, including the notes to the condensed consolidated financial statements, into this single report results in the following benefits:

• enhances investors' understanding of MAA and the Operating Partnership by enabling investors to view the business as a whole in the same manner that management views and operates the business;

• eliminates duplicative disclosure and provides a more streamlined and readable presentation since a substantial portion of the disclosure in this report applies to both MAA and the Operating Partnership; and

• creates time and cost efficiencies through the preparation of one combined report instead of two separate reports.

Management operates MAA and the Operating Partnership as one business. The management of the Company is comprised of individuals who are officers of MAA and employees of the Operating Partnership. We believe it is important to understand the few differences between MAA and the Operating Partnership in the context of how MAA and the Operating Partnership operate as a consolidated company. MAA and the Operating Partnership are structured as an "umbrella partnership REIT," or UPREIT. MAA's interest in the Operating Partnership entitles MAA to share in cash distributions from, and in the profits and losses of, the Operating Partnership in proportion to MAA's percentage interest therein and entitles MAA to vote on substantially all matters requiring a vote of the limited partners. MAA's only material asset is its ownership of limited partner interests in the Operating Partnership; therefore, MAA does not conduct business itself, other than acting as the sole general partner of the Operating Partnership, issuing public equity from time-to-time and guaranteeing certain debt of the Operating Partnership. The Operating Partnership holds, directly or indirectly, all of our real estate assets. Except for net proceeds from public equity issuances by MAA, which are contributed to the Operating Partnership in exchange for limited partner interests, the Operating Partnership generates the capital required by the Company's business through the Operating Partnership's operations, direct or indirect incurrence of indebtedness and issuance of partnership units.

The presentation of MAA's shareholders' equity and the Operating Partnership's capital are the principal areas of difference between the consolidated financial statements of MAA and those of the Operating Partnership. MAA's shareholders' equity may include shares of preferred stock, shares of common stock, additional paid-in capital, cumulative earnings, cumulative distributions, noncontrolling interest, preferred units, treasury shares, accumulated other comprehensive income and redeemable common units. The Operating Partnership's capital may include common capital and preferred capital of the general partner (MAA), limited partners' preferred capital, limited partners' noncontrolling interest, accumulated other comprehensive income and redeemable common units. Redeemable common units represent the number of outstanding OP Units as of the date of the applicable balance sheet, valued for conversion at the greater of the closing market price of MAA's common stock or the aggregate value of the individual partners' capital balances. Holders of common units in the Operating Partnership (other than MAA and its entity affiliates) may require the Operating Partnership to redeem their common units, in which case the Operating Partnership may, at its option, pay the redemption price either in cash (in an amount per common unit equal, in general, to the average closing price of MAA’s common stock on the New York Stock Exchange, or “NYSE”, over a specified period of time prior to the redemption date) or by delivering one share of our common stock (subject to adjustment under specified circumstances) for each common unit so redeemed.

2

In order to highlight the material differences between MAA and the Operating Partnership, this report includes sections that separately present and discuss areas that are materially different between MAA and the Operating Partnership, including:

• the consolidated financial statements in Item 1 of this report;

• certain accompanying notes to the financial statements, including Note 3 - Earnings per Common Share of MAA and Note 4 - Earnings per OP Unit of MAALP; and Note 10 - Shareholders' Equity of MAA and Note 11 - Partners' Capital of MAALP;

• the certifications of the Chief Executive Officer and Chief Financial Officer of MAA included as Exhibits 31 and 32 to this report.

In the sections that combine disclosure for MAA and the Operating Partnership, this report refers to actions or holdings as being actions or holdings of the Company. Although the Operating Partnership (directly or indirectly through one of its subsidiaries) is generally the entity that enters into contracts, holds assets and issues debt, management believes this presentation is appropriate for the reasons set forth above and because the business is one enterprise and we operate the business through the Operating Partnership.

3

Mid-America Apartment Communities, Inc.

Condensed Consolidated Balance Sheets

September 30, 2014 and December 31, 2013

(Unaudited)

(Dollars in thousands, except share data)

	September 30, 2014			December 31, 2013
Assets:
Real estate assets:
Land	$	872,786		$	871,316
Buildings and improvements	6,595,550			6,366,701
Furniture, fixtures and equipment	208,653			199,573
Development and capital improvements in progress	59,161			166,048
	7,736,150			7,603,638
Less accumulated depreciation	(1,288,374		)	(1,124,207		)
	6,447,776			6,479,431
Undeveloped land	58,700			63,850
Corporate properties, net	8,263			7,523
Investments in real estate joint ventures	1,802			5,499
Real estate assets, net	6,516,541			6,556,303
Cash and cash equivalents	87,766			89,333
Restricted cash	59,786			44,361
Deferred financing costs, net	17,870			17,424
Other assets	62,996			91,637
Goodwill	2,321			4,106
Assets held for sale	35,734			38,761
Total assets	$	6,783,014		$	6,841,925
Liabilities and Shareholders' Equity:
Liabilities:
Secured notes payable	$	1,554,592		$	1,790,935
Unsecured notes payable	1,875,422			1,681,783
Accounts payable	10,089			15,067
Fair market value of interest rate swaps	13,132			20,015
Accrued expenses and other liabilities	238,849			206,268
Security deposits	9,970			9,270
Total liabilities	3,702,054			3,723,338
Redeemable stock	5,028			5,050
Shareholders' equity:
Common stock, $0.01 par value per share, 100,000,000 shares authorized; 75,242,266 and 74,830,726 shares issued and outstanding at September 30, 2014 and December 31, 2013, respectively (1)	752			747
Additional paid-in capital	3,616,847			3,599,549
Accumulated distributions in excess of net income	(705,022		)	(653,593		)
Accumulated other comprehensive income	396			108
Total MAA shareholders' equity	2,912,973			2,946,811
Noncontrolling interest	162,959			166,726
Total equity	3,075,932			3,113,537
Total liabilities and equity	$	6,783,014		$	6,841,925

⁽¹⁾  Number of shares issued and outstanding represent total shares of common stock regardless of classification on the consolidated balance sheet. The number of shares classified as redeemable stock on the consolidated balance sheet for September 30, 2014 and December 31, 2013 are 85,164 and 83,139, respectively.

See accompanying notes to condensed consolidated financial statements.

4

Mid-America Apartment Communities, Inc.

Condensed Consolidated Statements of Operations

Three and nine months ended September 30, 2014 and 2013

(Unaudited)

(Dollars in thousands, except per share data)

	Three months ended September 30,						Nine months ended September 30,
	2014			2013			2014			2013
Operating revenues:
Rental revenues	$	225,789		$	124,612		$	669,387		$	363,445
Other property revenues	22,981			10,648			67,266			31,217
Total property revenues	248,770			135,260			736,653			394,662
Management fee income	11			146			169			465
Total operating revenues	248,781			135,406			736,822			395,127
Property operating expenses:
Personnel	26,355			14,930			76,447			43,332
Building repairs and maintenance	8,703			4,554			22,286			11,557
Real estate taxes and insurance	30,918			16,741			92,735			48,187
Utilities	14,874			7,506			41,534			20,900
Landscaping	4,002			2,894			15,391			8,595
Other operating	15,781			9,068			47,225			26,464
Depreciation and amortization	70,222			32,766			229,866			97,183
Total property operating expenses	170,855			88,459			525,484			256,218
Acquisition expense	13			—			971			499
Property management expenses	7,429			4,970			24,019			15,301
General and administrative expenses	6,511			3,976			16,065			10,604
Merger related expenses	331			5,561			3,202			11,298
Integration related expenses	147			35			7,140			35
Income from continuing operations before non-operating items	63,495			32,405			159,941			101,172
Interest and other non-property income	85			16			1,166			86
Interest expense	(28,251		)	(14,923		)	(89,090		)	(45,657		)
Loss on debt extinguishment/modification	(2,586		)	(218		)	(2,586		)	(387		)
Amortization of deferred financing costs	(1,000		)	(820		)	(3,485		)	(2,427		)
Net casualty (loss) gain after insurance and other settlement proceeds	(126		)	—			(431		)	455
Gain on sale of depreciable real estate assets excluded from discontinued operations	36,032			—			42,254			—
Gain on sale of non-depreciable real estate assets	—			—			535			—
Income before income tax expense	67,649			16,460			108,304			53,242
Income tax expense	(442		)	(223		)	(1,235		)	(669		)
Income from continuing operations before joint venture activity	67,207			16,237			107,069			52,573
Gain from real estate joint ventures	3,124			60			6,019			161
Income from continuing operations	70,331			16,297			113,088			52,734
Discontinued operations:
Income from discontinued operations before (loss) gain on sale	488			972			1,353			4,451
Net casualty gain (loss) after insurance and other settlement proceeds on discontinued operations	3			(1		)	—			(5		)
(Loss) gain on sale of discontinued operations	(103		)	28,788			5,378			71,909
Consolidated net income	70,719			46,056			119,819			129,089
Net income attributable to noncontrolling interests	3,743			1,772			6,364			4,536
Net income available for MAA common shareholders	$	66,976		$	44,284		$	113,455		$	124,553
Earnings per common share - basic:
Income from continuing operations available for common shareholders	$	0.89		$	0.37		$	1.43		$	1.19
Discontinued property operations	—			0.67			0.08			1.73
Net income available for common shareholders	$	0.89		$	1.04		$	1.51		$	2.92
Earnings per common share - diluted:
Income from continuing operations available for common shareholders	$	0.89		$	0.37		$	1.43		$	1.19
Discontinued property operations	—			0.67			0.08			1.72
Net income available for common shareholders	$	0.89		$	1.04		$	1.51		$	2.91
Dividends declared per common share	$	0.7300		$	0.6950		$	2.1900		$	2.0850

See accompanying notes to condensed consolidated financial statements.

5

Mid-America Apartment Communities, Inc.

Condensed Consolidated Statements of Comprehensive Income

Three and nine months ended September 30, 2014 and 2013

(Unaudited)

(Dollars in thousands)

	Three months ended September 30,						Nine months ended September 30,
	2014			2013			2014			2013
Consolidated net income	$	70,719		$	46,056		$	119,819		$	129,089
Other comprehensive income:
Unrealized (losses) gains from the effective portion of derivative instruments	(696		)	(1,826		)	(9,096		)	10,096
Reclassification adjustment for net losses included in net income for the effective portion of derivative instruments	2,589			3,621			9,399			12,098
Total comprehensive income	72,612			47,851			120,122			151,283
Less: comprehensive income attributable to noncontrolling interests	(3,845		)	(1,830		)	(6,379		)	(5,275		)
Comprehensive income attributable to MAA	$	68,767		$	46,021		$	113,743		$	146,008
See accompanying notes to condensed consolidated financial statements.

6

Mid-America Apartment Communities, Inc.

Condensed Consolidated Statements of Cash Flows

Nine months endedSeptember 30, 2014 and 2013

(Unaudited)

(Dollars in thousands)

	Nine months ended September 30,
	2014			2013
Cash flows from operating activities:
Consolidated net income	$	119,819		$	129,089
Adjustments to reconcile net income to net cash provided by operating activities:
Retail revenue accretion	(17		)	(29		)
Depreciation and amortization	233,312			102,158
Stock compensation expense	3,180			1,729
Redeemable stock issued	690			535
Amortization of debt premium	(20,121		)	(948		)
Gain from investments in real estate joint ventures	(3,159		)	(161		)
Loss on debt extinguishment	2,586			387
Derivative interest (credit) expense	(2,543		)	827
Settlement of forward swaps	(3,625		)	—
Gain on sale of non-depreciable real estate assets	(535		)	—
Gain on sale of depreciable real estate assets excluded from discontinued operations	(42,254		)	—
Gain on sale of discontinued operations	(5,378		)	(71,909		)
Net casualty loss (gain) and other settlement proceeds	431			(450		)
Changes in assets and liabilities:
Restricted cash	15,062			(391		)
Other assets	(5,016		)	(7,611		)
Accounts payable	(1,665		)	2,377
Accrued expenses and other	31,630			12,951
Security deposits	688			223
Net cash provided by operating activities	323,085			168,777
Cash flows from investing activities:
Purchases of real estate and other assets	(180,272		)	(89,866		)
Normal capital improvements	(71,140		)	(35,412		)
Construction capital and other improvements	(4,456		)	(3,873		)
Renovations to existing real estate assets	(11,950		)	(8,616		)
Development	(40,752		)	(26,129		)
Distributions from real estate joint ventures	15,964			8,311
Contributions to real estate joint ventures	—			(183		)
Proceeds from disposition of real estate assets	241,691			118,783
Funding of escrow for future acquisitions	(30,487		)	(57,380		)
Net cash used in investing activities	(81,402		)	(94,365		)
Cash flows from financing activities:
Net change in credit lines	(216,184		)	177,000
Proceeds from notes payable	396,532			—
Principal payments on notes payable	(258,105		)	(8,695		)
Payment of deferred financing costs	(4,156		)	(2,655		)
Repurchase of common stock	(456		)	(682		)
Proceeds from issuances of common shares	728			25,038
Exercise of stock options	11,916			—
Distributions to noncontrolling interests	(9,227		)	(3,574		)
Dividends paid on common shares	(164,298		)	(88,814		)
Net cash (used in) provided by financing activities	(243,250		)	97,618
Net (decrease) increase in cash and cash equivalents	(1,567		)	172,030
Cash and cash equivalents, beginning of period	89,333			9,075
Cash and cash equivalents, end of period	$	87,766		$	181,105
Supplemental disclosure of cash flow information:
Interest paid	$	101,252		$	48,534
Income taxes paid	$	1,596		$	803
Supplemental disclosure of noncash investing and financing activities:
Conversion of units to shares of common stock	$	992		$	550
Accrued construction in progress	$	6,539		$	4,190
Interest capitalized	$	1,253		$	1,118
Marked-to-market adjustment on derivative instruments	$	6,471		$	21,367
Fair value adjustment on debt assumed	$	2,720		$	704
Loan assumption	$	52,521		$	18,293

See accompanying notes to condensed consolidated financial statements.

7

Mid-America Apartments, L.P.

Condensed Consolidated Balance Sheets

September 30, 2014 and December 31, 2013

(Dollars in thousands, except unit data)

	September 30, 2014			December 31, 2013
Assets:
Real estate assets:
Land	$	872,786		$	871,316
Buildings and improvements	6,595,550			6,366,701
Furniture, fixtures and equipment	208,653			199,573
Development and capital improvements in progress	59,161			166,048
	7,736,150			7,603,638
Less accumulated depreciation	(1,288,374		)	(1,124,207		)
	6,447,776			6,479,431
Undeveloped land	58,700			63,850
Corporate properties, net	8,263			7,523
Investments in real estate joint ventures	1,802			5,499
Real estate assets, net	6,516,541			6,556,303
Cash and cash equivalents	87,766			89,333
Restricted cash	59,786			44,361
Deferred financing costs, net	17,870			17,424
Other assets	62,996			91,637
Goodwill	2,321			4,106
Assets held for sale	35,734			38,761
Total assets	$	6,783,014		$	6,841,925
Liabilities and Capital:
Liabilities:
Secured notes payable	$	1,554,592		$	1,790,935
Unsecured notes payable	1,875,422			1,681,783
Accounts payable	10,089			15,067
Fair market value of interest rate swaps	13,132			20,015
Accrued expenses and other liabilities	238,849			206,268
Security deposits	9,970			9,270
Due to general partner	19			19
Total liabilities	3,702,073			3,723,357
Redeemable units	5,028			5,050
Capital:
General partner: 75,242,266 OP Units outstanding at September 30, 2014 and 74,830,726 OP Units outstanding at December 31, 2013 (1)	2,912,499			2,946,598
Limited partners: 4,202,123 OP Units outstanding at September 30, 2014 and 4,227,384 OP Units outstanding at December 31, 2013 (1)	162,937			166,746
Accumulated other comprehensive income	477			174
Total capital	3,075,913			3,113,518
Total liabilities and capital	$	6,783,014		$	6,841,925

⁽¹⁾  Number of units outstanding represent total OP Units regardless of classification on the consolidated balance sheet. The number of units classified as redeemable units on the consolidated balance sheet at September 30, 2014 and December 31, 2013 are 85,164 and 83,139, respectively.

See accompanying notes to condensed consolidated financial statements.

8

Mid-America Apartments, L.P.

Condensed Consolidated Statements of Operations

Three and nine months ended September 30, 2014 and 2013

(Unaudited)

(Dollars in thousands, except per unit data)

	Three months ended September 30,						Nine months ended September 30,
	2014			2013			2014			2013
Operating revenues:
Rental revenues	$	225,789		$	124,612		$	669,387		$	363,445
Other property revenues	22,981			10,648			67,266			31,217
Total property revenues	248,770			135,260			736,653			394,662
Management fee income	11			146			169			465
Total operating revenues	248,781			135,406			736,822			395,127
Property operating expenses:
Personnel	26,355			14,930			76,447			43,332
Building repairs and maintenance	8,703			4,554			22,286			11,557
Real estate taxes and insurance	30,918			16,741			92,735			48,187
Utilities	14,874			7,506			41,534			20,900
Landscaping	4,002			2,894			15,391			8,595
Other operating	15,781			9,068			47,225			26,464
Depreciation and amortization	70,222			32,766			229,866			97,183
Total property operating expenses	170,855			88,459			525,484			256,218
Acquisition expense	13			—			971			499
Property management expenses	7,429			4,970			24,019			15,301
General and administrative expenses	6,511			3,976			16,065			10,604
Merger related expenses	331			5,561			3,202			11,298
Integration related expenses	147			35			7,140			35
Income from continuing operations before non-operating items	63,495			32,405			159,941			101,172
Interest and other non-property income	85			16			1,166			86
Interest expense	(28,251		)	(14,923		)	(89,090		)	(45,657		)
Loss on debt extinguishment/modification	(2,586		)	(218		)	(2,586		)	(387		)
Amortization of deferred financing costs	(1,000		)	(820		)	(3,485		)	(2,427		)
Net casualty (loss) gain after insurance and other settlement proceeds	(126		)	—			(431		)	455
Gain on sale of depreciable real estate assets excluded from discontinued operations	36,032			—			42,254			—
Gain on sale of non-depreciable real estate assets	—			—			535			—
Income before income tax expense	67,649			16,460			108,304			53,242
Income tax expense	(442		)	(223		)	(1,235		)	(669		)
Income from continuing operations before joint venture activity	67,207			16,237			107,069			52,573
Gain from real estate joint ventures	3,124			60			6,019			161
Income from continuing operations	70,331			16,297			113,088			52,734
Discontinued operations:
Income from discontinued operations before (loss) gain on sale	488			973			1,353			4,054
Net casualty gain (loss) after insurance and other settlement proceeds on discontinued operations	3			(1		)	—			(5		)
(Loss) gain on sale of discontinued operations	(103		)	28,806			5,378			60,585
Net income available for Mid-America Apartments, L.P. common unitholders	$	70,719		$	46,075		$	119,819		$	117,368
Earnings per common unit - basic:
Income from continuing operations available for common unitholders	$	0.89		$	0.37		$	1.43		$	1.19
Income from discontinued operations available for common unitholders	—			0.67			0.08			1.46
Net income available for common unitholders	$	0.89		$	1.04		$	1.51		$	2.65
Earnings per common unit - diluted:
Income from continuing operations available for common unitholders	$	0.89		$	0.37		$	1.43		$	1.19
Income from discontinued operations available for common unitholders	—			0.67			0.08			1.46
Net income available for common unitholders	$	0.89		$	1.04		$	1.51		$	2.65
Distributions declared per common unit	$	0.7300		$	0.6950		$	2.1900		$	2.0850

See accompanying notes to condensed consolidated financial statements.

9

Mid-America Apartments, L.P.

Condensed Consolidated Statements of Comprehensive Income

Three and nine months ended September 30, 2014 and 2013

(Unaudited)

(Dollars in thousands)

	Three months ended September 30,						Nine months ended September 30,
	2014			2013			2014			2013
Net income available for Mid-America Apartments, L.P. common unitholders	$	70,719		$	46,075		$	119,819		$	117,368
Other comprehensive income:
Unrealized (losses) gains from the effective portion of derivative instruments	(696		)	(1,826		)	(9,096		)	10,096
Reclassification adjustment for net losses included in net income for the effective portion of derivative instruments	2,589			3,621			9,399			12,098
Comprehensive income attributable to Mid-America Apartments, L.P.	$	72,612		$	47,870		$	120,122		$	139,562
See accompanying notes to condensed consolidated financial statements.

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Mid-America Apartments, L.P.

Condensed Consolidated Statements of Cash Flows

Nine months endedSeptember 30, 2014 and 2013

(Unaudited)

(Dollars in thousands)

	Nine months ended September 30,
	2014			2013
Cash flows from operating activities:
Consolidated net income	$	119,819		$	117,368
Adjustments to reconcile net income to net cash provided by operating activities:
Retail revenue accretion	(17		)	(29		)
Depreciation and amortization	233,312			101,923
Stock compensation expense	3,180			1,729
Redeemable units issued	690			535
Amortization of debt premium	(20,121		)	(948		)
Gain from investments in real estate joint ventures	(3,159		)	(161		)
Loss on debt extinguishment	2,586			387
Derivative interest (credit) expense	(2,543		)	827
Settlement of forward swaps	(3,625		)	—
Gain on sale of non-depreciable real estate assets	(535		)	—
Gain on sale of depreciable real estate assets excluded from discontinued operations	(42,254		)	—
Gain on sale of discontinued operations	(5,378		)	(60,585		)
Net casualty loss (gain) and other settlement proceeds	431			(450		)
Changes in assets and liabilities:
Restricted cash	15,062			(390		)
Other assets	(5,016		)	(7,740		)
Accounts payable	(1,665		)	2,409
Accrued expenses and other	31,630			13,200
Security deposits	688			242
Net cash provided by operating activities	323,085			168,317
Cash flows from investing activities:
Purchases of real estate and other assets	(180,272		)	(89,866		)
Normal capital improvements	(71,140		)	(35,451		)
Construction capital and other improvements	(4,456		)	(3,873		)
Renovations to existing real estate assets	(11,950		)	(8,616		)
Development	(40,752		)	(26,129		)
Distributions from real estate joint ventures	15,964			8,311
Contributions to real estate joint ventures	—			(183		)
Proceeds from disposition of real estate assets	241,691			102,204
Funding of escrow for future acquisitions	(30,487		)	(57,380		)
Net cash used in investing activities	(81,402		)	(110,983		)
Cash flows from financing activities:
Advances from general partner	—			17,219
Net change in credit lines	(216,184		)	177,000
Proceeds from notes payable	396,532			—
Principal payments on notes payable	(258,105		)	(8,695		)
Payment of deferred financing costs	(4,156		)	(2,655		)
Repurchase of common units	(456		)	(682		)
Proceeds from issuances of common units	728			25,038
Exercise of unit options	11,916			—
Distributions paid on common units	(173,525		)	(92,388		)
Net cash (used in) provided by financing activities	(243,250		)	114,837
Net (decrease) increase in cash and cash equivalents	(1,567		)	172,171
Cash and cash equivalents, beginning of period	89,333			8,934
Cash and cash equivalents, end of period	$	87,766		$	181,105
Supplemental disclosure of cash flow information:
Interest paid	$	101,252		$	48,534
Income taxes paid	$	1,596		$	803
Supplemental disclosure of noncash investing and financing activities:
Accrued construction in progress	$	6,539		$	4,190
Interest capitalized	$	1,253		$	1,118
Marked-to-market adjustment on derivative instruments	$	6,471		$	21,367
Fair value adjustment on debt assumed	$	2,720		$	704
Loan assumption	$	52,521		$	18,293

See accompanying notes to condensed consolidated financial statements.

11

Mid-America Apartment Communities, Inc. and Mid-America Apartments, L.P.

Notes to Condensed Consolidated Financial Statements

September 30, 2014 and 2013

(Unaudited)

1.           Basis of Presentation and Principles of Consolidation and Significant Accounting Policies

Unless the context otherwise requires, all references to "we," "us," "our," or the "Company" refer collectively to Mid-America Apartment Communities, Inc., together with its consolidated subsidiaries, including Mid-America Apartments, L.P. Unless the context otherwise requires, all references to “MAA” refers only to Mid-America Apartment Communities, Inc., and not any of its consolidated subsidiaries. Unless the context otherwise requires, the references to the “Operating Partnership” or “MAALP” refer to Mid-America Apartments, L.P. together with its consolidated subsidiaries. “Common stock” refers to the common stock of MAA and “shareholders” means the holders of shares of MAA’s common stock. The limited partnership interests of the Operating Partnership are referred to as “OP Units” and the holders of the OP Units are referred to as “unitholders”.

As of September 30, 2014, MAA owned 75,242,266 units (or approximately 94.7%) of the limited partnership interests of the Operating Partnership. MAA conducts substantially all of its business and holds substantially all of its assets through the Operating Partnership, and by virtue of its ownership of the OP Units and being the Operating Partnership's sole general partner, MAA has the ability to control all of the day-to-day operations of the Operating Partnership.

We believe combining the notes to the consolidated financial statements results in the following benefits:

• enhances a readers' understanding of MAA and the Operating Partnership by enabling the reader to view the business as a whole in the same manner that management views and operates the business;

• eliminates duplicative disclosure and provides a more streamlined and readable presentation since a substantial portion of the disclosure applies to both MAA and the Operating Partnership.

• creates time and cost efficiencies through the preparation of one combined report instead of two separate reports.

Management operates MAA and the Operating Partnership as one business. The management of the Company is comprised of individuals who are officers of MAA and employees of the Operating Partnership. We believe it is important to understand the few differences between MAA and the Operating Partnership in the context of how MAA and the Operating Partnership operate as a consolidated company. MAA and the Operating Partnership are structured as an "umbrella partnership REIT," or UPREIT. MAA's interest in the Operating Partnership entitles MAA to share in cash distributions from, and in the profits and losses of, the Operating Partnership in proportion to MAA's percentage interest therein and entitles MAA to vote on substantially all matters requiring a vote of the limited partners. MAA's only material asset is its ownership of limited partner interests in the Operating Partnership; therefore, MAA does not conduct business itself, other than acting as the sole general partner of the Operating Partnership, issuing public equity from time to time and guaranteeing certain debt of the Operating Partnership. The Operating Partnership holds, directly or indirectly, all of our real estate assets. Except for net proceeds from public equity issuances by MAA, which are contributed to the Operating Partnership in exchange for OP Units, the Operating Partnership generates the capital required by our business through the Operating Partnership's operations, direct or indirect incurrence of indebtedness and issuance of partnership units.

The presentation of MAA's shareholders' equity and the Operating Partnership's capital are the principal areas of difference between the consolidated financial statements of MAA and those of the Operating Partnership. MAA's shareholders' equity may include shares of preferred stock, shares of common stock, additional paid-in capital, cumulative earnings, cumulative distributions, noncontrolling interest, preferred units, treasury shares, accumulated other comprehensive income and redeemable common units. The Operating Partnership's capital may include common capital and preferred capital of the general partner (MAA), limited partners' preferred capital, limited partners' noncontrolling interest, accumulated other comprehensive income and redeemable common units. Redeemable common units represent the number of outstanding OP Units as of the date of the applicable balance sheet, valued for conversion at the greater of the closing market price of MAA's common stock or the aggregate value of the individual partners' capital balances. Holders of common units in the Operating Partnership (other than MAA and its entity affiliates) may require the Operating Partnership to redeem their common units, in which case the Operating Partnership may, at its option, pay the redemption price either in cash (in an amount per common unit equal, in general, to the average closing price of MAA’s common stock on the New York Stock Exchange, or “NYSE”, over a specified period of time prior to the redemption date) or by delivering one share of our common stock (subject to adjustment under specified circumstances) for each common unit so redeemed.

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On October 1, 2013, MAA acquired Colonial Properties Trust, or Colonial, when Colonial was merged with and into MAA, with MAA being the surviving entity of the merger, pursuant to an agreement and plan of merger, which is referred to as the parent merger or the merger, and Martha Merger Sub, LP, or OP Merger Sub, a wholly-owned indirect subsidiary of MAALP, merged with and into Colonial Realty Limited Partnership, or Colonial LP, with Colonial LP being the surviving entity of the merger and becoming a wholly-owned indirect subsidiary of MAALP, which is referred to as the partnership merger. Under the terms of the merger agreement, each Colonial common share was converted into the right to receive 0.36 of a newly issued share of MAA common stock. In addition, each limited partner interest in Colonial LP designated as a “Class A Unit” and a “Partnership Unit” under the limited partnership agreement of Colonial LP, which we refer to in this filing as Colonial LP units, issued and outstanding immediately prior to the effectiveness of the partnership merger was converted into common units in MAALP at the 0.36 conversion rate. The net assets and results of operations of Colonial are included in our consolidated financial statements from the closing date, October 1, 2013 going forward.

As of September 30, 2014, we owned and operated 265 apartment communities comprising 81,137 apartments located in 14 states principally through the Operating Partnership, and we also owned an interest in the following unconsolidated real estate joint ventures:

	Percent Owned	Number of Units/Square Feet
Multifamily:
McKinney (1)	25.00%	—
Commercial:
Land Title Building	33.30%	29,971

⁽¹⁾ This joint venture consists of undeveloped land.

As of September 30, 2014, we had two development communities under construction totaling 514 units, with no units completed. Total expected costs for the development projects are $72.9 million, of which $49.2 million has been incurred through September 30, 2014. We expect to complete construction on one of the two projects by the first quarter of 2015 and on the other by the second quarter of 2015. Four of our multifamily properties include retail components with approximately 100,000 square feet of gross leasable area. We also have three wholly owned commercial properties, which we acquired through our merger with Colonial with approximately 287,000 square feet of gross leasable area, excluding tenant owned anchor stores, and one partially owned commercial property with approximately 30,000 square feet of gross leasable area.

Out of Period Adjustment

During the three months ended September 30, 2014, we reviewed our reconciliation of accumulated other comprehensive income, or AOCI. During this review, we noted that balances attributable to certain off-market interest rate swaps had accumulated in AOCI. As a result of this review, in the current quarter we recorded a $2.3 million non-cash adjustment to interest expense related to certain off-market derivative contracts acquired with the merger. This represents a cumulative adjustment for the one year period ended September 30, 2014 required by Accounting Standards Codification, or ASC, 815 to properly reflect the AOCI related to these off-market derivative contracts. The impact of the misstatement caused Net income available for MAA common shareholders to be understated by approximately $0.8 million, or $0.01 per diluted share for the year ended December 31, 2013. Total MAA shareholders' equity would not be affected by this adjustment. Because we believe the impact to Net income available for MAA common shareholders, EPS, and Total MAA shareholders' equity would not impact the readers of these financial statements, we deemed the out of period portion of this adjustment to be immaterial to the current period and all periods presented.

Reclassifications

In order to present comparative financial statements, certain reclassifications have been made. We previously reported approximately $9.5 million of cash proceeds from stock option exercises within Cash flows from operating activities for the six months ended June 30, 2014. This line has been reclassified to Cash flows from financing activities for the nine months ended September 30, 2014. In addition, we previously reported $6.2 million of Gain on sale of depreciable real-estate assets excluded from discontinued operations and $0.5 million of Gain on sale of non-depreciable real-estate assets as separate items below Discontinued operations on our Statement of Operations for the six months ended June 30, 2014. These two lines have been reclassified into Income from continuing operations for all periods presented as allowed under Accounting Standards Update, or ASU, 2014-08. The reclassifications had no effect on Net income available for MAA common shareholders.

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Basis of Presentation and Principles of Consolidation

The accompanying condensed consolidated financial statements have been prepared by our management in accordance with United States generally accepted accounting principles, or GAAP, and applicable rules and regulations of the Securities and Exchange Commission, or the SEC. The consolidated financial statements of MAA presented herein include the accounts of MAA, the Operating Partnership, and all other subsidiaries in which MAA has a controlling financial interest. MAA owns approximately 95% to 100% of all consolidated subsidiaries. The consolidated financial statements of MAALP presented herein include the accounts of MAALP and all other subsidiaries in which MAALP has a controlling financial interest. MAALP owns, directly or indirectly, 100% of all consolidated subsidiaries. In our opinion, all adjustments necessary for a fair presentation of the condensed consolidated financial statements have been included, and all such adjustments were of a normal, recurring nature. All significant intercompany accounts and transactions have been eliminated in consolidation.

We invest in entities which may qualify as variable interest entities, or VIE. A VIE is a legal entity in which the equity investors lack sufficient equity at risk for the entity to finance its activities without additional subordinated financial support or, as a group, the holders of the equity investment at risk lack the power to direct the activities of a legal entity as well as the obligation to absorb its expected losses or the right to receive its expected residual returns. We consolidate all VIEs for which we are the primary beneficiary and use the equity method to account for investments that qualify as VIEs but for which we are not the primary beneficiary. In determining whether we are the primary beneficiary of a VIE, we consider qualitative and quantitative factors, including but not limited to, those activities that most significantly impact the VIE's economic performance and which party controls such activities.

We use the equity method of accounting for our investments in entities for which we exercise significant influence, but do not have the ability to exercise control. These entities are not variable interest entities. The factors considered in determining that we do not have the ability to exercise control include ownership of voting interests and participatory rights of investors.

2.     Business Combinations

Merger of MAA and Colonial

On October 1, 2013, MAA completed its merger with Colonial. As part of the merger, we acquired 115 wholly-owned apartment communities encompassing 34,370 units principally located in the Southeast and Southwest regions of the United States. In addition to the apartment communities, we also acquired four commercial properties totaling approximately 806,000 square feet. The additions have caused us to nearly double in size as a result of the merger. The net assets and results of operations of Colonial are included in our consolidated financial statements from the closing date, October 1, 2013, going forward.

The total purchase price of approximately $2.2 billion was determined based on the number of Colonial shares and Colonial OP Units outstanding as of October 1, 2013. In all cases in which MAA’s stock price was a determining factor in arriving at final consideration for the merger, the stock price used to determine the purchase price was the opening price of MAA’s common stock on October 1, 2013 ($62.56 per share). The total purchase price includes $7.3 million of other consideration, a majority of which relates to assumed stock compensation plans. As a result of the merger, we issued approximately 31.9 million shares of MAA common stock and approximately 2.6 million OP units.

The acquisition has been accounted for using the acquisition method of accounting in accordance with ASC 805, Business Combinations, which requires, among other things, that the assets acquired and liabilities assumed be recognized at their acquisition date fair values.

For larger, portfolio style acquisitions, like the merger, management engages a third party valuation specialist to assist with the fair value assessment, which includes an allocation of the purchase price. Similar to management's methods, the third party generally uses cash flow analysis as well as an income approach and a market approach to determine the fair value of assets acquired. The third party uses stabilized NOI and a market specific capitalization and discount rates. Management reviews the inputs used by the third party specialist as well as the allocation of the purchase price provided by the third party to ensure reasonableness and that the procedures are performed in accordance with management's policy. The allocation of the purchase price is based on management’s assessment, which may differ as more information becomes available. Subsequent adjustments made to the purchase price allocation, if any, are made within the allocation period, which typically does not exceed one year.

The allocation of the purchase price described above requires a significant amount of judgment and represents the Company's best estimate of the fair value as of the acquisition date. The following final purchase price allocation was based on our

14

valuation as well as estimates and assumptions of the acquisition date fair value of the tangible and intangible assets acquired and liabilities assumed.

The following table summarizes the final purchase price allocation (in thousands):

Land	$	469,396
Buildings and improvements	3,080,858
Furniture, fixtures and equipment	96,377
Development and capital improvements in progress	113,368
Undeveloped land	58,400
Properties held for sale	33,300
Lease intangible assets	57,946
Cash and cash equivalents	63,454
Restricted cash	6,825
Deferred costs and other assets, excluding lease intangible assets	86,141
Total assets acquired	4,066,065
Notes payable	(1,759,550)
Fair market value of interest rate swaps	(14,961)
Accounts payable, accrued expenses, and other liabilities	(128,678)
Total liabilities assumed, including debt	(1,903,189		)
Total purchase price	$	2,162,876

We incurred merger and integration related expenses of $10.3 million for the nine months ended September 30, 2014. These amounts were expensed as incurred and are included in the Consolidated Statement of Operations in the items titled Merger related expenses, primarily consisting of severance, legal, and professional costs and Integration related expenses, primarily related to temporary systems, staffing, and facilities costs.

The allocation of fair values of the assets acquired and liabilities assumed has changed by an immaterial amount from the allocation reported in Item 8. Financial Statements and Supplementary Data - Notes to Consolidated Financial Statements, Note 2 of our Annual Report on Form 10-K for the year ended December 31, 2013, filed with the SEC on February 21, 2014. The changes were based on information concerning the subject assets and liabilities that was not yet known at the time of the 10-K filing. These adjustments had no material impact on the purchase price allocation, the consolidated balance sheet or the results of operations.

3.    Earnings per Common Share of MAA

Basic earnings per share is computed by dividing net income attributable to common shareholders by the weighted average number of shares outstanding during the period.  All outstanding unvested restricted share awards contain rights to non-forfeitable dividends and participate in undistributed earnings with common shareholders and, accordingly, are considered participating securities that are included in the two-class method of computing basic earnings per share. Both the unvested restricted shares and other potentially dilutive common shares, and the related impact to earnings, are considered when calculating earnings per share on a diluted basis with our diluted earnings per share being the more dilutive of the treasury stock or two-class methods.  Operating Partnership units are included in dilutive earnings per share calculations when they are dilutive to earnings per share. For the three and nine months ended September 30, 2014 and 2013, MAA's basic earnings per share is computed using the two-class method, and our diluted earnings per share is computed using the more dilutive of the treasury stock method or two-class method:

15

(dollars and shares in thousands, except per share amounts)	Three months ended September 30,								Nine months ended September 30,
	2014				2013				2014				2013
Shares Outstanding
Weighted average common shares - basic	75,058				42,702				74,937				42,583
Weighted average partnership units outstanding	—			(1)	—			(1)	—			(1)	1,709
Effect of dilutive securities	—			(1)	—			(1)	—			(1)	53
Weighted average common shares - diluted	75,058				42,702				74,937				44,345
Calculation of Earnings per Share - basic
Income from continuing operations	$	70,331			$	16,297			$	113,088			$	52,734
Income from continuing operations attributable to noncontrolling interests	(3,722		)		(632		)		(6,005		)		(1,973		)
Income from continuing operations allocated to unvested restricted shares	(130		)		(14		)		(209		)		(46		)
Income from continuing operations available for common shareholders, adjusted	$	66,479			$	15,651			$	106,874			$	50,715
Income from discontinued operations	$	388			$	29,759			$	6,731			$	76,355
Income from discontinued operations attributable to noncontrolling interest	(21		)		(1,140		)		(359		)		(2,563		)
Income from discontinued operations allocated to unvested restricted shares	(1		)		(25		)		(12		)		(67		)
Income from discontinued operations available for common shareholders, adjusted	$	366			$	28,594			$	6,360			$	73,725
Weighted average common shares - basic	75,058				42,702				74,937				42,583
Earnings per share - basic	$	0.89			$	1.04			$	1.51			$	2.92
Calculation of Earnings per Share - diluted
Income from continuing operations	$	70,331			$	16,297			$	113,088			$	52,734
Income from continuing operations attributable to noncontrolling interests	(3,725		)	(1)	(632		)	(1)	(6,005		)	(1)	—
Income from continuing operations allocated to unvested restricted shares	(130		)	(1)	(14		)	(1)	(209		)	(1)	—
Income from continuing operations available for common shareholders, adjusted	$	66,476			$	15,651			$	106,874			$	52,734
Income from discontinued operations	$	388			$	29,759			$	6,731			$	76,355
Income from discontinued operations attributable to noncontrolling interest	(21		)	(1)	(1,140		)	(1)	(357		)	(1)	—
Income from discontinued operations allocated to unvested restricted shares	(1		)	(1)	(25		)	(1)	(12		)	(1)	—
Income from discontinued operations available for common shareholders, adjusted	$	366			$	28,594			$	6,362			$	76,355
Weighted average common shares - diluted	75,058				42,702				74,937				44,345
Earnings per share - diluted	$	0.89			$	1.04			$	1.51			$	2.91

⁽¹⁾ Operating partnership units, other dilutive securities, and the related income with each are not included in the diluted earnings per share calculations as they were not dilutive.

16

4.    Earnings per OP Unit of MAALP

Basic earnings per OP Unit is computed by dividing net income available for common unitholders by the weighted average number of units outstanding during the period. All outstanding unvested restricted share awards contain rights to non-forfeitable dividends and participate in undistributed earnings with common unitholders and, accordingly, are considered participating securities that are included in the two-class method of computing basic earnings per OP unit. Diluted earnings per OP Unit reflects the potential dilution that could occur if securities or other contracts to issue OP Units were exercised or converted into OP Units. A reconciliation of the numerators and denominators of the basic and diluted earnings per unit computations for the three and nine months ended September 30, 2014 and 2013 is presented below:

(dollars and units in thousands, except per unit amounts)	Three months ended September 30,								Nine months ended September 30,
	2014				2013				2014				2013
Units Outstanding
Weighted average common units - basic	79,263				44,408				79,148				44,293
Effect of dilutive securities	—			(1)	—			(1)	—			(1)	53
Weighted average common units - diluted	79,263				44,408				79,148				44,346
Calculation of Earnings per Unit - basic
Income from continuing operations	$	70,331			$	16,297			$	113,088			$	52,734
Income from continuing operations allocated to unvested restricted shares	(130		)		(14		)		(209		)		(46		)
Income from continuing operations available for common unitholders, adjusted	$	70,201			$	16,283			$	112,879			$	52,688
Income from discontinued operations	$	388			$	29,778			$	6,731			$	64,634
Income from discontinued operations allocated to unvested restricted shares	(1		)		(25		)		(12		)		(56		)
Income from discontinued operations available for common unitholders, adjusted	$	387			$	29,753			$	6,719			$	64,578
Weighted average common units - basic	79,263				44,408				79,148				44,293
Earnings per unit - basic:	$	0.89			$	1.04			$	1.51			$	2.65
Calculation of Earnings per Unit - diluted
Income from continuing operations	$	70,331			$	16,297			$	113,088			$	52,734
Income from continuing operations allocated to unvested restricted shares	(130		)	(1)	(14		)	(1)	(209		)	(1)	—
Income from continuing operations available for common unitholders, adjusted	$	70,201			$	16,283			$	112,879			$	52,734
Income from discontinued operations	$	388			$	29,778			$	6,731			$	64,634
Income from discontinued operations allocated to unvested restricted shares	(1		)	(1)	(25		)	(1)	(12		)	(1)	—
Income from discontinued operations available for common unitholders, adjusted	$	387			$	29,753			$	6,719			$	64,634
Weighted average common units - diluted	79,263				44,408				79,148				44,346
Earnings per unit - diluted:	$	0.89			$	1.04			$	1.51			$	2.65

⁽¹⁾ Dilutive securities and the related income are not included in the diluted earnings per unit calculations as they were not dilutive.

17

5.    MAA Equity

Total equity and its components for the nine-month periods ended September 30, 2014 and 2013 were as follows (dollars in thousands, except per share and per unit data):

	Mid-America Apartment Communities, Inc. Shareholders
	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, 2013	$	747	$	3,599,549		$	(653,593	)	$	108	$	166,726		$	3,113,537
Net income						113,455					6,364			119,819
Other comprehensive income - derivative instruments (cash flow hedges)									288		15			303
Issuance and registration of common shares	2		726											728
Shares repurchased and retired	—		(456		)									(456		)
Exercise of stock options	3		11,913											11,916
Shares issued in exchange for units	—		992								(992		)	—
Shares issued in exchange from redeemable stock			998											998
Redeemable stock fair market value						(286		)						(286		)
Adjustment for noncontrolling interest ownership in operating partnership			(55		)						55			—
Amortization of unearned compensation			3,180											3,180
Dividends on common stock ($2.19 per share)						(164,598		)			—			(164,598		)
Dividends on noncontrolling interest units ($2.19 per unit)											(9,209		)	(9,209		)
EQUITY BALANCE SEPTEMBER 30, 2014	$	752	$	3,616,847		$	(705,022	)	$	396	$	162,959		$	3,075,932

	Mid-America Apartment Communities, Inc. Shareholders
	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, 2012	$	422	$	1,542,999		$	(603,315	)	$	(26,054	)	$	31,058		$	945,110
Net income						124,553						4,536			129,089
Other comprehensive income - derivative instruments (cash flow hedges)									21,455			739			22,194
Issuance and registration of common shares	4		25,034												25,038
Shares repurchased and retired	—		(682		)										(682		)
Shares issued in exchange for units	1		549									(550		)	—
Redeemable stock fair market value						209									209
Adjustment for noncontrolling interest ownership in operating partnership			(7,418		)							7,418			—
Amortization of unearned compensation			1,729												1,729
Dividends on common stock ($2.085 per share)						(89,109		)				—			(89,109		)
Dividends on noncontrolling interest units ($2.085 per unit)												(3,557		)	(3,557		)
EQUITY BALANCE SEPTEMBER 30, 2013	$	427	$	1,562,211		$	(567,662	)	$	(4,599	)	$	39,644		$	1,030,021

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6.    MAALP Capital

Total capital and its components for the nine-month periods ended September 30, 2014 and 2013 were as follows (dollars in thousands, except per unit data):

	Mid-America Apartments, L.P. Unitholders
	Limited Partner			General Partner			Accumulated Other Comprehensive Income (Loss)		Total Partnership Capital
CAPITAL BALANCE DECEMBER 31, 2013	$	166,746		$	2,946,598		$	174	$	3,113,518
Net income	6,364			113,455					119,819
Other comprehensive income - derivative instruments (cash flow hedges)							303		303
Issuance of units	—			728					728
Units repurchased and retired				(456		)			(456		)
Exercise of unit options				11,916					11,916
General partner units issued in exchange for limited partner units	(992		)	992					—
Units issued in exchange from redeemable units				998					998
Redeemable units fair market value adjustment				(286		)			(286		)
Adjustment for limited partners' capital at redemption value	28			(28		)			—
Amortization of unearned compensation				3,180					3,180
Distributions ($2.19 per unit)	(9,209		)	(164,598		)			(173,807		)
CAPITAL BALANCE SEPTEMBER 30, 2014	$	162,937		$	2,912,499		$	477	$	3,075,913

	Mid-America Apartments, L.P. Unitholders
	Limited Partner			General Partner			Accumulated Other Comprehensive Income (Loss)			Total Partnership Capital
CAPITAL BALANCE DECEMBER 31, 2012	$	38,154		$	927,734		$	(26,881	)	$	939,007
Net income	4,518			112,850						117,368
Other comprehensive income - derivative instruments (cash flow hedges)							22,193			22,193
Issuance of units				25,038						25,038
Units repurchased and retired				(682		)				(682		)
General partner units issued in exchange for limited partner units	(550		)	550						—
Redeemable units fair market value adjustment				209						209
Adjustment for limited partners capital at redemption value	1,218			16,597						17,815
Amortization of unearned compensation				1,729						1,729
Distributions ($2.085 per unit)	(3,557		)	(89,109		)				(92,666		)
CAPITAL BALANCE SEPTEMBER 30, 2013	$	39,783		$	994,916		$	(4,688	)	$	1,030,011

7.           Borrowings

On September 30, 2014 and December 31, 2013, we had total indebtedness of approximately $3.43 billion and $3.47 billion, respectively. Our indebtedness as of September 30, 2014 consisted of both conventional and tax exempt debt. Borrowings were made through individual property mortgages as well as company-wide credit facilities and notes. We utilize both secured and unsecured debt.

On August 7, 2013, our Operating Partnership entered into a $500 million unsecured revolving credit facility agreement with KeyBank National Association and thirteen other banks. This agreement amends our Operating Partnership's previous unsecured credit facility with KeyBank. Interest is paid using an investment grade pricing grid using LIBOR plus a spread of 0.90% to 1.70%, currently bearing interest at 1.10%. As of September 30, 2014, we had zero borrowings under this facility.

On October 16, 2013, MAALP issued $350 million in aggregate principal amount of notes, maturing on October 15, 2023 with an interest rate of 4.3% per annum (the "2023 Notes"). The purchase price paid by the initial purchasers was 99.047% of the principal amount. The 2023 Notes are general unsecured senior obligations of MAALP and rank equally in right of payment

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with all other senior unsecured indebtedness of MAALP. Interest on the 2023 Notes is payable on April 15 and October 15 of each year, beginning on April 15, 2014. The net proceeds from the offering after deducting the original issue discount of approximately $3.3 million and underwriting commissions and expenses of approximately $2.3 million was approximately $344.4 million. The 2023 Notes have been reflected net of discount in the consolidated balance sheet. The Company also entered into three forward swaps related to the bond financing totaling $150 million, which resulted in a total effective interest rate of 4.15%.

On December 13, 2013, MAALP completed a series of exchange offers (the “Exchange Offers”) pursuant to which it exchanged $154.2 million aggregate principal amount of 6.25% Senior Notes due 2014, $169.2 million aggregate principal amount of 5.50% Senior Notes due 2015 and $68.1 million aggregate principal amount of 6.05% Senior Notes due 2016 (collectively, the “Existing Notes”) issued by Colonial Realty Limited Partnership, a Delaware limited partnership and wholly owned subsidiary of MAALP, for $154.2 million aggregate principal amount of MAALP’s new 6.25% Senior Notes due 2014 (the “2014 Notes”), $169.1 million aggregate principal amount of MAALP’s new 5.50% Senior Notes due 2015 (the “2015 Notes”) and $68.1 million aggregate principal amount of MAALP’s new 6.05% Senior Notes due 2016 (the “2016 Notes” and together with the 2014 Notes and the 2015 Notes, the “Exchange Notes”), plus approximately $975,000 in cash.

The Exchange Notes are senior unsecured obligations of MAALP and will rank equally in right of payment with all of MAALP’s other existing and future senior unsecured indebtedness. Interest on the 2014 Notes will accrue from, and including, December 15, 2013 and was payable on June 15, 2014, which was the maturity date for the 2014 Notes. Interest on the 2015 Notes will accrue from, and including, October 1, 2013 and will be payable semiannually on April 1 and October 1 of each year, beginning on April 1, 2014. Interest on the 2016 Notes accrued from, and including, September 1, 2013 and was paid on March 1, 2014. Interest payments will be payable semiannually on March 1 and September 1 of each year, beginning on March 1, 2014. In certain circumstances described below MAALP may be required to pay additional interest on the Exchange Notes.

All of the Existing Notes tendered into the Exchange Offers were cancelled in connection with the settlement of the Exchange Offers. In connection with the issuance and sale of the Exchange Notes, MAALP also entered into three separate registration rights agreements, each dated as of December 13, 2013, and each with J.P. Morgan Securities LLC, the dealer manager in the Exchange Offers (the “Registration Rights Agreements”). Under the Registration Rights Agreements, MAALP agreed to use commercially reasonable efforts to complete exchange offers registered under the Securities Act pursuant to which MAALP will offer to issue new exchange notes containing terms substantially similar in all material respects to the Exchange Notes (except that the exchange notes will not contain terms with respect to transfer restrictions or any increase in annual interest rate) in exchange for the Exchange Notes. MAALP also agreed, if it determines that a registered exchange offer is not available or specified other circumstances occur, to use commercially reasonable efforts to file and have become effective a shelf registration statement relating to resales of the Exchange Notes. MAALP would be obligated to pay additional interest of up to 0.50% per annum on the Exchange Notes if it had not completed the exchange offers within 270 days after the issue date of the Exchange Notes and in other specified circumstances. We completed the exchange within the 270 day window and did not incur the additional interest.

On June 10, 2014, MAALP issued $400 million in aggregate principal amount of notes, maturing on June 15, 2024 with an interest rate of 3.75% per annum (the "2024 Notes"). The purchase price paid by the initial purchasers was 98.873% of the principal amount. The 2024 Notes are general unsecured senior obligations of MAALP and rank equally in right of payment with all other senior unsecured indebtedness of MAALP. Interest on the 2024 Notes is payable on June 15 and December 15 of each year, beginning on December 15, 2014. The net proceeds from the offering after deducting the original issue discount of approximately $4.5 million and underwriting commissions and expenses of approximately $2.6 million was approximately $392.9 million. The 2024 Notes have been reflected net of discount in the consolidated balance sheet. The Company also entered into five forward swaps related to the bond financing totaling $250 million, which resulted in a total effective interest rate of 3.98%.

The Indenture under which the 2023 and 2024 notes were issued contains certain covenants that, among other things, limit the ability of MAALP and its subsidiaries to incur secured and unsecured indebtedness if not in pro forma compliance with the following negative covenants: (1) total leverage not to exceed 60% of adjusted total assets, (2) secured leverage not to exceed 40% of adjusted total assets and (3) a fixed charge coverage ratio of at least 1.50 to 1. In addition, MAALP is required to maintain at all times unencumbered consolidated total assets of not less than 150% of the aggregate principal amount of its outstanding unsecured debt. At September 30, 2014, MAALP was in compliance with each of these financial covenants.

On July 10, 2014, we paid off a $27.5 million mortgage during our sale of the Greenbrook apartments. We recorded a $2.6 million loss on debt extinguishment due to paying off the mortgage prior to maturity.

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We utilize interest rate swaps and interest rate caps to help manage our current and future interest rate risk and entered into 9 interest rate swaps and 6 interest rate caps as of September 30, 2014, representing notional amounts totaling $625.0 million and $165.0 million, respectively. We also held 14 non-designated interest rate caps with notional amounts totaling $90.3 million as of September 30, 2014.

The following table summarizes our outstanding debt structure as of September 30, 2014 (dollars in thousands):

	Borrowed Balance		Effective Rate		Average Contract Maturity
Fixed Rate Secured Debt
Individual property mortgages	$	1,090,496	4.0	%	5/5/2019
FNMA conventional credit facilities	50,000		4.7	%	3/31/2017
Credit facility balances with:
LIBOR-based interest rate swaps	75,000		4.8	%	3/31/2015
Total fixed rate secured debt	$	1,215,496	4.1	%	1/1/2019
Variable Rate Secured Debt (1)
FNMA conventional credit facilities	$	221,585	0.7	%	1/27/2017
FNMA tax-free credit facilities	90,415		0.9	%	7/23/2031
Freddie Mac mortgages	27,096		3.4	%	10/31/2015
Total variable rate secured debt	$	339,096	1.0	%	11/2/2020
Total Secured Debt	$	1,554,592	3.4	%	5/27/2019
Unsecured Debt
Term loans fixed with swaps	$	550,000	3.1	%	11/10/2017
Fixed rate senior bonds	1,325,422		4.5	%	12/3/2021
Total Unsecured Debt	$	1,875,422	4.0	%	9/24/2020
Total Outstanding Debt	$	3,430,014	3.7	%	11/14/2019

⁽¹⁾ Includes capped balances.

8.           Derivatives and Hedging Activities

Risk Management Objective of Using Derivatives

We are exposed to certain risks arising from both our business operations and economic conditions. We principally manage our exposures to a wide variety of business and operational risks through management of our core business activities. We manage economic risks, including interest rate, liquidity and credit risk, primarily by managing the amount, sources and duration of our debt funding and the use of derivative financial instruments. Specifically, we enter into derivative financial instruments to manage exposures that arise from business activities that result in the payment of future contractual and forecasted cash amounts, principally related to our borrowings, the value of which are determined by changing interest rates, related cash flows and other factors.

Cash Flow Hedges of Interest Rate Risk

Our objectives in using interest rate derivatives are to add stability to interest expense and to manage our exposure to interest rate movements. To accomplish this objective, we use interest rate swaps and interest rate caps as part of our interest rate risk management strategy. Interest rate swaps designated as cash flow hedges involve the receipt of variable amounts from a counterparty in exchange for us making fixed-rate payments over the life of the agreements without exchange of the underlying notional amount. Interest rate caps designated as cash flow hedges involve the receipt of variable amounts from a counterparty if interest rates rise above the strike rate on the contract in exchange for an up front premium.

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The effective portion of changes in the fair value of derivatives designated and that qualify as cash flow hedges is recorded in accumulated other comprehensive income and is subsequently reclassified into earnings in the period that the hedged forecasted transaction affects earnings. During the three and nine months ended September 30, 2014 and 2013, such derivatives were used to hedge the variable cash flows associated with existing variable-rate debt and forecasted issuances of fixed-rate debt.  The ineffective portion of the change in fair value of the derivatives is recognized directly in earnings. During the three months ended September 30, 2014 and 2013, we recorded ineffectiveness of $25,000 (increase to interest expense) and $1,000 (increase to interest expense), respectively, and during the nine months ended September 30, 2014 and 2013, we recorded ineffectiveness of $88,000 (increase to interest expense) and $26,000 (decrease to interest expense), respectively, mainly attributable to a mismatch in the underlying indices of the derivatives and the hedged interest payments made on our variable-rate debt and due to the designation of acquired interest rate swaps with a non-zero fair value at inception.

Amounts reported in accumulated other comprehensive income related to derivatives designated as qualifying cash flow hedges will be reclassified to interest expense as interest payments are made on our variable-rate or fixed-rate debt. During the next 12 months, we estimate that an additional $7.5 million will be reclassified to earnings as an increase to interest expense, which primarily represents the difference between our fixed interest rate swap payments and the projected variable interest rate swap payments.

As of September 30, 2014, we had the following outstanding interest rate derivatives that were designated as cash flow hedges of interest rate risk:

Interest Rate Derivative	Number of Instruments	Notional
Interest Rate Caps	6	$	165,000,000
Interest Rate Swaps	9	$	625,000,000

Non-Designated Hedges

Derivatives not designated as hedges are not speculative and are used to manage the Company's exposure to interest rate movements and other identified risks but do not meet the strict hedge accounting requirements of FASB ASC 815, Derivatives and Hedging. Changes in the fair value of derivatives not designated in hedging relationships are recorded directly in earnings and resulted in a loss of $10,000 for the three months ended September 30, 2014 and a loss of $138,000 for the nine months ended September 30, 2014. We recorded a loss of $5,000 for the three months ended September 30, 2013 and a loss of $8,000 for the nine months ended September 30, 2013.

As of September 30, 2014, we had the following outstanding interest rate derivatives that were not designated as hedges:

Interest Rate Derivative	Number of Instruments	Notional
Interest rate caps	14	$	90,326,031

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Tabular Disclosure of Fair Values of Derivative Instruments on the Balance Sheet

The table below presents the fair value of our derivative financial instruments as well as their classification on the Consolidated Balance Sheet as of September 30, 2014 and December 31, 2013, respectively.

Fair Values of Derivative Instruments on the Consolidated Balance Sheet as of September 30, 2014 and

December 31, 2013 (dollars in thousands)

	Asset Derivatives					Liability Derivatives
		September 30, 2014		December 31, 2013			September 30, 2014		December 31, 2013
Derivatives designated as hedging instruments	Balance Sheet Location	Fair Value		Fair Value		Balance Sheet Location	Fair Value		Fair Value
Interest rate contracts	Other assets	$	117	$	396	Fair market value of interest rate swaps	$	13,132	$	20,015
Total derivatives designated as hedging instruments		$	117	$	396		$	13,132	$	20,015
Derivatives not designated as hedging instruments
Interest rate contracts	Other assets	$	14	$	49		$	—	$	—
Total derivatives not designated as hedging instruments		$	14	$	49		$	—	$	—

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Tabular Disclosure of the Effect of Derivative Instruments on the Statements of Operations

The table below presents the effect of our derivative financial instruments on the Consolidated Statements of Operations for the three and nine months ended September 30, 2014 and 2013, respectively.

Effect of Derivative Instruments on the Consolidated Statements of Operations for the

Three and nine months ended September 30, 2014 and 2013 (dollars in thousands)

Derivatives in Cash Flow Hedging Relationships	Amount of  Gain or (Loss) Recognized in  OCI on Derivative  (Effective Portion)						Location of Gain or (Loss) Reclassified  from Accumulated OCI into Income (Effective Portion)	Amount of   Gain or (Loss) Reclassified from Accumulated  OCI into Income  (Effective Portion)						Location of Gain or (Loss) Recognized in Income on Derivative (Ineffective Portion and Amount Excluded from Effectiveness Testing)	Amount of Gain or (Loss) Recognized in Income on Derivative (Ineffective Portion and Amount Excluded from Effectiveness Testing)
Three months ended September 30,	2014			2013				2014			2013				2014			2013
Interest rate contracts	$	(696	)	$	(1,826	)	Interest expense	$	(2,589	)	$	(3,621	)	Interest expense	$	(25	)	$	(1	)
Total derivatives in cash flow hedging relationships	$	(696	)	$	(1,826	)		$	(2,589	)	$	(3,621	)		$	(25	)	$	(1	)
Nine months ended September 30,
Interest rate contracts	$	(9,096	)	$	10,096		Interest expense	$	(9,399	)	$	(12,098	)	Interest expense	$	(88	)	$	26
Total derivatives in cash flow hedging relationships	$	(9,096	)	$	10,096			$	(9,399	)	$	(12,098	)		$	(88	)	$	26
Derivatives Not Designated as Hedging Instruments
Three months ended September 30,														Location of Gain or (Loss) Recognized in Income	2014			2013
Interest rate contracts														Interest expense	$	(10	)	$	(5	)
Total															$	(10	)	$	(5	)
Nine months ended September 30,
Interest rate contracts														Interest expense	$	(138	)	$	(8	)
Total															$	(138	)	$	(8	)

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Credit-Risk-Related Contingent Features

As of September 30, 2014, derivatives that were in a net liability position and subject to credit-risk-related contingent features had a termination value of $14.3 million, which includes accrued interest but excludes any adjustment for nonperformance risk. These derivatives had a fair value, gross of asset positions, of $13.1 million at September 30, 2014.

Certain of our derivative contracts contain a provision where if we default on any of our indebtedness, including default where repayment of the indebtedness has not been accelerated by the lender, then we could also be declared in default on our derivative obligations. As of September 30, 2014, we had not breached the provisions of these agreements.  If we had breached these provisions, we could have been required to settle our obligations under the agreements at their termination value of $1.0 million.

Certain of our derivative contracts contain a provision where we could be declared in default on our derivative obligations if repayment of the underlying indebtedness is accelerated by the lender due to our default on the indebtedness. As of September 30, 2014, we had not breached the provisions of these agreements. If we had breached theses provisions, we could have been required to settle our obligations under the agreements at the termination value of $12.5 million.

Certain of our derivative contracts are credit enhanced by FNMA.  These derivative contracts require that our credit enhancing party maintain credit ratings above a certain level.  If our credit support providers were downgraded below Baa1 by Moody’s or BBB+ by Standard & Poor’s, or S&P, we may be required to either post 100 percent collateral or settle the obligations at their termination value of $1.7 million as of September 30, 2014. FNMA is currently rated Aaa by Moody’s and AA+ by S&P, and therefore, the provisions of this agreement have not been breached, and no collateral has been posted related to these agreements as of September 30, 2014.

Although our derivative contracts are subject to master netting arrangements, which serve as credit mitigants to both us and our counterparties under certain situations, we do not net our derivative fair values or any existing rights or obligations to cash collateral on the Consolidated Balance Sheet.

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The table below presents a gross presentation, the effects of offsetting, and a net presentation of our derivatives as of September 30, 2014 and December 31, 2013. The net amounts of derivative assets or liabilities can be reconciled to the Tabular Disclosure of Fair Values of Derivative Instruments above, which also provides the location that derivative assets and liabilities are presented on the Consolidated Balance Sheet (dollars in thousands):

Offsetting of Derivative Assets
As of September 30, 2014
							Gross Amounts Not Offset in the Statement of Financial Position
	Gross Amounts of Recognized Assets		Gross Amounts Offset in the Statement of Financial Position		Net Amounts of Assets presented in the Statement of Financial Position		Financial Instruments		Cash Collateral Received		Net Amount
Derivatives	$	131	$	—	$	131	$	—	$	—	$	131
Offsetting of Derivative Liabilities
As of September 30, 2014
							Gross Amounts Not Offset in the Statement of Financial Position
	Gross Amounts of Recognized Liabilities		Gross Amounts Offset in the Statement of Financial Position		Net Amounts of Liabilities presented in the Statement of Financial Position		Financial Instruments		Cash Collateral Posted		Net Amount
Derivatives	$	13,132	$	—	$	13,132	$	—	$	—	$	13,132
Offsetting of Derivative Assets
As of December 31, 2013
							Gross Amounts Not Offset in the Statement of Financial Position
	Gross Amounts of Recognized Assets		Gross Amounts Offset in the Statement of Financial Position		Net Amounts of Assets presented in the Statement of Financial Position		Financial Instruments		Cash Collateral Received		Net Amount
Derivatives	$	444	$	—	$	444	$	—	$	—	$	444
Offsetting of Derivative Liabilities
As of December 31, 2013
							Gross Amounts Not Offset in the Statement of Financial Position
	Gross Amounts of Recognized Liabilities		Gross Amounts Offset in the Statement of Financial Position		Net Amounts of Liabilities presented in the Statement of Financial Position		Financial Instruments		Cash Collateral Posted		Net Amount
Derivatives	$	20,015	$	—	$	20,015	$	—	$	—	$	20,015

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Other Comprehensive Income

Our other comprehensive income consists entirely of gains and losses attributable to the effective portion of our cash flow hedges. The chart below shows the change in the balance for the nine months ended September 30, 2014 and 2013:

Changes in Accumulated Other Comprehensive Income by Component
	Affected Line Item in the Consolidated Statements Of Operations	Gains and Losses on Cash Flow Hedges
		for the nine months ended September 30,
		2014			2013
Beginning balance		$	108		$	(26,054	)
Other comprehensive (loss) income before reclassifications		(9,096		)	10,096
Amounts reclassified from accumulated other comprehensive income (interest rate contracts)	Interest expense	9,399			12,098
Net current-period other comprehensive loss attributable to noncontrolling interest		(15		)	(739		)
Net current-period other comprehensive income attributable to MAA		288			21,455
Ending balance		$	396		$	(4,599	)

See also discussions in Item 1. Financial Statements – Notes to Consolidated Financial Statements, Note 9.

9.           Fair Value Disclosure of Financial Instruments

Cash and cash equivalents, restricted cash, accounts payable, accrued expenses and other liabilities and security deposits are carried at amounts that reasonably approximate their fair value due to their short term nature.

We apply Financial Accounting Standards Board, or FASB, ASC 820 Fair Value Measurements and Disclosures, or ASC 820.ASC 820 defines fair value, establishes a framework for measuring fair value, and expands disclosures about fair value measurements. ASC 820 applies to reported balances that are required or permitted to be measured at fair value under existing accounting pronouncements; accordingly, the standard does not require any new fair value measurements of reported balances.

ASC 820 emphasizes that fair value is a market-based measurement, not an entity-specific measurement.  Therefore, a fair value measurement should be determined based on the assumptions that market participants would use in pricing the asset or liability.  As a basis for considering market participant assumptions in fair value measurements, ASC 820 establishes a fair value hierarchy that distinguishes between market participant assumptions based on market data obtained from sources independent of the reporting entity (observable inputs that are classified within Levels 1 and 2 of the hierarchy) and the reporting entity’s own assumptions about market participant assumptions (unobservable inputs classified within Level 3 of the hierarchy).

Level 1 inputs utilize quoted prices (unadjusted) in active markets for identical assets or liabilities that we have the ability to access. Level 2 inputs are inputs other than quoted prices included in Level 1 that are observable for the asset or liability, either directly or indirectly. Level 2 inputs may include quoted prices for similar assets and liabilities in active markets, as well as inputs that are observable for the asset or liability (other than quoted prices), such as interest rates, foreign exchange rates, and yield curves that are observable at commonly quoted intervals. Level 3 inputs are unobservable inputs for the asset or liability, which are typically based on an entity’s own assumptions, as there is little, if any, related market activity. In instances where the determination of the fair value measurement is based on inputs from different levels of the fair value hierarchy, the level in the fair value hierarchy within which the entire fair value measurement falls is based on the lowest level input that is significant to the fair value measurement in its entirety. Our assessment of the significance of a particular input to the fair value measurement in its entirety requires judgment, and considers factors specific to the asset or liability.

Fixed rate notes payable at September 30, 2014 and December 31, 2013, totaled $2.46 billion and $2.29 billion, respectively, and had estimated fair values of $2.49 billion and $2.30 billion (excluding prepayment penalties), respectively, as of September 30, 2014 and December 31, 2013. The carrying value of variable rate notes payable (excluding the effect of interest rate swap and cap agreements) at September 30, 2014 and December 31, 2013, totaled $0.97 billion and $1.18 billion,

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respectively, and had estimated fair values of $0.88 billion and $1.12 billion (excluding prepayment penalties), respectively, as of September 30, 2014 and December 31, 2013. The valuation of our debt is determined using widely accepted valuation techniques, including discounted cash flow analysis on the expected cash flows of each debt instrument. This analysis reflects the contractual terms of the debt, and uses observable market-based inputs, including interest rate curves and credit spreads. The fair values of fixed debt are determined by using the present value of future cash outflows discounted with the applicable current market rate plus a credit spread. The fair values of variable debt are determined using the stated variable rate plus the current market credit spread. Our variable rates reset every 30 to 90 days and we conclude that these rates reasonably estimate current market rates. We have determined that inputs used to value our debt fall within Level 2 of the fair value hierarchy and therefore our fair market valuation of debt is considered Level 2 in the fair value hierarchy.

Currently, we use interest rate swaps and interest rate caps (options)to manage our interest raterisk. The valuation of these instruments is determined using widely accepted valuation techniques, including discounted cash flow analysis on the expected cash flows of each derivative. This analysis reflects the contractual terms of the derivatives, including the period to maturity, and uses observable market-based inputs, including interest rate curves and implied volatilities. The fair values of interest rate swaps are determined using the market standard methodology of netting the discounted future fixed cash receipts (or payments) and the discounted expected variable cash payments (or receipts). The variable cash payments (or receipts) are based on an expectation of future interest rates (forward curves) derived from observable market interest rate curves.

The fair values of interest rate options are determined using the market standard methodology of discounting the future expected cash receipts that would occur if variable interest rates rise above the strike rate of the caps. The variable interest rates used in the calculation of projected receipts on the cap are based on an expectation of future interest rates derived from observable market interest rate curves and volatilities.

To comply with the provisions of ASC 820, we incorporate credit valuation adjustments to appropriately reflect both our own nonperformance risk and the respective counterparty’s nonperformance risk in the fair value measurements. In adjusting the fair value of our derivative contracts for the effect of nonperformance risk, we have considered the impact of netting and any applicable credit enhancements, such as collateral postings, thresholds, mutual puts and guarantees. In conjunction with the FASB's fair value measurement guidance, we made an accounting policy election to measure the credit risk of our derivative financial instruments that are subject to master netting agreements on a net basis by counterparty portfolio.

We have determined that the majority of the inputs used to value our derivatives fall within Level 2 of the fair value hierarchy, and as a result, all of our derivatives held as of September 30, 2014 and December 31, 2013 were classified as Level 2 of the fair value hierarchy.

The table below presents our assets and liabilities measured at fair value on a recurring basis as of September 30, 2014 and December 31, 2013, aggregated by the level in the fair value hierarchy within which those measurements fall.

Assets and Liabilities Measured at Fair Value on a Recurring Basis at September 30, 2014

(dollars in thousands)

	Quoted Prices in Active Markets for Identical Assets and Liabilities (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Balance at
							September 30, 2014
Assets
Derivative financial instruments	$	—	$	131	$	—	$	131
Liabilities
Derivative financial instruments	$	—	$	13,132	$	—	$	13,132

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Assets and Liabilities Measured at Fair Value on a Recurring Basis at December 31, 2013

(dollars in thousands)

	Quoted Prices in Active Markets for Identical Assets and Liabilities (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Balance at
							December 31, 2013
Assets
Derivative financial instruments	$	—	$	444	$	—	$	444
Liabilities
Derivative financial instruments	$	—	$	20,015	$	—	$	20,015

The fair value estimates presented herein are based on information available to management as of September 30, 2014 and December 31, 2013.  These estimates are not necessarily indicative of the amounts we could ultimately realize.  See also discussions in Item 1. Financial Statements – Notes to Consolidated Financial Statements, Note 8.

10.           Shareholders' Equity of MAA

On September 30, 2014, 75,242,266 shares of common stock of MAA and 4,202,123 partnership units in the Operating Partnership were issued and outstanding, representing a total of 79,444,389 shares and units. At September 30, 2013, 42,744,978 shares of common stock of MAA and 1,701,955 partnership units in the Operating Partnership were outstanding, representing a total of 44,446,933 shares and units. There were 81,654 outstanding options as of September 30, 2014 compared to zero outstanding options as of September 30, 2013. The primary reason for the increase in shares, units, and options is due to the merger with Colonial. In connection with the merger, on October 1, 2013, we issued 31,916,765 shares and 2,574,631 partnership units.

On August 26, 2010, we and our Operating Partnership entered into sales agreements with Cantor Fitzgerald & Co., Raymond James & Associates, Inc. and Merrill Lynch, Pierce, Fenner & Smith Incorporated to sell up to a combined total of 6,000,000 shares of our common stock, from time to time in at-the-market offerings or negotiated transactions through a controlled equity offering program, or ATM. We terminated this ATM program, and on February 25, 2013, we and our Operating Partnership entered into sales agreements with J.P. Morgan Securities LLC, BMO Capital Markets Corp., KeyBanc Capital Markets Inc. and UBS Securities LLC to sell up to 4,500,000 shares of our common stock with materially the same terms as our previous sales agreements.

During the three- and nine-month periods ended September 30, 2014, we issued no shares through our ATM programs. During the three- and nine-month periods ended September 30, 2013, we issued zero and 365,011 shares respectively through our ATM programs for net proceeds of zero and $24.8 million, respectively. The gross proceeds for these issuances were zero and $25.1 million, respectively. We have 4,134,989 shares remaining under our ATM program as of September 30, 2014.

During the three- and nine-month periods ended September 30, 2014, we issued 40,338 and 263,259 shares, respectively, related to the exercise of stock options. These exercises resulted in proceeds of $2.4 million and $11.9 million, respectively. During the three- and nine-month periods ended September 30, 2013, there were no stock options exercised.

During the nine months ended September 30, 2014, 9,292 shares of our 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 nine months ended September 30, 2013, 4,805 shares were acquired for these purposes.

11.    Partners' Capital of Mid-America Apartments, L.P.

Interests in MAALP are represented by OP Units. As of September 30, 2014, there were 79,444,389 OP Units outstanding, 75,242,266 or 94.7% of which were owned by MAA, MAALP's general partner. The remaining 4,202,123 OP Units were owned by non-affiliated limited partners ("Class A Limited Partners"). As of September 30, 2013, there were 44,446,933 OP Units outstanding, 42,744,978 or 96.2% of which were owned by MAA and 1,701,955 of which were owned by the Class A Limited Partners. The increase in OP Units was due primarily to the merger with Colonial. In order to complete the merger, on October 1, 2013, we issued 34,491,396 OP Units.

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MAA, as the sole general partner of MAALP, has full, complete and exclusive discretion to manage and control the business of the Operating Partnership subject to the restrictions specifically contained within the Partnership Agreement. Unless otherwise stated in the Partnership Agreement of MAALP, this power includes, but is not limited to, acquiring, leasing, or disposing of any real property; constructing buildings and making other improvements to properties owned; borrowing money, modifying or extinguishing current borrowings, issuing evidence of indebtedness, and securing such indebtedness by mortgage, deed of trust, pledge or other lien on the Operating Partnership's assets; and distribution of Operating Partnership cash or other assets in accordance with the Partnership Agreement. MAA can generally, at its sole discretion, issue and redeem OP Units and determine the consideration to be received or the redemption price to be paid, as applicable. The general partner may delegate these and other powers granted if the general partner remains in supervision of the designee.

Under the Partnership Agreement, the Operating Partnership may issue Class A OP Units and Class B OP Units. Class A OP Units may only be held by limited partners who are not affiliated with MAA, in its capacity as general partner of the Operating Partnership, while Class B OP Units may only be held by MAA, in its capacity as general partner of the Operating Partnership, and as of September 30, 2014, a total of 4,202,123 Class A OP Units in the Operating Partnership were held by limited partners unaffiliated with MAA, while a total of 75,242,266 Class B OP Units were held by MAA. In general, the limited partners do not have the power to participate in the management or control of the Operating Partnership's business except in limited circumstances including changes in the general partner and protective rights if the general partner acts outside of the provisions provided in the Partnership Agreement. The transferability of Class A OP Units is also limited by the Partnership Agreement.

Net income is allocated to the general partner and limited partners based on their respective ownership percentages of the Operating Partnership. Issuance or redemption of additional Class A OP Units or Class B OP Units changes the relative ownership percentage of the partners. The issuance of Class B OP Units generally occurs when MAA issues common stock and the proceeds from that issuance are contributed to the Operating Partnership in exchange for the issuance to MAA of a number of OP Units equal to the number of shares of common stock issued. Likewise, if MAA repurchases or redeems outstanding shares of common stock, the Operating Partnership generally redeems an equal number of Class B OP Units with similar terms held by MAA for a redemption price equal to the net purchase price of those shares of common stock. At each reporting period, the allocation between general partner capital and limited partner capital is adjusted to account for the change in the respective percentage ownership of the underlying capital of the Operating Partnership. Holders of the Class A OP Units may require MAA to redeem their Class A OP Units, in which case MAA may, at its option, pay the redemption price either in cash (in an amount per Class A OP Unit equal, in general, to the average closing price of MAA's common stock on the New York Stock Exchange over a specified period prior to the redemption date) or by delivering one share of MAA common stock (subject to adjustment under specified circumstances) for each Class A OP Unit so redeemed.

At September 30, 2014, a total of 4,202,123 Class A OP Units were outstanding and redeemable for 4,202,123 shares of MAA common stock or $275,869,375, based on the closing price of MAA’s common stock on September 30, 2014 of $65.65 per share, at MAA’s option. At September 30, 2013, a total of 1,701,955 Class A OP Units were outstanding and redeemable for 1,701,955 shares of MAA common stock or $106,372,188, based on the closing price of MAA’s common stock on September 30, 2013 of $62.50 per share, at MAA’s option.

The Operating Partnership pays the same per unit distribution in respect to the OP Units as the per share dividend MAA pays in respect to its common stock.

12.     Legal Proceedings

The Company (by virtue of its merger with Colonial) and Colonial LP along with multiple other parties, are named defendants in lawsuits arising out of alleged construction deficiencies with respect to condominium units at Regatta at James Island in Charleston, South Carolina. Regatta at James Island property was developed by certain of the Company's subsidiaries prior to MAA's merger with Colonial and constructed by Colonial Construction Services, LLC. The condominiums were constructed in 2006 and all 212 units were sold. The lawsuits, one filed on behalf of the condominium homeowners association and one filed by three of the unit owners (purportedly on behalf of all unit owners), were filed in South Carolina state court (Charleston County) in August 2012, against various parties involved in the development and construction of the Regatta at James Island property, including the contractors, subcontractors, architect, developer, and product manufacturers. The plaintiffs are seeking damages resulting primarily from alleged construction deficiencies, but the amount plaintiffs seek to recover has not been disclosed. The lawsuits are currently in discovery. The Company is continuing to investigate the matter and evaluate its options and intends to vigorously defend itself against these claims. No assurance can be given that the matter will be resolved favorably to the Company. The Companyhas included in its loss contingency an estimate of probable loss in connection with this matter, but currently cannot reasonably estimate any further possible loss, or any further range of reasonably possible loss, in connection with this matter.

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In addition, the Company is subject to various other legal proceedings and claims that arise in the ordinary course of its business operations. Matters which arise out of allegations of bodily injury, property damage, and employment practices are generally covered by insurance. While the resolution of these other matters cannot be predicted with certainty, management currently believes the final outcome of such matters will not have a material adverse effect on the financial position, results of operations or cash flows of the Company.

Loss Contingencies

The outcomes of the claims, disputes and legal proceedings described or referenced above are subject to significant uncertainty. The Company records an accrual for loss contingencies when a loss is probable and the amount of the loss can be reasonably estimated. The Company reviews these accruals quarterly and makes revisions based on changes in facts and circumstances. When a loss contingency is not both probable and reasonably estimable, the Company does not accrue the loss. However, for material loss contingencies, if the unrecorded loss (or an additional loss in excess of the accrual) is at least a reasonable possibility and material, then the Company discloses a reasonable estimate of the possible loss, or range of loss, if such reasonable estimate can be made. If the Company cannot make a reasonable estimate of the possible loss, or range of loss, then that is disclosed.

The assessment of whether a loss is probable or a reasonable possibility, and whether the loss or range of loss is reasonably estimable, often involve a series of complex judgments about future events. Among the factors that the Company considers in this assessment, including with respect to the matters disclosed in this Note, are the nature of existing legal proceedings and claims, the asserted or possible damages or loss contingency (if reasonably estimable), the progress of the matter, existing law and precedent, the opinions or views of legal counsel and other advisers, the Company's experience in similar matters, the facts available to the Company at the time of assessment, and how the Company intends to respond, or has responded, to the proceeding or claim. The Company's assessment of these factors may change over time as individual proceedings or claims progress. For matters where the Company is not currently able to reasonably estimate a range of reasonably possible loss, the factors that have contributed to this determination include the following: (i) the damages sought are indeterminate; (ii) the proceedings are in the early stages; (iii) the matters involve novel or unsettled legal theories or a large or uncertain number of actual or potential cases or parties; and/or (iv) discussions with the parties in matters that are expected ultimately to be resolved through negotiation and settlement have not reached the point where the Company believes a reasonable estimate of loss, or range of loss, can be made. In such instances, the Company believes that there is considerable uncertainty regarding the timing or ultimate resolution of such matters, including a possible eventual loss or business impact, if any.

13.           Discontinued Operations

In April 2014, the FASB issued ASU No. 2014-08, Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity. We adopted ASU 2014-08 during the period ending March 31, 2014. Due to the early adoption of ASU 2014-08, we did not classify Brookwood Mall, Ansley Village, Colonial Village at North Arlington, Colonial Village at Vista Ridge, Greenbrook, Colonial Village at Inverness, Colonial Village at Charleston Place, Colonial Village at Huntleigh Woods, or Colonial Village at Ashford Place, which were sold during the nine months ended September 30, 2014, as discontinued operations.

Willow Creek, one of the properties that we sold during the nine months ended September 30, 2014, as well as the nine properties sold by us during 2013, have been classified as discontinued operations in the Consolidated Statements of Operations. One additional property, Colonial Promenade Nord du Lac, was classified as held for sale as of the end of the third quarter of 2014 and therefore was classified as a discontinued operation in the Consolidated Statements of Operations. We expect to complete the sale of Colonial Promenade Nord du Lac during the fourth quarter of 2014. Willow Creek and Colonial Promenade Nord du Lac are included in discontinued operations because they were shown in discontinued operations as of December 31, 2013, our latest fiscal year, and thus are not subject to ASU 2014-08.

The following table lists the communities classified as discontinued operations for the nine months ended September 30, 2014:

Community	Units/Sq. Ft.	Date Sold	Location	Operating Segment
Willow Creek	285	January 15, 2014	Columbus, Georgia	Non-same store and other
Colonial Promenade Nord du Lac	195,536	Held for Sale	New Orleans, Louisiana	Non-same store and other

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The following is a summary of income from continuing and discontinued operations attributable to MAA and noncontrolling interest for the three- and nine-month periods ended September 30, 2014 and 2013 (dollars in thousands):

	Three months ended September 30,				Nine months ended September 30,
	2014		2013		2014		2013
Income from continuing operations:
Attributable to MAA	$	66,609	$	15,665	$	107,083	$	50,761
Attributable to noncontrolling interest	3,722		632		6,005		1,973
Income from continuing operations	$	70,331	$	16,297	$	113,088	$	52,734
Income from discontinued operations:
Attributable to MAA	$	367	$	28,619	$	6,372	$	73,792
Attributable to noncontrolling interest	21		1,140		359		2,563
Income from discontinued operations	$	388	$	29,759	$	6,731	$	76,355

The following is a summary of earnings from discontinued operations for MAA for the three- and nine-month periods ended September 30, 2014 and 2013 (dollars in thousands):

	Three months ended September 30,						Nine months ended September 30,
	2014			2013			2014			2013
Revenues
Rental revenues	$	795		$	2,295		$	2,384		$	11,830
Other revenues	(2		)	243			(7		)	1,088
Total revenues	793			2,538			2,377			12,918
Expenses
Property operating expenses	256			1,132			856			5,496
Depreciation and amortization	—			342			42			2,553
Interest expense and other	49			92			126			418
Total expense	305			1,566			1,024			8,467
Income from discontinued operations before (loss) gain on sale	488			972			1,353			4,451
Net gain (loss) on insurance and other settlement proceeds on discontinued operations	3			(1		)	—			(5		)
(Loss) gain on sale of discontinued operations	(103		)	28,788			5,378			71,909
Income from discontinued operations	$	388		$	29,759		$	6,731		$	76,355

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The following is a summary of earnings from discontinued operations for MAALP for the three- and nine-month periods ended September 30, 2014 and 2013 (dollars in thousands):

	Three months ended September 30,						Nine months ended September 30,
	2014			2013			2014			2013
Revenues:
Rental revenues	$	795		$	2,287		$	2,384		$	10,782
Other revenues	(2		)	243			(7		)	998
Total revenues	793			2,530			2,377			11,780
Expenses:
Property operating expenses	256			1,123			856			4,991
Depreciation and amortization	—			342			42			2,317
Interest expense and other	49			92			126			418
Total expenses	305			1,557			1,024			7,726
Income from discontinued operations before (loss) gain on sale	488			973			1,353			4,054
Net gain (loss) on insurance and other settlement proceeds on discontinued operations	3			(1		)	—			(5		)
(Loss) gain on sale of discontinued operations	(103		)	28,806			5,378			60,585
Income from discontinued operations	$	388		$	29,778		$	6,731		$	64,634

14.           Segment Information

As of September 30, 2014, we owned or had an ownership interest in 265 multifamily apartment communities in 14 different states from which we derived all significant sources of earnings and operating cash flows. Senior management evaluates performance and determines resource allocations by reviewing apartment communities individually and in the following reportable operating segments:

• Large market same store communities are generally communities:

◦ in markets with a population of at least 1 million and at least 1% of the total public multifamily REIT units; and

◦ that we have owned and have been stabilized for at least a full 12 months and have not been classified as held for sale.

• Secondary market same store communities are generally communities:

◦ in markets with populations of more than 1 million but less than 1% of the total public multifamily REIT units or in markets with a population of less than 1 million; and

◦ that we have owned and have been stabilized for at least a full 12 months and have not been classified as held for sale.

• Non same store communities and other includes recent acquisitions, communities in development or lease-up, communities that have been identified for disposition, and communities that have undergone a significant casualty loss. Also included in non same store communities are non multifamily activities, which represent less than 1% of our portfolio.

On the first day of each calendar year, we determine the composition of our same store operating segments for that year as well as adjusting the previous year, which allows us to evaluate full period-over-period operating comparisons. Properties in development or lease-up will be added to the same store portfolio on the first day of the calendar year after they have been owned and stabilized for at least a full 12 months. Communities are considered stabilized after achieving 90% occupancy for 90 days. Communities that have been identified for disposition are excluded from our same store portfolio. We utilize net operating income, or NOI, a non-GAAP financial measure, in evaluating the performance of the segments.  Total NOI represents total property revenues less total property operating expenses, excluding depreciation and amortization, for all properties held during the period regardless of their status as held for sale. We believe NOI is a helpful tool in evaluating the operating performance of our segments because it measures the core operations of property performance by excluding corporate level expenses and other items not related to property operating performance.

A redevelopment community is a community with a specific plan in place to either upgrade at least half of the community's units over a period of time with new finishes, fixtures, and appliances, among other upgrades.  These plans include spending a pre-defined amount of capital per unit to achieve a rent increase as a result of the upgrades.  We separately identify

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redevelopment communities that would cause a material distortion of normal same store operating results. Routine renovations occur at a property as items need to be replaced as a normal part of operations and which are done with an expectation to maintain the current level of quality at the property. There is no specified plan in place for routine renovations.

Revenues and NOI for each reportable segment for the three- and nine-month periods ended September 30, 2014 and 2013 were as follows (dollars in thousands):

	Three months ended September 30,						Nine months ended September 30,
	2014			2013			2014			2013
Revenues
Large Market Same Store	$	64,017		$	61,135		$	187,712		$	180,012
Secondary Market Same Store	62,758			61,753			186,260			183,450
Non-Same Store and Other	121,995			12,372			362,681			31,200
Total property revenues	248,770			135,260			736,653			394,662
Management fee income	11			146			169			465
Total operating revenues	$	248,781		$	135,406		$	736,822		$	395,127
NOI
Large Market Same Store	$	38,556		$	35,651		$	111,909		$	106,279
Secondary Market Same Store	37,425			36,375			111,468			110,455
Non-Same Store and Other	72,695			8,901			219,160			26,271
Total NOI	148,676			80,927			442,537			243,005
Discontinued operations NOI included above	(539		)	(1,360		)	(1,502		)	(7,378		)
Management fee income	11			146			169			465
Depreciation and amortization	(70,222		)	(32,766		)	(229,866		)	(97,183		)
Acquisition expense	(13		)	—			(971		)	(499		)
Property management expense	(7,429		)	(4,970		)	(24,019		)	(15,301		)
General and administrative expense	(6,511		)	(3,976		)	(16,065		)	(10,604		)
Merger related expenses	(331		)	(5,561		)	(3,202		)	(11,298		)
Integration costs	(147		)	(35		)	(7,140		)	(35		)
Interest and other non-property income	85			16			1,166			86
Interest expense	(28,251		)	(14,923		)	(89,090		)	(45,657		)
Loss on debt extinguishment/modification	(2,586		)	(218		)	(2,586		)	(387		)
Amortization of deferred financing costs	(1,000		)	(820		)	(3,485		)	(2,427		)
Gain on sale of depreciable real estate assets excluded from discontinued operations	36,032			—			42,254			—
Net casualty (loss) gain after insurance and other settlement proceeds	(126		)	—			(431		)	455
Income tax expense	(442		)	(223		)	(1,235		)	(669		)
Gain on sale of non-depreciable real estate assets	—			—			535			—
Gain from real estate joint ventures	3,124			60			6,019			161
Discontinued operations	388			29,759			6,731			76,355
Net income attributable to noncontrolling interests	(3,743		)	(1,772		)	(6,364		)	(4,536		)
Net income attributable to MAA	$	66,976		$	44,284		$	113,455		$	124,553

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Assets for each reportable segment as of September 30, 2014 and December 31, 2013, were as follows (dollars in thousands):

	September 30, 2014		December 31, 2013
Assets
Large Market Same Store	$	1,227,413	$	1,252,575
Secondary Market Same Store	764,383		796,697
Non-Same Store and Other	4,637,072		4,638,892
Corporate assets	154,146		153,761
Total assets	$	6,783,014	$	6,841,925

15.           Real Estate Acquisitions and Dispositions

On July 10, 2014, we closed on the sale of the 214-unit Colonial Village at Charleston Place apartment community located in Charlotte, North Carolina.

On July 10, 2014, we closed on the sale of the 1,037-unit Greenbrook apartment community located in Memphis, Tennessee.

On July 10, 2014, we closed on the sale of the 586-unit Colonial Village at Inverness apartment community located in Birmingham, Alabama.

On July 23, 2014, we closed on the purchase of the 300-unit Verandas at Southwood apartment community located in Tallahassee, Florida. This property was previously a part of Mid-America Multifamily Fund II, or Fund II.

On September 11, 2014, we closed on the sale of the 168-unit Colonial Village at Ashford Place apartment community located in Mobile, Alabama.

On September 11, 2014, we closed on the sale of the 233-unit Colonial Village at Huntleigh Woods apartment community located in Mobile, Alabama.

On September 15, 2015, we sold our 10% interest in Belterra, a 288-unit apartment community acquired as part of the merger and located in Fort Worth, Texas.

16.           Recent Accounting Pronouncements

Impact of Recently Issued Accounting Standards

In August 2014, the FASB issued ASU 2014-15, Disclosure of Uncertainties about an Entity's Ability to Continue as a Going Concern. ASU 2014-15 requires an entity's management to evaluate whether there are conditions or events, considered in the aggregate, that raise substantial doubt about the entity's ability to continue as a going concern within one year after the date that the financial statements are issued. If substantial doubt exists, the entity must disclose the principal conditions or events that raised the substantial doubt, management's evaluation of the significance of these conditions, and management's plan for alleviating the substantial doubt about the entity's ability to continue as a going concern. ASU 2014-15 is effective for annual periods ending after December 15, 2016; however, early adoption is permitted. The Company is currently in the process of evaluating the impact of the ASU, but does not expect the adoption of this ASU to have a material impact on our consolidated financial position or results of operations taken as a whole.

In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers, which amended the existing accounting standards for revenue recognition. ASU 2014-09 establishes principles for recognizing revenue upon the transfer of promised goods or services to customers, in an amount that reflects the expected consideration received in exchange for those goods or services. It is effective for annual reporting periods beginning after December 15, 2016. Early adoption is not permitted. The amendments may be applied retrospectively to each prior period presented or retrospectively with the cumulative effect recognized as of the date of initial application. The Company is currently in the process of evaluating the impact of adoption of the ASU on its consolidated financial condition and results of operations taken as a whole, but does not expect the impact to be material.

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In April 2014, the FASB issued ASU No. 2014-08, Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity. ASU 2014-08 raises the threshold for disposals to qualify as discontinued operations. It also requires additional disclosures for discontinued operations and new disclosures for individually material disposal transactions that do not meet the definition of a discontinued operation. The ASU is effective for fiscal years beginning after December 15, 2014, and interim periods within those years; however, early adoption is permitted beginning in the first quarter of 2014. We adopted ASU 2014-08 during the period ending March 31, 2014. The adoption of ASU 2014-08 required us to not classify certain disposals occurring during 2014 as discontinued operations.

In January 2013, the FASB issued ASU No. 2013-01, Clarifying the Scope of Disclosures about Offsetting Assets and Liabilities. ASU 2013-01 clarifies that the scope of ASU 2011-11, Disclosures about Offsetting Assets and Liabilities, would apply to derivatives accounted for in accordance with FASB ASC 815, Derivatives and Hedging, including bifurcated embedded derivatives, repurchase agreements and reverse repurchase agreements, and securities borrowing and securities lending transactions that are either offset in accordance with ASC 210-20-45 or ASC 815-10-45 or subject to an enforceable master netting arrangement or similar agreement. This ASU is effective for fiscal years beginning on or after January 1, 2013 and interim periods within those annual periods. We adopted ASU 2013-01 during the period ended March 31, 2013. The adoption of ASU 2013-01 has not had a material impact on our consolidated financial condition or results of operations taken as a whole.

17. Subsequent Events

Financing

On October 1, 2014, we amended the terms of our $150 million term loan agreement with U.S. Bank. The amendment reduced the interest rate from LIBOR plus an interest rate spread of 1.10% to 2.05% to a more favorable rate of LIBOR plus an interest rate spread of 0.90% to 1.90% based on our credit rating. The amendment also extended the maturity of the agreement to March 1, 2020.

Acquisitions

On October 30, 2014, we closed on the purchase of the 480-unit Highlands of West Village apartment community located in Smyrna (Atlanta), Georgia. This community also includes approximately 63,000 square feet of retail space.

On October 31, 2014, we closed on the purchase of the 328-unit Bulverde Oaks apartment community located in San Antonio, Texas.

Item 2.    Management’s Discussion and Analysis of Financial Condition and Results of Operations.

The following discussion analyzes the financial condition and results of operations of both MAA and the Operating Partnership, of which MAA is the sole general partner and in which MAA owned a 94.7% limited partner interest as of September 30, 2014. MAA conducts all of its business through the Operating Partnership and the Operating Partnership’s various subsidiaries.

The following discussion should be read in conjunction with the condensed consolidated financial statements and notes appearing elsewhere in this Quarterly Report.  Historical results and trends that might appear in the condensed consolidated financial statements should not be interpreted as being indicative of future operations.

Risk Associated with Forward Looking Statements

We consider this and other sections of this Quarterly Report on Form 10-Q to contain forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended, or the Exchange Act, with respect to our expectations for future periods. The factors described in Part I, Item 1A, “Risk Factors,” in our Annual Report on Form 10-K for the year ended December 31, 2013, among others, could cause actual results to differ materially from those contained in forward-looking statements made in this Quarterly Report on Form 10-Q, in the documents incorporated by reference into this Quarterly Report on Form 10-Q or presented elsewhere by our management from time to time. Forward-looking statements do not discuss historical fact, but instead include statements related to expectations, projections, intentions or other items related to the future. Such forward-looking statements include, without limitation, statements concerning property acquisitions and dispositions, joint venture activity, development and renovation activity as well as other capital expenditures, capital raising activities, rent and expense growth, occupancy, financing activities and interest rate and other economic expectations and statements about the benefits of our merger with

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Colonial Properties Trust, or Colonial. Words such as “expects,” “anticipates,” “intends,” “plans,” “believes,” “seeks,” “estimates,” and variations of such words and similar expressions are intended to identify such forward-looking statements. Such statements involve known and unknown risks, uncertainties and other factors which may cause the actual results, performance or achievements to be materially different from the results of operations, financial conditions or plans expressed or implied by such forward-looking statements. Such factors include, among other things, unanticipated adverse business developments affecting us, or our properties, adverse changes in the real estate markets and general and local economies and business conditions. Although we believe that the assumptions underlying the forward-looking statements contained herein are reasonable, any of the assumptions could be inaccurate, and therefore such forward-looking statements included in this report may not prove to be accurate. In light of the significant uncertainties inherent in the forward-looking statements included herein, the inclusion of such information should not be regarded as a representation by us or any other person that the results or conditions described in such statements or our objectives and plans will be achieved.

The following factors, among others, could cause our future results to differ materially from those expressed in the forward-looking statements:

• inability to generate sufficient cash flows due to market conditions, changes in supply and/or demand, competition, uninsured losses, changes in tax and housing laws, or other factors;

• exposure, as a multifamily focused REIT, to risks inherent in investments in a single industry;

• difficulty in completing the integration of Colonial’s operations, systems and personnel with ours and certain uncertainties associated with our ability to sell our commercial asset portfolio;

• adverse changes in real estate markets, including, but not limited to, the extent of future demand for multifamily units in our primary markets, barriers of entry into new markets which we may seek to enter in the future, limitations on our ability to increase rental rates, competition, our ability to identify and consummate attractive acquisitions or development projects on favorable terms, our ability to consummate any planned dispositions in a timely manner on acceptable terms, and our ability to reinvest sale proceeds in a manner that generates favorable returns;

• failure of new acquisitions to achieve anticipated results or be efficiently integrated;

• failure of development communities to be completed, if at all, within budget and on a timely basis or to lease-up as anticipated;

• unexpected capital needs;

• changes in operating costs, including real estate taxes, utilities and insurance costs;

• losses from catastrophes in excess of our insurance coverage;

• ability to obtain financing at favorable rates, if at all, and refinance existing debt as it matures;

• level and volatility of interest or capitalization rates or capital market conditions;

• loss of hedge accounting treatment for interest rate swaps or interest rate caps;

• the continuation of the good credit of our interest rate swap and cap providers;

• price volatility, dislocations and liquidity disruptions in the financial markets and the resulting impact on financing;

• the effect of any rating agency actions on the cost and availability of new debt financing;

• significant decline in market value of real estate serving as collateral for mortgage obligations;

• significant change in the mortgage financing market that would cause single-family housing, either as an owned or rental product, to become a more significant competitive product;

• our ability to continue to satisfy complex rules in order to maintain our status as a REIT for federal income tax purposes, the ability of the Operating Partnership to satisfy the rules to maintain its status as a partnership for federal income tax purposes, the ability of our taxable REIT subsidiaries to maintain their status as such for federal income tax purposes, and our ability and the ability of our subsidiaries to operate effectively within the limitations imposed by these rules;

• inability to attract and retain qualified personnel;

• potential liability for environmental contamination;

• adverse legislative or regulatory tax changes;

• litigation and compliance costs associated with laws requiring access for disabled persons; and

• other risks identified in this Quarterly Report on Form 10-Q and, from time to time, in other reports we file with the Securities and Exchange Commission, or the SEC, or in other documents that we publicly disseminate.

We undertake no obligation to update or revise any forward-looking statements to reflect events, circumstances or changes in expectations after the date on which such statement is made.

Critical Accounting Policies and Estimates

Please refer to the 2013 Form 10-K for discussions of our critical accounting policies. During the three months ended September 30, 2014, there were no material changes to these policies.

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Overview of the Three Months Ended September 30, 2014

As noted earlier, on October 1, 2013, we consummated the merger and acquired all of Colonial's net assets. Our September 30, 2014 and December 31, 2013 balance sheets include the combined assets and liabilities of MAA and Colonial. All properties acquired from Colonial have been placed in our Non-Same Store operating segment, as the properties are recent acquisitions and have not been owned and stabilized for at least 12 months.

We experienced an increase in income from continuing operations for the three months ended September 30, 2014 over the three months ended September 30, 2013 as increases in revenues outpaced increases in expenses. The increases in revenues came from a 4.7% increase in our large market same store segment, a 1.6% increase in our secondary market same store segment and a 886.1% increase in our non-same store and other segment, which was primarily a result of the merger. The increase in expense came from a 0.1% decrease in our large market same store segment and a 0.2% decrease in our secondary market same store segment both being offset by a 931.6% increase in our non-same store and other segment, which was primarily the result of the merger. Our same store portfolio represents those communities that have been held and have been stabilized for at least 12 months. Communities excluded from the same store portfolio would include recent acquisitions, communities being developed or in lease-up, communities undergoing extensive renovations, and communities identified as discontinued operations. The drivers of these increases are discussed below in the results of operations section.

The following table shows our multifamily real estate assets as of September 30, 2014 and 2013:

	September 30, 2014	September 30, 2013
Properties	265	160
Units	81,137	48,343
Development Units	514	564
Average Effective Monthly Rent/Unit, excluding lease-up and development	$937.93	$891.45
Occupancy, excluding lease-up and development	96.4%	96.3%

See discussion of same store average rent per unit and occupancy comparisons in the Trends section below.    

In addition to the multi-family assets detailed above, we also owned or owned an interest in four commercial properties totaling 317,000 square feet of leasable space.

Average effective monthly rent per unit is equal to the average of gross rent amounts after the effect of leasing concessions for occupied units plus prevalent market rates asked for unoccupied units, divided by the total number of units. Leasing concessions represent discounts to the current market rate. We believe average effective monthly rent is a helpful measurement in evaluating average pricing. It does not represent actual rental revenue collected per unit.

The following is a discussion of our consolidated financial condition and results of operations for the three- and nine-month periods ended September 30, 2014and2013.This discussion should be read in conjunction with all of the consolidated financial statements included in this Quarterly Report on Form 10-Q.

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Results of Operations

Comparison of the three months ended September 30, 2014, to the three months ended September 30, 2013

Property Revenues

The following table shows our property revenues by segment for the three months ended September 30, 2014 and September 30, 2013 (dollars in thousands):

	Three months ended September 30,
	2014		2013		Increase		Percentage Increase
Large Market Same Store	$	64,017	$	61,135	$	2,882	4.7	%
Secondary Market Same Store	62,758		61,753		1,005		1.6	%
Non-Same Store and Other	121,995		12,372		109,623		886.1	%
Total	$	248,770	$	135,260	$	113,510	83.9	%

The increases in property revenues from our large market same store and secondary market same store groups are primarily a result of increased average rent per unit of 5.2%. The increase in property revenues from our non-same store and other group is primarily due to the addition of the Colonial portfolio as a result of the merger.

Property Operating Expenses

Property operating expenses include costs for property personnel, building repairs and maintenance, real estate taxes and insurance, utilities, landscaping and depreciation and amortization. The following table shows our property operating expenses by segment for the three months ended September 30, 2014 and September 30, 2013 (dollars in thousands):

	Three months ended September 30,
	2014		2013		Increase/(Decrease)			Percentage Increase/(Decrease)
Large Market Same Store	$	25,461	$	25,484	$	(23	)	(0.1	)%
Secondary Market Same Store	25,333		25,378		(45		)	(0.2	)%
Non-Same Store and Other	49,839		4,831		45,008			931.6	%
Total	$	100,633	$	55,693	$	44,940		80.7	%

The decreases in property operating expenses from our large market same store and secondary market same store groups are primarily a result of decreases in insurance and landscaping expenses. The increase in property operating expenses from our non-same store and other group is primarily due to the addition of the Colonial portfolio as a result of the merger.

Depreciation and Amortization

The following table shows our depreciation and amortization expense by segment for the three months ended September 30, 2014 and September 30, 2013 (dollars in thousands):

	Three months ended September 30,
	2014		2013		Increase		Percentage Increase
Large Market Same Store	$	14,637	$	14,282	$	355	2.5	%
Secondary Market Same Store	15,054		14,942		112		0.7	%
Non-Same Store and Other	40,531		3,542		36,989		1,044.3	%
Total	$	70,222	$	32,766	$	37,456	114.3	%

The increase in depreciation and amortization expense from our non-same store and other group is primarily due to the addition of the Colonial portfolio as a result of the merger.

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Property Management Expense

Property management expense for the three months ended September 30, 2014 was approximately $7.4 million, an increase of $2.5 million from the three months ended September 30, 2013. The majority of the increase was related to increases in payroll expenses and software maintenance fees primarily as a result of the merger.

General and Administrative Expense

General and Administrative expense for the three months ended September 30, 2014 was approximately $6.5 million, an increase of $2.5 million from the three months ended September 30, 2013. The majority of the increase was related to increases in stock incentives and payroll expenses primarily as a result of the merger.

Merger Related Expense

Merger related expenses, primarily severance, legal, and professional costs for the acquisition of Colonial were approximately $0.3 million for the three months ended September 30, 2014, a decrease of $5.2 million from the three months ended September 30, 2013.

Interest Expense

Interest expense for the three months ended September 30, 2014 was approximately $28.3 million, an increase of $13.3 million from the three months ended September 30, 2013. The increase was primarily the result of an increase in our average debt outstanding from the three months ended September 30, 2013 to the three months ended September 30, 2014 of approximately $1.70 billion, due primarily to the assumption of Colonial's debt as a result of the merger.

Debt Extinguishment

Loss on debt extinguishment for the three months ended September 30, 2014 was approximately $2.6 million, an increase of $2.4 million from the three months ended September 30, 2013. The increase was primarily the result of the difference between the amount to extinguish debt and the principal balance during the three months ended September 30, 2014 being larger than this difference during the three months ended September 30, 2013.

Gain from Real Estate Joint Ventures

Gain from real estate joint ventures for the three months ended September 30, 2014 was approximately $3.1 million, an increase of $3.1 million from the three months ended September 30, 2013. The increase was primarily a result of recording a $2.8 million gain for the promote received from our Fund II partner during the three months ended September 30, 2014. The promote was received as a result of MAA achieving certain performance metrics in its management of the Fund II properties over the life of the joint venture. There was no such gain recorded during the three months ended September 30, 2013.

Discontinued Operations

Income from discontinued operations before gain on sale for the three months ended September 30, 2014 was approximately $0.5 million, a decrease of $0.5 million from the three months ended September 30, 2013. The decrease is driven by the fact that the properties included in discontinued operations had lower net income during the three months ended September 30, 2014 as compared to the three months ended September 30, 2013.

We recorded a gain on sale of discontinued operations of $28.8 million for the three months ended September 30, 2013. We did not record a material gain on sale of discontinued operations for the three months ended September 30, 2014 because we did not dispose of any properties which were classified as discontinued operations.

Dispositions of Depreciable Real Estate Assets Excluded from Discontinued Operations

We recorded a gain on sale of depreciable assets excluded from discontinued operations of $36.0 million for the three months ended September 30, 2014. We did not record a similar gain for the three months ended September 30, 2013 because we did not dispose of any properties which were excluded from discontinued operations.

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Net Income Attributable to MAA

Primarily as a result of the foregoing, net income attributable to MAA increased by approximately $22.7 million for the three months ended September 30, 2014 from the three months ended September 30, 2013.

Comparison of the nine months ended September 30, 2014, to the nine months ended September 30, 2013

Property Revenues

The following table shows our property revenues by segment for the nine months ended September 30, 2014 and September 30, 2013 (dollars in thousands):

	Nine months ended September 30,
	2014		2013		Increase		Percentage Increase
Large Market Same Store	$	187,712	$	180,012	$	7,700	4.3	%
Secondary Market Same Store	186,260		183,450		2,810		1.5	%
Non-Same Store and Other	362,681		31,200		331,481		1,062.4	%
Total	$	736,653	$	394,662	$	341,991	86.7	%

The increases in property revenues from our large market same store and secondary market same store groups are primarily a result of increased average rent per unit of 5.2%. The increase in property revenues from our non-same store and other group is primarily due to the addition of the Colonial portfolio as a result of the merger.

Property Operating Expenses

Property operating expenses include costs for property personnel, building repairs and maintenance, real estate taxes and insurance, utilities, landscaping and depreciation and amortization. The following table shows our property operating expenses by segment for the nine months ended September 30, 2014 and September 30, 2013 (dollars in thousands):

	Nine months ended September 30,
	2014		2013		Increase		Percentage Increase
Large Market Same Store	$	75,802	$	73,733	$	2,069	2.8	%
Secondary Market Same Store	74,793		72,995		1,798		2.5	%
Non-Same Store and Other	145,023		12,307		132,716		1,078.4	%
Total	$	295,618	$	159,035	$	136,583	85.9	%

The increases in property operating expenses from our large market same store and secondary market same store groups are primarily a result of increases in real estate taxes, water and sewer utilities, and mulch landscaping expenses, with real estate taxes being the largest component. The increase in property operating expenses from our non-same store and other group is primarily due to the addition of the Colonial portfolio as a result of the merger.

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Depreciation and Amortization

The following table shows our depreciation and amortization expense by segment for the nine months ended September 30, 2014 and September 30, 2013 (dollars in thousands):

	Nine months ended September 30,
	2014		2013		Increase		Percentage Increase
Large Market Same Store	$	43,602	$	43,208	$	394	0.9	%
Secondary Market Same Store	44,939		44,718		221		0.5	%
Non-Same Store and Other	141,325		9,257		132,068		1,426.7	%
Total	$	229,866	$	97,183	$	132,683	136.5	%

The increase in depreciation and amortization expense from our non-same store and other group is primarily due to the addition of the Colonial portfolio as a result of the merger.

Property Management Expense

Property management expense for the nine months ended September 30, 2014 was approximately $24.0 million, an increase of $8.7 million from the nine months ended September 30, 2013. The majority of the increase was related to increases in payroll expenses and software maintenance fees primarily as a result of the merger.

General and Administrative Expense

General and Administrative expense for the nine months ended September 30, 2014 was approximately $16.1 million, an increase of $5.5 million from the nine months ended September 30, 2013. The majority of the increase was related to increases in payroll expenses and stock incentives primarily as a result of the merger.

Merger and Integration Related Expense

Merger related expenses, primarily severance, legal, and professional costs for the acquisition of Colonial were approximately $3.2 million for the nine months ended September 30, 2014, a decrease of $8.1 million from the nine months ended September 30, 2013. We also incurred integration related expenses, primarily related to temporary systems, staffing, and facilities costs of $7.1 million for the nine months ended September 30, 2014. We did not incur any material integration related expenses for the nine months ended September 30, 2013.

Interest Expense

Interest expense for the nine months ended September 30, 2014 was approximately $89.1 million, an increase of $43.4 million from the nine months ended September 30, 2013. The increase was primarily the result of an increase in our average debt outstanding from the nine months ended September 30, 2013 to the nine months ended September 30, 2014 of approximately $1.74 billion, due primarily to the assumption of Colonial's debt as a result of the merger.

Debt Extinguishment

Loss on debt extinguishment for the nine months ended September 30, 2014 was approximately $2.6 million, an increase of $2.2 million from the nine months ended September 30, 2013. The increase was primarily the result of the difference between the amount to extinguish debt and the principal balance during the nine months ended September 30, 2014 being larger than this difference during the nine months ended September 30, 2013.

Gain from Real Estate Joint Ventures

Gain from real estate joint ventures for the nine months ended September 30, 2014 was approximately $6.0 million, an increase of $5.9 million from the nine months ended September 30, 2013. The increase was primarily a result of recording a $2.8 million gain for the promote received from our Fund II partner during the nine months ended September 30, 2014. The promote was received as a result of MAA achieving certain performance metrics in its management of the Fund II properties over the life of the joint venture. We also sold one joint venture property to external parties during the nine months ended

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September 30, 2014, resulting in a gain. There were no such gains recorded during the nine months ended September 30, 2013.

Discontinued Operations

Income from discontinued operations before gain on sale for the nine months ended September 30, 2014 was approximately $1.4 million, a decrease of $3.1 million from the nine months ended September 30, 2013. The decrease is driven by the fact that the properties included in discontinued operations had lower net income during the nine months ended September 30, 2014 as compared to the nine months ended September 30, 2013.

We recorded a gain on sale of discontinued operations of $5.4 million for the nine months ended September 30, 2014 as compared to a $71.9 million gain for the nine months endedSeptember 30, 2013. The decrease in the gain is caused by the proceeds received in 2014 being less than the proceeds received in 2013 in relation to the net book value of the properties sold as well as recording a gain on sale of depreciable assets excluded from discontinued operations in 2014, which is discussed further below.

Dispositions of Depreciable Real Estate Assets Excluded from Discontinued Operations

We recorded a gain on sale of depreciable assets excluded from discontinued operations of $42.3 million for the nine months ended September 30, 2014. We did not record a similar gain for the nine months endedSeptember 30, 2013 because we did not dispose of any properties which were excluded from discontinued operations.

Net Income Attributable to MAA

Primarily as a result of the foregoing, net income attributable to MAA decreased by approximately $11.1 million for the nine months ended September 30, 2014 from the nine months ended September 30, 2013.

Funds from Operations

Funds from operations, or FFO, represents net income (computed in accordance with GAAP) excluding extraordinary items, asset impairment, gains or losses on disposition of depreciable real estate assets, plus net income attributable to noncontrolling interest, depreciation and amortization of real estate, and adjustments for joint ventures to reflect FFO on the same basis. Disposition of real estate assets includes sales of discontinued operations.

FFO should not be considered as an alternative to net income or any other GAAP measurement of performance, as an indicator of operating performance or as an alternative to cash flow from operating, investing, and financing activities as a measure of liquidity. We believe that FFO is helpful to investors in understanding our operating performance because its calculation excludes depreciation and amortization expense on real estate assets. We believe that GAAP historical cost depreciation of real estate assets is generally not correlated with changes in the value of those assets, whose value does not diminish predictably over time, as historical cost depreciation implies. Our calculation of FFO may differ from the methodology for calculating FFO utilized by other REITs and, accordingly, may not be comparable to such other REITs.

Core FFO represents FFO excluding certain non-cash or non-routine items such as acquisition, merger and integration expenses, mark-to-market debt adjustments and loss or gain on debt extinguishment. While our definition of Core FFO is similar to others in our industry, our precise methodology for calculating Core FFO may differ from that utilized by other REITs and, accordingly, may not be comparable to such other REITs. Core FFO should not be considered as an alternative to net income. MAA believes that Core FFO is helpful in understanding our operating performance in that it removes certain items that by their nature are not comparable over periods and therefore tend to obscure actual operating performance.

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The following table is a reconciliation of Core FFO and FFO to net income available for MAA common shareholders for the three and nine months ended September 30, 2014 and September 30, 2013 (dollars in thousands): 

	Three months ended September 30,						Nine months ended September 30,
	2014			2013			2014				2013
Net income available for MAA common shareholders	$	66,976		$	44,284		$	113,455			$	124,553
Depreciation and amortization of real estate assets	69,613			32,200			228,106				95,641
Depreciation and amortization of real estate assets of discontinued operations	—			331			42				2,541
Loss (gain) on sales of discontinued operations	103			(28,788		)	(5,378		)		(71,909		)
Gain on sale of depreciable real estate assets excluded from discontinued operations	(36,032		)	—			(42,254		)		—
Gain on disposition within unconsolidated entities	(603		)	—			(4,017		)		—
Depreciation and amortization of real estate assets of real estate joint ventures	37			253			391				744
Net income attributable to noncontrolling interests	3,743			1,772			6,364				4,536
Funds from operations	103,837			50,052			296,709				156,106
Acquisition expense	13			—			971				499
Merger related expenses	331			5,561			3,202				11,298
Integration related expenses	147			35			7,140				35
Gain on sale of non-depreciable real estate assets	—			—			(535		)		—
Mark-to-market debt adjustment	(5,328		)	(442		)	(19,568		)		(948		)
Loss on debt extinguishment	2,586			218			3,126			(1)	387
Core funds from operations	$	101,586		$	55,424		$	291,045			$	167,377

⁽¹⁾ The loss on debt extinguishment for the nine months ended September 30, 2014 includes MAA's share of debt extinguishment costs incurred by our joint venture, Mid-America Multifamily Fund II.

FFO for the three months ended September 30, 2014 increased approximately $53.8 million from the three months ended September 30, 2013 primarily as a result of the increase in total property revenues of approximately $113.5 million discussed above that was only partially offset by the $44.9 million increase in property operating expenses as well as the $13.3 million of increased interest expense and $2.5 million of increased property management expense.

FFO for the nine months ended September 30, 2014 increased approximately $140.6 million from the nine months ended September 30, 2013 primarily as a result of the increase in total property revenues of approximately $342.0 million discussed above that was only partially offset by the $136.6 million increase in property operating expenses as well as the $43.4 million of increased interest expense and $8.7 million of increased property management expense.

Core FFO for the three months ended September 30, 2014 increased approximately $46.2 million from the three months ended September 30, 2013 primarily as a result of the increase in total property revenues of approximately $113.5 million discussed above that was only partially offset by the $44.9 million increase in property operating expenses as well as the $18.7 million of increased interest expense (excluding the impact of mark to market adjustment) and $2.5 million of increased property management expense.

Core FFO for the nine months ended September 30, 2014 increased approximately $123.7 million from the nine months ended September 30, 2013 primarily as a result of the increase in total property revenues of approximately $342.0 million discussed above that was only partially offset by the $136.6 million increase in property operating expenses as well as the $63.0 million of increased interest expense (excluding the impact of mark to market adjustment) and $8.7 million of increased property management expense.

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Trends

During the three months ended September 30, 2014, rental demand for apartments was strong, as it was during the three months ended September 30, 2013. This strength was evident on two fronts: same store average physical occupancy during the three months ended September 30, 2014 was strong, ending the quarter at 96.4% occupancy and averaging in excess of 95.6% for the quarter; while same store effective rent per unit continued to grow, up 3.2% in the three months ended September 30, 2014 as compared to the three months ended September 30, 2013. In addition, effective rent was up 3.5% for the month of September 2014 as compared to the month of September 2013. We have maintained this momentum despite job formation, one of the primary drivers of apartment demand, continuing to increase at a slower pace than a typical growth cycle.

An important part of our portfolio strategy is to maintain a broad diversity of markets across the Sunbelt region of the United States. The diversity of markets tends to mitigate exposure to economic issues in any one geographic market or area. We believe that a well-diversified portfolio, including both large and select secondary markets, will perform well in “up” cycles as well as weather “down” cycles better. As of September 30, 2014, we were invested in approximately 47 defined Metropolitan Statistical Areas, with approximately 64% of our multifamily assets, based on gross assets, in large markets and 36% of our multifamily assets in select secondary markets.

New supply of rental units entering the market remained below peak new supply delivery averages, but multifamily permitting did pick up in 2013 and has continued into 2014. We believe this permitting will ultimately lead to an increase in supply but also believe the lack of new apartments in recent years combined with demand from new households will help keep supply and demand in balance. Also, we believe that more sustainable credit terms for residential mortgages should work to favor rental demand at existing multi-family properties. Competition from condominiums reverting back to rental units, or new condominiums being converted to rental, has not been a major factor in our portfolio because most of our submarkets have not been primary areas for condominium development. We have found the same to be true for rental competition from single family homes. We have avoided committing a significant amount of capital to markets or submarkets where most of the excessive inflation in house prices occurred. We saw significant rental competition from condominiums or single family houses in only a few of our submarkets. Long term, we expect demographic trends (including the growth of prime age groups for rentals and immigration and population movement to the southeast and southwest) will continue to build apartment rental demand for our markets.

Our focus is on maintaining strong physical occupancy while increasing pricing where possible through our revenue management system. As noted above, physical occupancy ended the quarter strong while sequential effective rent growth accelerated over the quarter ended June 30, 2014. As we move into the fall leasing season, physical occupancy is strong. This puts us in a good position to maintain occupancy while maximizing pricing in the fourth quarter of 2014.

We continue to develop improved products, operating systems and procedures that we believe enable us to capture more revenues. The continued benefit of ancillary services (such as our cable saver and deposit saver programs), improved collections and utility reimbursements enable us to capture increased revenue. We also actively work on improving processes and products to reduce expenses, such as new web-sites and internet access for our residents that enable them to transact their business with us more simply and effectively.

Liquidity and Capital Resources

Net cash flow provided by operating activities increased to $323.1 million for the nine months ended September 30, 2014 from $168.8 million for the nine months ended September 30, 2013. This change was a result of various items, including merger related activities driving higher revenue as discussed above.

Net cash used in investing activities was approximately $81.4 million during the nine months ended September 30, 2014 compared to $94.4 million used in investing activities during the nine months ended September 30, 2013. The decrease in outflows is due to the factors discussed below. In the nine months ended September 30, 2014, we had acquisition cash outflows of $180.3 million compared to $89.9 million for the nine months ended September 30, 2013. We also had outflows of $71.1 million for normal capital improvements during the nine months ended September 30, 2014 compared to only $35.4 million during the nine months ended September 30, 2013. During the nine months ended September 30, 2014, we had cash outflows of $40.8 million for development activities, compared to $26.1 million for the nine months ended September 30, 2013. During the nine months ended September 30, 2014, we also had cash outflows of $12.0 million for improvements to existing real estate assets compared to $8.6 million for the nine months ended September 30, 2013. The cash outflows from investing activities were offset by an increase in cash inflows from disposition activity. During the nine months ended September 30, 2014, we had cash inflows of approximately $241.7 million, which were related to the sale of eleven properties and five outparcels. During the nine months ended September 30, 2013, we had $118.8 million of cash inflows from eight

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property sales. During the nine months ended September 30, 2014 we received distributions from real estate joint ventures of $16.0 million compared to only $8.3 million during the nine months ended September 30, 2013. Also, funding of escrow accounts for future acquisitions decreased from $57.4 million during the nine months ended September 30, 2013 to $30.5 million during the nine months ended September 30, 2014.

As of September 30, 2014, we owned 75,242,266 OP Units, comprising a 94.7% limited partnership interest in the Operating Partnership, while the remaining 4,202,123 outstanding OP Units were held by limited partners of the Operating Partnership. Holders of OP Units (other than us and our affiliates) may require us to redeem their OP Units from time to time, in which case we may, at our option, pay the redemption price either in cash (in an amount per OP Unit equal, in general, to the average closing price of our common stock on the New York Stock Exchange over a specified period prior to the redemption date) or by delivering one share of our common stock (subject to adjustment under specified circumstances) for each OP Unit so redeemed. In addition, we have registered the 4,202,123 shares of our common stock, which as of September 30, 2014, were issuable upon redemption of OP Units held by the Operating Partnership's limited partners under the Securities Act of 1933, as amended, so that those shares can be sold freely in the public markets. To the extent that additional OP Units are issued to limited partners of the Operating Partnership, we will likely register the additional shares of common stock issuable upon redemption of those OP Units under the Securities Act of 1933, as amended, so that those shares can also be sold in the public markets. If we issue shares of our common stock upon the redemption of OP Units in our Operating Partnership, sales of substantial amounts of such shares of our common stock, or the perception that these sales could occur, may adversely affect prevailing market prices for our common stock or may impair our ability to raise capital through the sale of our common stock or other equity securities.

Net cash used in financing activities was approximately $243.3 million for the nine months ended September 30, 2014 compared to $97.6 million provided by financing activities for the nine months ended September 30, 2013. During the nine months ended September 30, 2014 we paid $164.3 million in dividends and $9.2 million in distributions to noncontrolling interests compared to $88.8 million of dividends and $3.6 million of distributions paid during the nine months ended September 30, 2013. We made $258.1 million in principal payments, $253.4 million of which related to the pay-off of various notes and mortgages, during the nine months ended September 30, 2014 compared to $8.7 million of principal payments during the nine months ended September 30, 2013. In the nine months ended September 30, 2014, we had cash inflows of $396.5 million from proceeds of notes payable compared to none for the nine months ended September 30, 2013. We paid $4.2 million in deferred financing costs during the nine months ended September 30, 2014 compared to only $2.7 million during the nine months ended September 30, 2013. In the nine months ended September 30, 2014, we received proceeds of approximately $0.7 million primarily from the issuance of common stock through the optional cash feature of our DRSPP. During the nine months ended September 30, 2013, we received proceeds of approximately $25.0 million primarily through our at-the-market program, or ATM, and the DRSPP. In the nine months ended September 30, 2014, we had cash outflows of $216.2 million from the net change in credit lines compared to $177.0 million of inflows from the net change in credit lines for the nine months ended September 30, 2013. We also received proceeds of $11.9 million related to the exercise of stock options during the nine months ended September 30, 2014. There were no exercises of stock options during the nine months ended September 30, 2013.

During nine months ended September 30, 2014, we sold no shares of common stock through our ATM. This compares to 365,011 shares of common stock sold for net proceeds of approximately $24.8 million for the nine months ended September 30, 2013. As of September 30, 2014, there were 4,134,989 shares outstanding under our ATM.

The weighted average interest rate at September 30, 2014 for the $3.43 billion of debt outstanding was 3.7%, compared to the weighted average interest rate of 3.2% on $1.86 billion of debt outstanding at September 30, 2013. We utilize both conventional and tax exempt debt to help finance our activities. Borrowings are made through individual property mortgages, company-wide secured and unsecured credit facilities, and private and public unsecured notes. We utilize fixed rate borrowings, interest rate swaps and interest rate caps to manage our current and future interest rate risk. More details on our borrowings can be found in the schedules presented later in this section.

At September 30, 2014, we had secured credit facility relationships with Prudential Mortgage Capital which are credit enhanced by Fannie Mae and a $500 million unsecured facility with a syndicate of banks. Together, these credit facilities provided a total line capacity of $1.16 billion with all but $230.0 million collateralized and available to borrow at September 30, 2014. We had total borrowings outstanding under these credit facilities of $437.0 million at September 30, 2014.

Approximately 12.7% of our outstanding obligations at September 30, 2014 were borrowed through credit facilities with/or credit enhanced by Fannie Mae, also referred to as the Fannie Mae Facilities. The Fannie Mae Facilities have a combined line limit of $663.2 million, of which $437.0 million was collateralized and available to borrow at September 30, 2014. We had total borrowings outstanding under the Fannie Mae Facilities of approximately $437.0 million at September 30,

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2014. Various Fannie Mae rate traunches of the Fannie Mae Facilities mature from 2014 through 2018. The Fannie Mae Facilities provide for both fixed and variable rate borrowings. The interest rate on the majority of the variable portion is based on the Fannie Mae Discount Mortgage Backed Security, or DMBS, rate which are credit-enhanced by Fannie Mae and are typically sold every 90 days by Prudential Mortgage Capital at interest rates approximating three-month LIBOR less a spread that has averaged 0.17% over the life of the Fannie Mae Facilities, plus a credit enhancement fee of 0.49% to 0.67%. We have seen more volatility in the spread between the DMBS and three-month LIBOR since late 2007 than was historically prevalent.

On June 27, 2014, we paid off $198.2 million under our credit facility with/or credit enhanced by Freddie Mac, also referred to as the Freddie Mac Facility. As of September 30, 2014, we no longer had any borrowings outstanding through the Freddie Mac Facility.

We currently maintain a $500.0 million unsecured credit facility with fourteen banks led by KeyBank National Association (Key Bank). The Key Bank credit facility bears an interest rate of LIBOR plus a spread of 0.90% to 1.70%, currently bearing interest at 1.10%, based on an investment grade pricing grid. This facility has an accordion feature which allows for expansion up to $800.0 million. This credit facility expires in August 2017 with two separate six-month extension options after the initial maturity date. At September 30, 2014, we had $496.2 million available to be borrowed under the Key Bank credit facility agreement with zero borrowings under this facility. Approximately $3.8 million of the facility is used to support letters of credit.

Each of our credit facilities is subject to various covenants and conditions on usage, and the secured facilities are subject to periodic re-evaluation of collateral. If we were to fail to satisfy a condition to borrowing, the available credit under one or more of the facilities could not be drawn, which could adversely affect our liquidity. In the event of a reduction in real estate values the amount of available credit could be reduced. Moreover, if we were to fail to make a payment or violate a covenant under a credit facility, after applicable cure periods, one or more of our lenders could declare a default, accelerate the due date for repayment of all amounts outstanding and/or foreclose on properties securing such facilities. A default on an obligation to repay outstanding debt could also create a cross default on a separate piece of debt, whereby one or more of our lenders could accelerate the due date for repayment of all amounts outstanding and/or foreclose on properties securing the related facilities. Any such event could have a material adverse effect.

On October 16, 2013, MAALP issued $350 million in aggregate principal amount of notes, maturing on October 15, 2023 with an interest rate of 4.3% per annum (the "2023 Notes"). The purchase price paid by the initial purchasers was 99.047% of the principal amount. The 2023 Notes are general unsecured senior obligations of MAALP and rank equally in right of payment with all other senior unsecured indebtedness of MAALP. Interest on the 2023 Notes is payable on April 15 and October 15 of each year, beginning on April 15, 2014. The net proceeds from the offering after deducting the original issue discount of approximately $3.3 million and underwriting commissions and expenses of approximately $2.3 million were approximately $344.4 million. The 2023 Notes have been reflected net of discount in the consolidated balance sheet. The Company transacted three swaps totaling $150 million, which resulted in a total effective interest rate of 4.15%.

On December 13, 2013, MAALP completed a series of exchange offers (the “Exchange Offers”) pursuant to which it exchanged $154,235,000 aggregate principal amount of 6.25% Senior Notes due 2014, $169,161,000 aggregate principal amount of 5.50% Senior Notes due 2015 and $68,130,000 aggregate principal amount of 6.05% Senior Notes due 2016 (collectively, the “Existing Notes”) issued by Colonial Realty Limited Partnership, a Delaware limited partnership and wholly owned subsidiary of MAALP, for $154,235,000 aggregate principal amount of MAALP’s new 6.25% Senior Notes due 2014 (the “2014 Notes”), $169,112,000 aggregate principal amount of MAALP’s new 5.50% Senior Notes due 2015 (the “2015 Notes”) and $68,130,000 aggregate principal amount of MAALP’s new 6.05% Senior Notes due 2016 (the “2016 Notes” and together with the 2014 Notes and the 2015 Notes, the “Exchange Notes”), plus approximately $975,000 in cash.

The Exchange Notes are senior unsecured obligations of MAALP and will rank equally in right of payment with all of MAALP’s other existing and future senior unsecured indebtedness. Interest on the 2014 Notes accrued from, and including, December 15, 2013 and were payable on June 15, 2014, which was the maturity date for the 2014 Notes. Interest on the 2015 Notes will accrue from, and including, October 1, 2013 and will be payable semiannually on April 1 and October 1 of each year, beginning on April 1, 2014. Interest on the 2016 Notes accrued from, and including, September 1, 2013 and was paid on March 1, 2014. Interest payments will be payable semiannually on March 1 and September 1 of each year, beginning on March 1, 2014. In certain circumstances described below MAALP may be required to pay additional interest on the Exchange Notes.

On June 10, 2014, MAALP issued $400 million in aggregate principal amount of notes, maturing on June 15, 2024 with an interest rate of 3.75% per annum (the "2024 Notes"). The purchase price paid by the initial purchasers was 98.873% of the principal amount. The 2024 Notes are general unsecured senior obligations of MAALP and rank equally in right of payment with all other senior unsecured indebtedness of MAALP. Interest on the 2024 Notes is payable on June 15 and

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December 15 of each year, beginning on December 15, 2014. The net proceeds from the offering after deducting the original issue discount of approximately $4.5 million and underwriting commissions and expenses of approximately $2.6 million was approximately $392.9 million. The 2024 Notes have been reflected net of discount in the consolidated balance sheet. The Company entered into five forward swaps totaling $250 million, which resulted in a total effective interest rate of 3.98%.

The Indenture under which the 2023 and 2024 notes were issued contains certain covenants that, among other things, limit the ability of MAALP and its subsidiaries to incur secured and unsecured indebtedness if not in pro forma compliance with the following negative covenants: (1) total leverage not to exceed 60% of adjusted total assets, (2) secured leverage not to exceed 40% of adjusted total assets and (3) a fixed charge coverage ratio of at least 1.50 to 1. In addition, MAALP is required to maintain at all times unencumbered consolidated total assets of not less than 150% of the aggregate principal amount of its outstanding unsecured debt. At September 30, 2014, MAALP was in compliance with each of these financial covenants.

All of the Existing Notes tendered into the Exchange Offers were cancelled in connection with the settlement of the Exchange Offers. In connection with the issuance and sale of the Exchange Notes, MAALP also entered into three separate registration rights agreements, each dated as of December 13, 2013, and each with J.P. Morgan Securities LLC, the dealer manager in the Exchange Offers (the “Registration Rights Agreements”). Under the Registration Rights Agreements, MAALP agreed to use commercially reasonable efforts to complete exchange offers registered under the Securities Act pursuant to which MAALP will offer to issue new exchange notes containing terms substantially similar in all material respects to the Exchange Notes (except that the exchange notes will not contain terms with respect to transfer restrictions or any increase in annual interest rate) in exchange for the Exchange Notes. MAALP also agreed, if it determines that a registered exchange offer is not available or specified other circumstances occur, to use commercially reasonable efforts to file and have become effective a shelf registration statement relating to resales of the Exchange Notes. MAALP will be obligated to pay additional interest of up to 0.50% per annum on the Exchange Notes if it does not complete the exchange offers within 270 days after the issue date of the Exchange Notes and in other specified circumstances. We completed the exchange within the 270 day window and did not incur the additional interest.

On October 1, 2013, we acquired the Colonial term loan agreements with Wells Fargo and U.S. Bank Association of $250 million and $150 million, respectively. The Wells Fargo term loan bore interest at a rate of LIBOR plus a spread of 1.65% to 2.90% based on the credit ratings of our unsecured debt from time to time. The loan matures on August 1, 2018. On July 25, 2014, we repriced the Wells Fargo term loan, and it now bears interest at a rate of LIBOR plus a spread of 0.90% to 1.90% based on the credit ratings of our unsecured debt from time to time. The maturity date was not changed. As of September 30, 2014, the loan is bearing interest at a rate of LIBOR plus 1.15%. The U.S. Bank National Association term loan bears interest at a rate of LIBOR plus a spread of 1.10% to 2.05% based on the credit ratings of our unsecured debt from time to time and matures on May 11, 2017. As of September 30, 2014, it is bearing interest at a rate of LIBOR plus 1.40%. Including our term loan agreement with Key Bank and J.P. Morgan, we had total borrowings of $550 million outstanding under these term loan agreements at September 30, 2014.

As of September 30, 2014, we had entered into interest rate swaps totaling a notional amount of $625.0 million. To date, these swaps have proven to be highly effective hedges. We had also entered into interest rate cap agreements totaling a notional amount of approximately $255.3 million as of September 30, 2014.

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The following schedule outlines our variable versus fixed rate debt, including the impact of interest rate swaps and caps, outstanding as of September 30, 2014 (dollars in thousands):

	Principal Balance		Average Years to Rate Maturity	Effective Rate
SECURED DEBT
Conventional - Fixed Rate or Swapped	$	1,215,496	4.8	4.1	%
Conventional - Variable Rate - Capped (1)	192,096		1.7	1.1	%
Tax-free - Variable Rate - Capped (1)	90,415		3.4	0.9	%
Total Fixed or Hedged Rate Maturity	$	1,498,007	4.3	3.5	%
Conventional - Variable Rate (2)	56,585		0.1	0.7	%
Total Secured Rate Maturity	$	1,554,592	4.2	3.4	%
UNSECURED DEBT
Fixed Rate or Swapped	$	1,875,422	5.2	4.0	%
Total Unsecured Rate Maturity	$	1,875,422	5.2	4.0	%
TOTAL DEBT RATE MATURITY	$	3,430,014	4.7	3.7	%
TOTAL FIXED OR HEDGED DEBT RATE MATURITY	$	3,373,429	4.8	3.8	%

(1) The effective rate represents the average rate on the underlying variable debt unless the cap rates are reached, which average 4.6% of LIBOR for conventional caps and 6% of SIFMA for tax-free caps.

(2) Includes $27 million of mortgages with an imbedded cap at a 7% all-in interest rate.

The following schedule outlines the interest rate maturities of our outstanding debt as of September 30, 2014 (dollars in thousands):

	Fixed Rate Debt		Interest Rate Swaps		Total Fixed Rate Balances		Contract Rate		Interest Rate Caps		Total Fixed or Hedged
2014	$	—	$	—	$	—	—	%	$	—	$	—
2015	252,262		75,000		327,262		5.3	%	51,896		379,158
2016	115,834		—		115,834		5.2	%	104,480		220,314
2017	131,723		300,000		431,723		2.2	%	66,495		498,218
2018	103,149		250,000		353,149		3.2	%	32,945		386,094
Thereafter	1,862,950		—		1,862,950		4.8	%	26,695		1,889,645
Total	$	2,465,918	$	625,000	$	3,090,918	4.3	%	$	282,511	$	3,373,429

The following schedule outlines the contract maturities of our outstanding debt as of September 30, 2014 (dollars in thousands):

	Credit Facilities
	Fannie Mae Secured		Key Bank Unsecured		Other Secured		Other Unsecured		Total
2014	$	—	$	—	$	—	$	—	$	—
2015	105,785		—		71,960		192,015		$	369,760
2016	80,000		—		51,183		79,682		$	210,865
2017	80,000		—		63,534		318,190		$	461,724
2018	80,000		—		52,263		300,909		$	433,172
Thereafter	91,215		—		878,652		984,626		$	1,954,493
Total	$	437,000	$	—	$	1,117,592	$	1,875,422	$	3,430,014

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We believe that we have adequate resources to fund our current operations, annual refurbishment of our properties, and incremental investment in new apartment properties. We rely on the efficient operation of the financial markets to refinance debt maturities, and on rate renewals for Fannie Mae. Fannie Mae provided credit enhancement for approximately $437.0 million of our outstanding debt through credit facilities as of September 30, 2014.

The interest rate markets for Fannie Mae DMBS, which in our experience are highly liquid and highly correlated with three-month LIBOR interest rates, are also an important component of our liquidity and interest rate swap effectiveness. Prudential Mortgage Capital, a Delegated Underwriting and Servicing (DUS) lender for Fannie Mae, markets 90-day Fannie Mae Discount Mortgage Backed Securities monthly, and is obligated to advance funds to us at DMBS rates plus a credit spread under the terms of the credit agreements between Prudential and us.

For the quarter ended September 30, 2014, our net cash provided by operating activities was in excess of covering funding of normal capital improvements to existing real estate assets, distributions to unitholders, and dividends paid on common and preferred shares by approximately $78.4 million, as compared to $41.0 million for the same period in 2013. While we had sufficient liquidity to permit distributions at current rates through additional borrowings, if necessary, any significant deterioration in operations could result in our financial resources being insufficient to pay distributions to shareholders at the current rate, in which event we would be required to reduce the distribution rate.

The following table reflects our total contractual cash obligations which consist of our long-term debt, development fees and operating leases as of September 30, 2014 (dollars in thousands):

Contractual Obligations (1)	2014		2015		2016		2017		2018		Thereafter		Total
Long-Term Debt Obligations (2)	$	2,945	$	395,576	$	205,429	$	469,863	$	392,639	$	1,963,562	$	3,430,014
Fixed Rate or
Swapped Interest (3)	33,804		97,179		82,335		70,935		62,809		218,596		565,658
Purchase Obligations (4)	936		—		—		—		—		—		936
Operating Lease Obligations	62		249		249		244		174		—		978
Total	$	37,747	$	493,004	$	288,013	$	541,042	$	455,622	$	2,182,158	$	3,997,586

(1) Fixed rate and swapped interest are shown in this table. The average interest rates of variable rate debt are shown in preceding tables.

(2) Represents principal payments.

(3) Swapped interest is subject to the ineffective portion of cash flow hedges as described in Note 8 to the financial statements. 

(4) Represents development fees.

Off-Balance Sheet Arrangements

At September 30, 2014, and 2013, we did not have any relationships with unconsolidated entities or financial partnerships established for the purpose of facilitating off-balance sheet arrangements or other contractually narrow or limited purposes. Mid-America Multifamily Fund I, LLC, was established to acquire $500 million of apartment communities with redevelopment upside offering value creation opportunity through capital improvements, operating enhancements and restructuring in-place financing. As of September 30, 2014, Mid-America Multifamily Fund I, LLC was legally dissolved and owned zero properties. Mid-America Multifamily Fund II, LLC, was established to acquire $250 million of apartment communities with redevelopment upside offering value creation opportunity through capital improvements, operating enhancements and restructuring in-place financing. As of September 30, 2014, Mid-America Multifamily Fund II, LLC owned zero properties. In addition, we do not engage in trading activities involving non-exchange traded contracts. As such, we are not materially exposed to any financing, liquidity, market, or credit risk that could arise if we had engaged in such relationships. We do not have any relationships or transactions with persons or entities that derive benefits from their non-independent relationships with us or our related parties other than those disclosed in Item 8. Financial Statements and Supplementary Data – Notes to Consolidated Financial Statements, Note 17 in our Annual Report on Form 10-K filed with the SEC on February 21, 2014.

Our investments in our real estate joint ventures are unconsolidated and are recorded using the equity method for the joint ventures in which we do not have a controlling interest.

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Insurance

We renegotiated our insurance programs effective July 1, 2014. We believe that the property and casualty insurance program in place provides appropriate insurance coverage for financial protection against insurable risks such that any insurable loss experienced that can be reasonably anticipated would not have a significant impact on our liquidity, financial position or results of operation.

Inflation

Our resident leases at the apartment communities allow, at the time of renewal, for adjustments in the rent payable thereunder, and thus may enable us to seek rent increases. Almost all leases are for one year or less. The short-term nature of these leases generally serves to reduce our risk to adverse effects of inflation.

Impact of Recently Issued Accounting Standards

In August 2014, the FASB issued ASU 2014-15, Disclosure of Uncertainties about an Entity's Ability to Continue as a Going Concern. ASU 2014-15 requires an entity's management to evaluate whether there are conditions or events, considered in the aggregate, that raise substantial doubt about the entity's ability to continue as a going concern within one year after the date that the financial statements are issued. If substantial doubt exists, the entity must disclose the principal conditions or events that raised the substantial doubt, management's evaluation of the significance of these conditions, and management's plan for alleviating the substantial doubt about the entity's ability to continue as a going concern. ASU 2014-15 is effective for annual periods ending after December 15, 2016; however, early adoption is permitted. The Company is currently in the process of evaluating the impact of the ASU, but does not expect the adoption of this ASU to have a material impact on our consolidated financial position or results of operations taken as a whole.

In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers, which amended the existing accounting standards for revenue recognition. ASU 2014-09 establishes principles for recognizing revenue upon the transfer of promised goods or services to customers, in an amount that reflects the expected consideration received in exchange for those goods or services. It is effective for annual reporting periods beginning after December 15, 2016. Early adoption is not permitted. The amendments may be applied retrospectively to each prior period presented or retrospectively with the cumulative effect recognized as of the date of initial application. The Company is currently in the process of evaluating the impact of adoption of the ASU on its consolidated financial condition and results of operations taken as a whole, but does not expect the impact to be material.

In April 2014, the FASB issued ASU No. 2014-08, Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity. ASU 2014-08 raises the threshold for disposals to qualify as discontinued operations. It also requires additional disclosures for discontinued operations and new disclosures for individually material disposal transactions that do not meet the definition of a discontinued operation. The ASU is effective for fiscal years beginning after December 15, 2014, and interim periods within those years; however, early adoption is permitted beginning in the first quarter of 2014. We adopted ASU 2014-08 during the period ending March 31, 2014. The adoption of ASU 2014-08 required us to not classify certain disposals occurring during 2014 as discontinued operations.

In January 2013, the FASB issued ASU No. 2013-01, Clarifying the Scope of Disclosures about Offsetting Assets and Liabilities. ASU 2013-01 clarifies that the scope of ASU 2011-11, Disclosures about Offsetting Assets and Liabilities, would apply to derivatives accounted for in accordance with FASB ASC 815, Derivatives and Hedging, including bifurcated embedded derivatives, repurchase agreements and reverse repurchase agreements, and securities borrowing and securities lending transactions that are either offset in accordance with ASC 210-20-45 or ASC 815-10-45 or subject to an enforceable master netting arrangement or similar agreement. This ASU is effective for fiscal years beginning on or after January 1, 2013 and interim periods within those annual periods. We adopted ASU 2013-01 during the period ended March 31, 2013. The adoption of ASU 2013-01 has not had a material impact on our consolidated financial condition or results of operations taken as a whole.

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Item 3.    Quantitative and Qualitative Disclosures About Market Risk.

We are exposed to interest rate changes associated with our credit facilities and other variable rate debt as well as refinancing risk on our fixed rate debt. Our involvement with derivative financial instruments is limited to managing our exposure to changes in interest rates and we do not expect to use them for trading or other speculative purposes.

There have been no material changes in our market risk as disclosed in the Annual Report on Form 10-K filed with the SEC on February 21, 2014.

Item 4.   Controls and Procedures.

Management’s Evaluation of Disclosure Controls and Procedures

Our management, with the participation of our principal executive and financial officers, has evaluated the effectiveness of our disclosure controls and procedures in ensuring that the information required to be disclosed in our filings under the Securities Exchange Act of 1934 is recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms, including ensuring that such information is accumulated and communicated to our management as appropriate to allow timely decisions regarding required disclosure. Based on such evaluation, our principal executive and financial officers have concluded that such disclosure controls and procedures were effective as of September 30, 2014 (the end of the period covered by this Quarterly Report on Form 10-Q).

Changes in Internal Controls

During the quarter ended September 30, 2014, there were no changes in our internal control over financial reporting that materially affected, or that are reasonably likely to materially affect, our internal control over financial reporting.

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PART II – OTHER INFORMATION

Item 1.      Legal Proceedings.

The Company (by virtue of its merger with Colonial) and Colonial LP along with multiple other parties, are named defendants in lawsuits arising out of alleged construction deficiencies with respect to condominium units at Regatta at James Island in Charleston, South Carolina. Regatta at James Island property was developed by certain of the Company's subsidiaries prior to MAA's merger with Colonial and constructed by Colonial Construction Services, LLC. The condominiums were constructed in 2006 and all 212 units were sold. The lawsuits, one filed on behalf of the condominium homeowners association and one filed by three of the unit owners (purportedly on behalf of all unit owners), were filed in South Carolina state court (Charleston County) in August 2012, against various parties involved in the development and construction of the Regatta at James Island property, including the contractors, subcontractors, architect, developer, and product manufacturers. The plaintiffs are seeking damages resulting primarily from alleged construction deficiencies, but the amount plaintiffs seek to recover has not been disclosed. The lawsuits are currently in discovery. The Company is continuing to investigate the matter and evaluate its options and intends to vigorously defend itself against these claims. No assurance can be given that the matter will be resolved favorably to the Company. The Companyhas included in its loss contingency an estimate of probable loss in connection with this matter, but currently cannot reasonably estimate any further possible loss, or any range of reasonably possible loss, in connection with this matter.

In addition, the Company is subject to various other legal proceedings and claims that arise in the ordinary course of its business operations. Matters which arise out of allegations of bodily injury, property damage, and employment practices are generally covered by insurance. While the resolution of these other matters cannot be predicted with certainty, management currently believes the final outcome of such matters will not have a material adverse effect on the financial position, results of operations or cash flows of the Company.

Loss Contingencies

The outcomes of the claims, disputes and legal proceedings described or referenced above are subject to significant uncertainty. The Company records an accrual for loss contingencies when a loss is probable and the amount of the loss can be reasonably estimated. The Company reviews these accruals quarterly and makes revisions based on changes in facts and circumstances. When a loss contingency is not both probable and reasonably estimable, the Company does not accrue the loss. However, if the unrecorded loss (or an additional loss in excess of the accrual) is at least a reasonable possibility and material, then the Company discloses a reasonable estimate of the possible loss, or range of loss, if such reasonable estimate can be made. If the Company cannot make a reasonable estimate of the possible loss, or range of loss, then that is disclosed.

The assessment of whether a loss is probable or a reasonable possibility, and whether the loss or range of loss is reasonably estimable, often involve a series of complex judgments about future events. Among the factors that the Company considers in this assessment, including with respect to the matters disclosed, are the nature of existing legal proceedings and claims, the asserted or possible damages or loss contingency (if reasonably estimable), the progress of the matter, existing law and precedent, the opinions or views of legal counsel and other advisers, the Company's experience in similar matters, the facts available to the Company at the time of assessment, and how the Company intends to respond, or has responded, to the proceeding or claim. The Company's assessment of these factors may change over time as individual proceedings or claims progress. For matters where the Company is not currently able to reasonably estimate a range of reasonably possible loss, the factors that have contributed to this determination include the following: (i) the damages sought are indeterminate; (ii) the proceedings are in the early stages; (iii) the matters involve novel or unsettled legal theories or a large or uncertain number of actual or potential cases or parties; and/or (iv) discussions with the parties in matters that are expected ultimately to be resolved through negotiation and settlement have not reached the point where the Company believes a reasonable estimate of loss, or range of loss, can be made. In such instances, the Company believes that there is considerable uncertainty regarding the timing or ultimate resolution of such matters, including a possible eventual loss or business impact, if any.

Item 1A.   Risk Factors.

There have been no material changes to the risk factors that were discussed in Part I, Item 1A of the Company's and the Operating Partnership's Annual Report on Form 10-K for the year ended December 31, 2013.

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Item 2.   Purchases of Equity Securities

The following chart shows our repurchases of shares for the three-month period ended September 30, 2014:

MAA Purchases of Equity Securities

Period	Total Number of Shares Purchased	Average Price Paid per Share		Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs	Maximum Number of Shares That May Yet be Purchased Under the Plans or Programs (1)
July 1, 2014 - July 31, 2014	—	$	—	—	2,138,000
August 1, 2014 - August 31, 2014	—	$	—	—	2,138,000
September 1, 2014 - September 30, 2014	—	$	—	—	2,138,000
Total	—	$	—	—	2,138,000

(1) This number reflects the amount of shares of MAA's common stock that were available for purchase under our 4,000,000 share repurchase program authorized by our Board of Directors in 1999.

Item 3.  Defaults Upon Senior Securities.

Not Applicable.

Item 4.  Mine Safety Disclosures.

Not applicable.

Item 5.  Other Information.

Not Applicable.

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Item 6.         Exhibits.

(a) The following exhibits are filed as part of this Quarterly Report.

Exhibit Number	Exhibit Description
12.1	Consolidated Ratio of Earnings to Fixed charges for MAA
12.2	Consolidated Ratio of Earnings to Fixed charges for MAALP
31.1	Certification of Chief Executive Officer of MAA Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
31.2	Certification of Chief Financial Officer of MAA Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
31.3	Certification of Chief Executive Officer of MAA, in its capacity as general partner of MAALP, Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
31.4	Certification of Chief Financial Officer of MAA, in its capacity as general partner of MAALP, Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
32.1	Certification of Chief Executive Officer of MAA Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
32.2	Certification of Chief Financial Officer of MAA Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
32.3	Certification of Chief Executive Officer of MAA, in its capacity as general partner of MAALP, Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
32.4	Certification of Chief Financial Officer of MAA, in its capacity as general partner of MAALP, Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
101	The following financial information from Mid-America Apartment Communities, Inc.’s (MAA) and Mid-America Apartments, L.P.'s (MAALP) Quarterly Report on Form 10-Q for the period ended September 30, 2014, filed with the SEC on October 31, 2014, formatted in Extensible Business Reporting Language (XBRL): (i) the Condensed Consolidated Balance Sheets as of September 30, 2014 (Unaudited) and December 31, 2013 (Unaudited); (ii) the Condensed Consolidated Statements of Operations for the three and nine months ended September 30, 2014 (Unaudited) and 2013 (Unaudited); (iii) the Condensed Consolidated Statements of Comprehensive Income for the three and nine months ended September 30, 2014 (Unaudited) and 2013 (Unaudited); (iv) the Condensed Consolidated Statements of Cash Flows for the nine months ended September 30, 2014 (Unaudited) and 2013 (Unaudited); and (v) Notes to Condensed Consolidated Financial Statements, tagged as blocks of text (Unaudited).

55

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

		MID-AMERICA APARTMENT COMMUNITIES, INC.
Date:	October 31, 2014	/s/Albert M. Campbell, III
		Albert M. Campbell, III
		Executive Vice President and Chief Financial Officer
		(Principal Financial and Accounting Officer)

56

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

		MID-AMERICA APARTMENTS, L.P.
		a Tennessee Limited Partnership
	By:	Mid-America Apartment Communities, Inc., its general partner
Date:	October 31, 2014	/s/Albert M. Campbell, III
		Albert M. Campbell, III
		Executive Vice President and Chief Financial Officer
		(Principal Financial and Accounting Officer)

57

EXHIBIT INDEX

Exhibit Number	Exhibit Description
12.1	Consolidated Ratio of Earnings to Fixed charges for MAA
12.2	Consolidated Ratio of Earnings to Fixed charges for MAALP
31.1	Certification of Chief Executive Officer of MAA Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
31.2	Certification of Chief Financial Officer of MAA Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
31.3	Certification of Chief Executive Officer of MAA, in its capacity as general partner of MAALP, Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
31.4	Certification of Chief Financial Officer of MAA, in its capacity as general partner of MAALP, Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
32.1	Certification of Chief Executive Officer of MAA Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
32.2	Certification of Chief Financial Officer of MAA Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
32.3	Certification of Chief Executive Officer of MAA, in its capacity as general partner of MAALP, Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
32.4	Certification of Chief Financial Officer of MAA, in its capacity as general partner of MAALP, Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
101	The following financial information from Mid-America Apartment Communities, Inc.’s (MAA) and Mid-America Apartments, L.P.'s (MAALP) Quarterly Report on Form 10-Q for the period ended September 30, 2014, filed with the SEC on October 31, 2014, formatted in Extensible Business Reporting Language (XBRL): (i) the Condensed Consolidated Balance Sheets as of September 30, 2014 (Unaudited) and December 31, 2013 (Unaudited); (ii) the Condensed Consolidated Statements of Operations for the three and nine months ended September 30, 2014 (Unaudited) and 2013 (Unaudited); (iii) the Condensed Consolidated Statements of Comprehensive Income for the three and nine months ended September 30, 2014 (Unaudited) and 2013 (Unaudited); (iv) the Condensed Consolidated Statements of Cash Flows for the nine months ended September 30, 2014 (Unaudited) and 2013 (Unaudited); and (v) Notes to Condensed Consolidated Financial Statements, tagged as blocks of text (Unaudited).

58

EX-12.1

EXHIBIT 12.1

Mid-America Apartment Communities, Inc.

Computation of Ratio of Earnings to Fixed Charges

(Dollars in thousands)

	Three months ended September 30,						Nine months ended September 30,
	2014			2013			2014			2013
Earnings:
Income from continuing operations	$	70,331		$	16,297		$	113,088		$	52,734
Equity in income of unconsolidated entities	(3,124		)	(60		)	(6,019		)	(161		)
Income tax expense	442			223			1,235			669
Income from continuing operations before equity in income of unconsolidated entities and income tax expense	67,649			16,460			108,304			53,242
Add:
Distribution of income from investments in unconsolidated entities	4,423			114			15,964			8,311
Fixed charges, less preferred distribution requirement of consolidated subsidiaries	29,654			15,989			93,828			49,202
Deduct:
Capitalized interest	403			246			1,253			1,118
Total Earnings (A)	$	101,323		$	32,317		$	216,843		$	109,637
Fixed charges and preferred dividends:
Interest expense	$	28,251		$	14,923		$	89,090		$	45,657
Amortization of deferred financing costs	1,000			820			3,485			2,427
Capitalized interest	403			246			1,253			1,118
Total Fixed Charges (B)	$	29,654		$	15,989		$	93,828		$	49,202
Preferred dividends, including redemption costs	—			—			—			—
Total Fixed Charges and Stock Dividends (C)	$	29,654		$	15,989		$	93,828		$	49,202
Ratio of Earnings to Fixed Charges (A/B)	3.4 x			2.0 x			2.3 x			2.2 x
Ratio of Earnings to Fixed Charges and Preferred Dividends (A/C)	3.4 x			2.0 x			2.3 x			2.2 x

EX-12.2

EXHIBIT 12.2

Mid-America Apartments, L.P.

Computation of Ratio of Earnings to Fixed Charges

(Dollars in thousands)

	Three months ended September 30,						Nine months ended September 30,
	2014			2013			2014			2013
Earnings:
Income from continuing operations	$	70,331		$	16,297		$	113,088		$	52,734
Equity in income of unconsolidated entities	(3,124		)	(60		)	(6,019		)	(161		)
Income tax expense	442			223			1,235			669
Income from continuing operations before equity in income of unconsolidated entities and income tax expense	67,649			16,460			108,304			53,242
Add:
Distribution of income from investments in unconsolidated entities	4,423			114			15,964			8,311
Fixed charges, less preferred distribution requirement of consolidated subsidiaries	29,654			15,989			93,828			49,202
Deduct:
Capitalized interest	403			246			1,253			1,118
Total Earnings (A)	$	101,323		$	32,317		$	216,843		$	109,637
Fixed charges and preferred dividends:
Interest expense	$	28,251		$	14,923		$	89,090		$	45,657
Amortization of deferred financing costs	1,000			820			3,485			2,427
Capitalized interest	403			246			1,253			1,118
Total Fixed Charges (B)	$	29,654		$	15,989		$	93,828		$	49,202
Preferred dividends, including redemption costs	—			—			—			—
Total Fixed Charges and Stock Dividends (C)	$	29,654		$	15,989		$	93,828		$	49,202
Ratio of Earnings to Fixed Charges (A/B)	3.4 x			2.0 x			2.3 x			2.2 x
Ratio of Earnings to Fixed Charges and Preferred Dividends (A/C)	3.4 x			2.0 x			2.3 x			2.2 x

EX-31.1

EXHIBIT 31.1

CERTIFICATION

I, H. Eric Bolton, Jr., certify that:

1.    I have reviewed this quarterly report on Form 10-Q of Mid-America Apartment Communities, Inc.;

2.    Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.    Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.    The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5.    The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date:	October 31, 2014	/s/ H. Eric Bolton, Jr.
		H. Eric Bolton, Jr.
		Chief Executive Officer

EX-31.2

EXHIBIT 31.2

CERTIFICATION

I, Albert M. Campbell, III, certify that:

1.    I have reviewed this quarterly report on Form 10-Q of Mid-America Apartment Communities, Inc.;

2.    Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.    Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.    The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5.    The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date:	October 31, 2014	/s/ Albert M. Campbell, III
		Albert M. Campbell, III
		Chief Financial Officer

EX-31.3

EXHIBIT 31.3

CERTIFICATION

I, H. Eric Bolton, Jr., certify that:

1.    I have reviewed this quarterly report on Form 10-Q of Mid-America Apartments, L.P.;

2.    Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.    Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.    The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5.    The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date:	October 31, 2014	/s/ H. Eric Bolton, Jr.
		H. Eric Bolton, Jr.
		Chief Executive Officer of Mid-America Apartment Communities, Inc., general partner of Mid-America Apartments, L.P.

EX-31.4

EXHIBIT 31.4

CERTIFICATION

I, Albert M. Campbell, III, certify that:

1.    I have reviewed this quarterly report on Form 10-Q of Mid-America Apartments, L.P.;

2.    Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.    Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.    The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5.    The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date:	October 31, 2014	/s/ Albert M. Campbell, III
		Albert M. Campbell, III
		Chief Financial Officer of Mid-America Apartment Communities, Inc., general partner of Mid-America Apartments, L.P.

EX-32.1

EXHIBIT 32.1

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Mid-America Apartment Communities, Inc. (the “Company”) on Form 10-Q for the period ended September 30, 2014, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, H. Eric Bolton, Jr., President and Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ H. Eric Bolton, Jr.

H. Eric Bolton, Jr.

Chief Executive Officer

October 31, 2014

EX-32.2

EXHIBIT 32.2

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Mid-America Apartment Communities, Inc. (the “Company”) on Form 10-Q for the period ended September 30, 2014, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Albert M. Campbell, III, Executive Vice President and Chief Financial Officer of the Company, certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ Albert M. Campbell, III

Albert M. Campbell, III

Chief Financial Officer

October 31, 2014

EX-32.3

EXHIBIT 32.3

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Mid-America Apartments, L.P. (the “Operating Partnership”) on Form 10-Q for the period ended September 30, 2014, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, H. Eric Bolton, Jr., President and Chief Executive Officer of Mid-America Apartment Communities, Inc., general partner of the Operating Partnership, certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Operating Partnership.

/s/ H. Eric Bolton, Jr.

H. Eric Bolton, Jr.

Chief Executive Officer of Mid-America Apartment Communities, Inc., general partner of Mid-America Apartments, L.P.

October 31, 2014

EX-32.4

EXHIBIT 32.4

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Mid-America Apartments, L.P. (the “Operating Partnership”) on Form 10-Q for the period ended September 30, 2014, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Albert M. Campbell, III, Executive Vice President and Chief Financial Officer of Mid-America Apartment Communities, Inc., general partner of the Operating Partnership, certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Operating Partnership.

/s/ Albert M. Campbell, III

Albert M. Campbell, III

Chief Financial Officer of Mid-America Apartment Communities, Inc., general partner of Mid-America Apartments, L.P.

October 31, 2014

XML

Business Combinations (Textual) (Details) (USD $)	9 Months Ended
	Sep. 30, 2014
Business Acquisition [Line Items]
Business Combinations, Other Consideration	$ 7,300,000
Stock Issued During Period, Shares, Acquisitions	31,916,765
Parent Company [Member]
Business Acquisition [Line Items]
Business Combination, Merger and Integration Related Expenses	10,300,000
Parent Company [Member] | Colonial [Member]
Business Acquisition [Line Items]
Real Estate Acquired, Number of Units	34,370
Number of Apartment Communities Acquired in Real Estate Property	115
Number of Commercial Properties Acquired in Real Estate Property	4
Business Acquisition, Cost of Acquired Entity, Purchase Price	$ 2,162,876,000
Share Price	$ 62.56
Stock Issued During Period, Shares, Acquisitions	31,900,000
Noncontrolling Interest [Member]
Business Acquisition [Line Items]
Stock Issued During Period, Shares, Acquisitions	2,574,631
Commercial [Member] | Parent Company [Member]
Business Acquisition [Line Items]
Square Footage of Real Estate Property	806,000

XML

Fair Value Disclosure of Financial Instruments - Additional Information (Detail) (USD $) In Billions, unless otherwise specified					9 Months Ended
	Sep. 30, 2014 Fixed Rate Debt	Dec. 31, 2013 Fixed Rate Debt	Sep. 30, 2014 Variable Rate Debt	Dec. 31, 2013 Variable Rate Debt	Sep. 30, 2014 Minimum [Member] Secured Debt [Member]	Sep. 30, 2014 Maximum [Member] Secured Debt [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Notes Payable, fair value	$ 2.49	$ 2.30	$ 0.88	$ 1.12
Notes Payable Excluding Interest Rate Swaps and Cap Agreements	$ 2.46	$ 2.29	$ 0.97	$ 1.18
Debt Renewal Period					30 days	90 days

XML

Debt Structure (Detail) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2014	Dec. 31, 2013
Debt Instrument [Line Items]
Total Outstanding Debt	$ 3,430,014	$ 3,470,000
Effective Rate	3.70%
Contract Maturity	Nov. 14, 2019
Secured Debt [Member]
Debt Instrument [Line Items]
Total Outstanding Debt	1,554,592
Effective Rate	3.40%
Contract Maturity	May 27, 2019
Secured Debt [Member] | Fixed Rate Debt
Debt Instrument [Line Items]
Total Outstanding Debt	1,215,496
Effective Rate	4.10%
Contract Maturity	Jan. 01, 2019
Secured Debt [Member] | Fixed Rate Debt | Individual property mortgages
Debt Instrument [Line Items]
Total Outstanding Debt	1,090,496
Effective Rate	4.00%
Contract Maturity	May 05, 2019
Secured Debt [Member] | Fixed Rate Debt | FNMA conventional credit facilities | FNMA
Debt Instrument [Line Items]
Total Outstanding Debt	50,000
Effective Rate	4.70%
Contract Maturity	Mar. 31, 2017
Secured Debt [Member] | Fixed Rate Debt | LIBOR-based interest rate swaps
Debt Instrument [Line Items]
Total Outstanding Debt	75,000
Effective Rate	4.80%
Contract Maturity	Mar. 31, 2015
Secured Debt [Member] | Variable Rate Debt
Debt Instrument [Line Items]
Total Outstanding Debt	339,096
Effective Rate	1.00%
Contract Maturity	Nov. 02, 2020
Secured Debt [Member] | Variable Rate Debt | FNMA conventional credit facilities | FNMA
Debt Instrument [Line Items]
Total Outstanding Debt	221,585
Effective Rate	0.70%
Contract Maturity	Jan. 27, 2017
Secured Debt [Member] | Variable Rate Debt | FNMA tax-free credit facilities | FNMA
Debt Instrument [Line Items]
Total Outstanding Debt	90,415
Effective Rate	0.90%
Contract Maturity	Jul. 23, 2031
Secured Debt [Member] | Variable Rate Debt | Freddie Mac mortgages | Freddie Mac
Debt Instrument [Line Items]
Total Outstanding Debt	27,096
Effective Rate	3.40%
Contract Maturity	Oct. 31, 2015
Unsecured Debt [Member]
Debt Instrument [Line Items]
Total Outstanding Debt	1,875,422
Effective Rate	4.00%
Contract Maturity	Sep. 24, 2020
Unsecured Debt [Member] | Fixed Rate Debt | Term loans fixed with swaps
Debt Instrument [Line Items]
Total Outstanding Debt	550,000
Effective Rate	3.10%
Contract Maturity	Nov. 10, 2017
Unsecured Debt [Member] | Fixed Rate Debt | Senior Notes
Debt Instrument [Line Items]
Total Outstanding Debt	$ 1,325,422
Effective Rate	4.50%
Contract Maturity	Dec. 03, 2021

XML

Assets and Liabilities Measured at Fair Value on a Recurring Basis (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative financial instruments - assets	$ 131	$ 444
Derivative financial instruments - liabilities	13,132	20,015
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative financial instruments - assets	0	0
Derivative financial instruments - liabilities	0	0
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative financial instruments - assets	131	444
Derivative financial instruments - liabilities	13,132	20,015
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative financial instruments - assets	0	0
Derivative financial instruments - liabilities	$ 0	$ 0

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MAALP Capital Parenthetical (Details) (Limited Partner [Member], USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Limited Partner [Member]
Capital Disclosure [Line Items]
Distribution Made to Limited Partner, Distributions Declared, Per Unit	$ 0.7300	$ 0.6950	$ 2.1900	$ 2.0850

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Notes Payable (Tables)

9 Months Ended

Sep. 30, 2014

Notes To Financial Statements [Abstract]

Debt Structure [Table Text Block]

The following table summarizes our outstanding debt structure as of September 30, 2014 (dollars in thousands):

	Borrowed Balance		Effective Rate		Average Contract Maturity
Fixed Rate Secured Debt
Individual property mortgages	$	1,090,496	4.0	%	5/5/2019
FNMA conventional credit facilities	50,000		4.7	%	3/31/2017
Credit facility balances with:
LIBOR-based interest rate swaps	75,000		4.8	%	3/31/2015
Total fixed rate secured debt	$	1,215,496	4.1	%	1/1/2019
Variable Rate Secured Debt (1)
FNMA conventional credit facilities	$	221,585	0.7	%	1/27/2017
FNMA tax-free credit facilities	90,415		0.9	%	7/23/2031
Freddie Mac mortgages	27,096		3.4	%	10/31/2015
Total variable rate secured debt	$	339,096	1.0	%	11/2/2020
Total Secured Debt	$	1,554,592	3.4	%	5/27/2019
Unsecured Debt
Term loans fixed with swaps	$	550,000	3.1	%	11/10/2017
Fixed rate senior bonds	1,325,422		4.5	%	12/3/2021
Total Unsecured Debt	$	1,875,422	4.0	%	9/24/2020
Total Outstanding Debt	$	3,430,014	3.7	%	11/14/2019

⁽¹⁾ Includes capped balances.

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Partners' Capital of Mid-America Apartments, L.P. (Details) (USD $)	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Schedule of Capital Structure [Line Items]
Operating partnership units outstanding	79,444,389	44,446,933
General Partners' Capital Account, Units Outstanding	75,242,266	42,744,978
Limited Liability Company (LLC) or Limited Partnership (LP), Managing Member or General Partner, Ownership Interest	94.70%	96.20%
Limited Partners' Capital Account, Units Outstanding	4,202,123	1,701,955
Units Issued During Period, Acquisitions	34,491,396
Noncontrolling Interest [Member]
Schedule of Capital Structure [Line Items]
Common Shares Issuable Upon Conversion Of Convertible Stock	4,202,123	1,701,955
Limited Partners' Capital Account	$ 275,869,375	$ 106,372,188
Redeemable Capital Shares Par Or Stated Value Per Share	$ 65.65	$ 62.50

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Basis of Presentation and Principles of Consolidation (Policies)

9 Months Ended

Sep. 30, 2014

Basis of Presentation and Principles of Consolidation [Abstract]

Basis Of Presentation And Principles Of Consolidation Policy [Policy Text Block]

Basis of Presentation and Principles of Consolidation

The accompanying condensed consolidated financial statements have been prepared by our management in accordance with United States generally accepted accounting principles, or GAAP, and applicable rules and regulations of the Securities and Exchange Commission, or the SEC. The consolidated financial statements of MAA presented herein include the accounts of MAA, the Operating Partnership, and all other subsidiaries in which MAA has a controlling financial interest. MAA owns approximately 95% to 100% of all consolidated subsidiaries. The consolidated financial statements of MAALP presented herein include the accounts of MAALP and all other subsidiaries in which MAALP has a controlling financial interest. MAALP owns, directly or indirectly, 100% of all consolidated subsidiaries. In our opinion, all adjustments necessary for a fair presentation of the condensed consolidated financial statements have been included, and all such adjustments were of a normal, recurring nature. All significant intercompany accounts and transactions have been eliminated in consolidation.

We invest in entities which may qualify as variable interest entities, or VIE. A VIE is a legal entity in which the equity investors lack sufficient equity at risk for the entity to finance its activities without additional subordinated financial support or, as a group, the holders of the equity investment at risk lack the power to direct the activities of a legal entity as well as the obligation to absorb its expected losses or the right to receive its expected residual returns. We consolidate all VIEs for which we are the primary beneficiary and use the equity method to account for investments that qualify as VIEs but for which we are not the primary beneficiary. In determining whether we are the primary beneficiary of a VIE, we consider qualitative and quantitative factors, including but not limited to, those activities that most significantly impact the VIE's economic performance and which party controls such activities.

We use the equity method of accounting for our investments in entities for which we exercise significant influence, but do not have the ability to exercise control. These entities are not variable interest entities. The factors considered in determining that we do not have the ability to exercise control include ownership of voting interests and participatory rights of investors.

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Fair Values of Derivative Instruments on Condensed Consolidated Balance Sheet (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Other assets
Derivatives, Fair Value [Line Items]
Asset Derivatives, Fair Value	$ 117	$ 396
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value	14	49
Interest Rate Swap [Member]
Derivatives, Fair Value [Line Items]
Derivative financial instruments, Liability	13,132	20,015
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Liability at Fair Value	0	0
Parent Company [Member]
Derivatives, Fair Value [Line Items]
Asset Derivatives, Fair Value	117	396
Derivative financial instruments, Liability	13,132	20,015
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value	14	49
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Liability at Fair Value	$ 0	$ 0

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Earnings Per OP Unit of MAALP Statement (details) (Limited Partner [Member], USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended				9 Months Ended
	Sep. 30, 2014		Sep. 30, 2013		Sep. 30, 2014		Sep. 30, 2013
Earnings Per Share Disclosure [Line Items]
Weighted average common units - basic	79,263		44,408		79,148		44,293
Effect of dilutive securities	0	[1]	0	[1]	0	[1]	53
Weighted average common shares - diluted	79,263		44,408		79,148		44,346
Calculation of Basic Earnings Per Unit [Member]
Earnings Per Share Disclosure [Line Items]
Income from continuing operations	$ 70,331		$ 16,297		$ 113,088		$ 52,734
Income from continuing operations allocated to unvested restricted shares	(130)		(14)		(209)		(46)
Income from continuing operations available for common unitholders, adjusted	70,201		16,283		112,879		52,688
Income from discontinued operations	388		29,778		6,731		64,634
Income from discontinued operations allocated to unvested restricted shares	(1)		(25)		(12)		(56)
Income from discontinued operations available for common unitholders, adjusted	387		29,753		6,719		64,578
Earnings per unit - basic	$ 0.89		$ 1.04		$ 1.51		$ 2.65
Calculation of Diluted Earnings Per Unit [Member]
Earnings Per Share Disclosure [Line Items]
Income from continuing operations	70,331		16,297		113,088		52,734
Income from continuing operations allocated to unvested restricted shares	(130)	[1]	(14)	[1]	(209)	[1]	0
Income from continuing operations available for common unitholders, adjusted	70,201		16,283		112,879		52,734
Income from discontinued operations	388		29,778		6,731		64,634
Income from discontinued operations allocated to unvested restricted shares	(1)	[1]	(25)	[1]	(12)	[1]	0
Income from discontinued operations available for common unitholders, adjusted	$ 387		$ 29,753		$ 6,719		$ 64,634
Earnings per unit - diluted	$ 0.89		$ 1.04		$ 1.51		$ 2.65

[1] (1) Dilutive securities and the related income are not included in the diluted earnings per unit calculations as they were not dilutive.

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Segment Information (Tables)

9 Months Ended

Sep. 30, 2014

Notes To Financial Statements [Abstract]

Revenues and NOI for Reportable Segment

Revenues and NOI for each reportable segment for the three- and nine-month periods ended September 30, 2014 and 2013 were as follows (dollars in thousands):

	Three months ended September 30,						Nine months ended September 30,
	2014			2013			2014			2013
Revenues
Large Market Same Store	$	64,017		$	61,135		$	187,712		$	180,012
Secondary Market Same Store	62,758			61,753			186,260			183,450
Non-Same Store and Other	121,995			12,372			362,681			31,200
Total property revenues	248,770			135,260			736,653			394,662
Management fee income	11			146			169			465
Total operating revenues	$	248,781		$	135,406		$	736,822		$	395,127
NOI
Large Market Same Store	$	38,556		$	35,651		$	111,909		$	106,279
Secondary Market Same Store	37,425			36,375			111,468			110,455
Non-Same Store and Other	72,695			8,901			219,160			26,271
Total NOI	148,676			80,927			442,537			243,005
Discontinued operations NOI included above	(539		)	(1,360		)	(1,502		)	(7,378		)
Management fee income	11			146			169			465
Depreciation and amortization	(70,222		)	(32,766		)	(229,866		)	(97,183		)
Acquisition expense	(13		)	—			(971		)	(499		)
Property management expense	(7,429		)	(4,970		)	(24,019		)	(15,301		)
General and administrative expense	(6,511		)	(3,976		)	(16,065		)	(10,604		)
Merger related expenses	(331		)	(5,561		)	(3,202		)	(11,298		)
Integration costs	(147		)	(35		)	(7,140		)	(35		)
Interest and other non-property income	85			16			1,166			86
Interest expense	(28,251		)	(14,923		)	(89,090		)	(45,657		)
Loss on debt extinguishment/modification	(2,586		)	(218		)	(2,586		)	(387		)
Amortization of deferred financing costs	(1,000		)	(820		)	(3,485		)	(2,427		)
Gain on sale of depreciable real estate assets excluded from discontinued operations	36,032			—			42,254			—
Net casualty (loss) gain after insurance and other settlement proceeds	(126		)	—			(431		)	455
Income tax expense	(442		)	(223		)	(1,235		)	(669		)
Gain on sale of non-depreciable real estate assets	—			—			535			—
Gain from real estate joint ventures	3,124			60			6,019			161
Discontinued operations	388			29,759			6,731			76,355
Net income attributable to noncontrolling interests	(3,743		)	(1,772		)	(6,364		)	(4,536		)
Net income attributable to MAA	$	66,976		$	44,284		$	113,455		$	124,553

Assets for Reportable Segment

Assets for each reportable segment as of September 30, 2014 and December 31, 2013, were as follows (dollars in thousands):

	September 30, 2014		December 31, 2013
Assets
Large Market Same Store	$	1,227,413	$	1,252,575
Secondary Market Same Store	764,383		796,697
Non-Same Store and Other	4,637,072		4,638,892
Corporate assets	154,146		153,761
Total assets	$	6,783,014	$	6,841,925

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Derivatives and Hedging Activities Gross Presentation, Effects of Offsetting, and Net Presentation of Derivatives (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Derivative [Line Items]
Interest Rate Cash Flow Hedge Asset at Fair Value	$ 131	$ 444
Derivative Asset, Fair Value, Amount Offset Against Collateral	0	0
Derivative Asset, Fair Value, Amount Not Offset Against Collateral	0	0
Derivative, Collateral, Right to Reclaim Cash	0	0
Derivative Liability, Fair Value, Gross Liability	13,132	20,015
Derivative Liability, Fair Value, Amount Offset Against Collateral	0	0
Derivative Liability, Fair Value, Amount Not Offset Against Collateral	0	0
Derivative, Collateral, Obligation to Return Cash	0	0
Derivative Assets [Member]
Derivative [Line Items]
Derivative, Fair Value, Net	131	444
Derivative Liabilities [Member]
Derivative [Line Items]
Derivative, Fair Value, Net	13,132	20,015
Assets [Member]
Derivative [Line Items]
Derivative, Fair Value, Net	131	444
Liability [Member]
Derivative [Line Items]
Derivative, Fair Value, Net	$ 13,132	$ 20,015

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Discontinued Operations MAALP Summary of Discontinued Operations (Details) (Limited Partner [Member], Discontinued Operations [Member], USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Limited Partner [Member] | Discontinued Operations [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Rental revenues	$ 795	$ 2,287	$ 2,384	$ 10,782
Other revenues	(2)	243	(7)	998
Total revenues	793	2,530	2,377	11,780
Property operating expenses	256	1,123	856	4,991
Depreciation and amortization	0	342	42	2,317
Interest expense and other	49	92	126	418
Total expenses	305	1,557	1,024	7,726
Income from discontinued operations before gain on sale	488	973	1,353	4,054
Net loss on insurance and other settlement proceeds on discontinued operations	3	(1)	0	(5)
Gain on sale of discontinued operations	(103)	28,806	5,378	60,585
Income from discontinued operations	$ 388	$ 29,778	$ 6,731	$ 64,634

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Notes Payable - Additional Information (Detail) (USD $)											9 Months Ended		9 Months Ended								3 Months Ended		9 Months Ended			9 Months Ended				3 Months Ended						9 Months Ended		9 Months Ended
	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2014 Interest Rate Forward Swap [Member] 2023 Notes [Member] Contract	Oct. 16, 2013 Interest Rate Forward Swap [Member] 2023 Notes [Member]	Sep. 30, 2014 Interest Rate Forward Swap [Member] 2024 Notes [Member] Contract	Jun. 10, 2014 Interest Rate Forward Swap [Member] 2024 Notes [Member]	Sep. 30, 2014 Secured Debt [Member]	Sep. 30, 2014 Secured Debt [Member] Fixed Rate Debt	Sep. 30, 2014 Unsecured Debt [Member]	Sep. 30, 2014 Unsecured Debt [Member] Senior Notes	Sep. 30, 2014 Unsecured Debt [Member] Senior Notes 2023 Notes [Member]	Oct. 16, 2013 Unsecured Debt [Member] Senior Notes 2023 Notes [Member]	Sep. 30, 2014 Unsecured Debt [Member] Senior Notes 2024 Notes [Member]	Jun. 10, 2014 Unsecured Debt [Member] Senior Notes 2024 Notes [Member]	Sep. 30, 2014 Unsecured Debt [Member] $500 million unsecured revolving credit faciltiy [Member]	Aug. 07, 2013 Unsecured Debt [Member] $500 million unsecured revolving credit faciltiy [Member]	Sep. 30, 2014 Individual property mortgages Secured Debt [Member] Fixed Rate Debt	Dec. 13, 2013 Colonial [Member] Unsecured Debt [Member] 6.25% Senior Notes due 2014 [Member]	Dec. 13, 2013 Colonial [Member] Unsecured Debt [Member] 5.5% Senior Notes due 2015 [Member]	Dec. 13, 2013 Colonial [Member] Unsecured Debt [Member] 6.05% Senior Notes due 2016 [Member]	Sep. 30, 2014 Limited Partner [Member]	Sep. 30, 2013 Limited Partner [Member]	Sep. 30, 2014 Limited Partner [Member]	Sep. 30, 2013 Limited Partner [Member]	Dec. 13, 2013 Limited Partner [Member]	Sep. 30, 2014 Limited Partner [Member] Unsecured Debt [Member] Exchange Notes [Member]	Dec. 13, 2013 Limited Partner [Member] Unsecured Debt [Member] 6.25% Senior Notes due 2014 [Member]	Dec. 13, 2013 Limited Partner [Member] Unsecured Debt [Member] 5.5% Senior Notes due 2015 [Member]	Dec. 13, 2013 Limited Partner [Member] Unsecured Debt [Member] 6.05% Senior Notes due 2016 [Member]	Sep. 30, 2014 Greenbrook [Member]	Sep. 30, 2014 Greenbrook [Member] Individual property mortgages Secured Debt [Member] Fixed Rate Debt	Sep. 30, 2014 Designated as Hedging Instrument [Member] Interest Rate Swap [Member] Contract	Sep. 30, 2014 Designated as Hedging Instrument [Member] Interest Rate Caps Contract	Sep. 30, 2014 Not Designated as Hedging Instrument [Member] Interest Rate Caps Contract	Sep. 30, 2014 Minimum [Member] Unsecured Debt [Member] Senior Notes	Sep. 30, 2014 Minimum [Member] Unsecured Debt [Member] $500 million unsecured revolving credit faciltiy [Member]	Sep. 30, 2014 Maximum [Member] Unsecured Debt [Member] Senior Notes	Sep. 30, 2014 Maximum [Member] Unsecured Debt [Member] $500 million unsecured revolving credit faciltiy [Member]
Debt Instrument [Line Items]
Notes Payable	$ 3,430,014,000	$ 3,470,000,000					$ 1,554,592,000	$ 1,215,496,000	$ 1,875,422,000								$ 1,090,496,000														$ 27,500,000
Debt Instrument, Face Amount												350,000,000		400,000,000		500,000,000
Debt Instrument, Basis Spread on Variable Rate																																				0.90%		1.70%
Debt Instrument, Interest Rate at Period End															1.10%
Line of Credit Facility, Amount Outstanding	0
Debt Instrument, Interest Rate, Stated Percentage												4.30%		3.75%				6.25%	5.50%	6.05%							6.25%	5.50%	6.05%
Debt Instrument, Issue Price												0.99047		0.98873
Debt Instrument, Unamortized Discount												3,300,000		4,500,000
Investment Banking, Advisory, Brokerage, and Underwriting Fees and Commissions											2,300,000		2,600,000
Proceeds from Notes Payable											344,400,000		392,900,000
Number of Interest Rate Derivatives Held			3		5
Derivative, Notional Amount			150,000,000		250,000,000																											625,000,000	165,000,000	90,326,031
Debt Instrument, Interest Rate, Effective Percentage	3.70%			4.15%		3.98%	3.40%	4.10%	4.00%								4.00%
Aggregate Principal Amount of Notes Exchanged																		154,200,000	169,200,000	68,100,000							154,200,000	169,100,000	68,100,000
Cash Received from Notes Exchange																									975,000
Debt Instrument, Interest Rate, Additional Interest, Maximum																										0.50%
Exchange Period																										270 days
Covenant Obligation, Debt to Total Asset Value										60.00%
Covenant Obligation, Secured Debt to Total Asset Value Ratio										40.00%
Covenant Obligation, Fixed Charge Ratio																																			150.00%		100.00%
Covenant Obligation, Unencumbered Leverage Ratio										150.00%
Loss on debt extinguishment/modification																					$ (2,586,000)	$ (218,000)	$ (2,586,000)	$ (387,000)						$ 2,600,000
Derivative, Number of Instruments Held																																9	6	14

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Business Combinations

9 Months Ended

Sep. 30, 2014

Business Combinations [Abstract]

Business Combination Disclosure [Text Block]

Business Combinations

Merger of MAA and Colonial

On October 1, 2013, MAA completed its merger with Colonial. As part of the merger, we acquired 115 wholly-owned apartment communities encompassing 34,370 units principally located in the Southeast and Southwest regions of the United States. In addition to the apartment communities, we also acquired four commercial properties totaling approximately 806,000 square feet. The additions have caused us to nearly double in size as a result of the merger. The net assets and results of operations of Colonial are included in our consolidated financial statements from the closing date, October 1, 2013, going forward.

The total purchase price of approximately $2.2 billion was determined based on the number of Colonial shares and Colonial OP Units outstanding as of October 1, 2013. In all cases in which MAA’s stock price was a determining factor in arriving at final consideration for the merger, the stock price used to determine the purchase price was the opening price of MAA’s common stock on October 1, 2013 ($62.56 per share). The total purchase price includes $7.3 million of other consideration, a majority of which relates to assumed stock compensation plans. As a result of the merger, we issued approximately 31.9 million shares of MAA common stock and approximately 2.6 million OP units.

The acquisition has been accounted for using the acquisition method of accounting in accordance with ASC 805, Business Combinations, which requires, among other things, that the assets acquired and liabilities assumed be recognized at their acquisition date fair values.

For larger, portfolio style acquisitions, like the merger, management engages a third party valuation specialist to assist with the fair value assessment, which includes an allocation of the purchase price. Similar to management's methods, the third party generally uses cash flow analysis as well as an income approach and a market approach to determine the fair value of assets acquired. The third party uses stabilized NOI and a market specific capitalization and discount rates. Management reviews the inputs used by the third party specialist as well as the allocation of the purchase price provided by the third party to ensure reasonableness and that the procedures are performed in accordance with management's policy. The allocation of the purchase price is based on management’s assessment, which may differ as more information becomes available. Subsequent adjustments made to the purchase price allocation, if any, are made within the allocation period, which typically does not exceed one year.

The allocation of the purchase price described above requires a significant amount of judgment and represents the Company's best estimate of the fair value as of the acquisition date. The following final purchase price allocation was based on our valuation as well as estimates and assumptions of the acquisition date fair value of the tangible and intangible assets acquired and liabilities assumed.

The following table summarizes the final purchase price allocation (in thousands):

Land	$	469,396
Buildings and improvements	3,080,858
Furniture, fixtures and equipment	96,377
Development and capital improvements in progress	113,368
Undeveloped land	58,400
Properties held for sale	33,300
Lease intangible assets	57,946
Cash and cash equivalents	63,454
Restricted cash	6,825
Deferred costs and other assets, excluding lease intangible assets	86,141
Total assets acquired	4,066,065
Notes payable	(1,759,550)
Fair market value of interest rate swaps	(14,961)
Accounts payable, accrued expenses, and other liabilities	(128,678)
Total liabilities assumed, including debt	(1,903,189		)
Total purchase price	$	2,162,876

We incurred merger and integration related expenses of $10.3 million for the nine months ended September 30, 2014. These amounts were expensed as incurred and are included in the Consolidated Statement of Operations in the items titled Merger related expenses, primarily consisting of severance, legal, and professional costs and Integration related expenses, primarily related to temporary systems, staffing, and facilities costs.

The allocation of fair values of the assets acquired and liabilities assumed has changed by an immaterial amount from the allocation reported in Item 8. Financial Statements and Supplementary Data - Notes to Consolidated Financial Statements, Note 2 of our Annual Report on Form 10-K for the year ended December 31, 2013, filed with the SEC on February 21, 2014. The changes were based on information concerning the subject assets and liabilities that was not yet known at the time of the 10-K filing. These adjustments had no material impact on the purchase price allocation, the consolidated balance sheet or the results of operations.

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Segment Information - Additional Information (Detail)	9 Months Ended
	Sep. 30, 2014 States Property
Segment Reporting Information [Line Items]
Number of owned or owned interests of apartment communities	265
Number of states in which apartment units are located	14
Period properties owned and stabilized	12 months
Occupancy Level for Stabilized Communities	90.00%
Period Properties Stabilized	90 days
Large Market Same Store [Member]
Segment Reporting Information [Line Items]
Apartment Community Population	1,000,000
Percentage of Total Public Multifamily REIT Units	1.00%
Period properties owned and stabilized	12 months
Secondary Market Same Store [Member]
Segment Reporting Information [Line Items]
Apartment Community Population	1,000,000
Percentage of Total Public Multifamily REIT Units	1.00%
Period properties owned and stabilized	12 months
Non Same Store And Other [Member]
Segment Reporting Information [Line Items]
Percentage of Total Public Multifamily REIT Units	1.00%

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MAA Equity (Details) (USD $)	9 Months Ended
	Sep. 30, 2014 Common Stock [Member]	Sep. 30, 2014 Additional Paid-in Capital [Member]	Sep. 30, 2014 Accumulated Distributions in Excess of Net Income [Member]	Sep. 30, 2014 Accumulated Other Comprehensive Income (Loss) [Member]	Sep. 30, 2014 Noncontrolling Interest [Member]	Sep. 30, 2014 Stockholders' Equity, Total [Member]	Sep. 30, 2013 Prior Period Rollforward [Member] Common Stock [Member]	Sep. 30, 2013 Prior Period Rollforward [Member] Additional Paid-in Capital [Member]	Sep. 30, 2013 Prior Period Rollforward [Member] Accumulated Distributions in Excess of Net Income [Member]	Sep. 30, 2013 Prior Period Rollforward [Member] Accumulated Other Comprehensive Income (Loss) [Member]	Sep. 30, 2013 Prior Period Rollforward [Member] Noncontrolling Interest [Member]	Sep. 30, 2013 Prior Period Rollforward [Member] Stockholders' Equity, Total [Member]
Equity [Line Items]
Beginning Balance	$ 747,000	$ 3,599,549,000	$ (653,593,000)	$ 108,000	$ 166,726,000	$ 3,113,537,000	$ 422,000	$ 1,542,999,000	$ (603,315,000)	$ (26,054,000)	$ 31,058,000	$ 945,110,000
Net income attributable to MAA			113,455,000						124,553,000
Net Income Attributable to Noncontrolling Interest					6,364,000						4,536,000
Net Income Including Portion Attributable to Noncontrolling Interest						119,819,000						129,089,000
Other comprehensive income - derivatives insturments (cash flow hedges)				288,000	15,000	303,000				21,455,000	739,000	22,194,000
Issuance and registration of common shares	2,000	726,000				728,000	4,000	25,034,000				25,038,000
Shares repurchased and retired	0	(456,000)				(456,000)	0	(682,000)				(682,000)
Exercise of stock options	3,000	11,913,000				11,916,000
Shares issued in exchange for units	0	992,000			(992,000)	0	1,000	549,000			(550,000)	0
Shares issued in exchange for redeemable stock		998,000				998,000
Redeemable stock fair market value			(286,000)			(286,000)			209,000			209,000
Adjustment for noncontrolling interest ownership in operating partnership		(55,000)			55,000	0		(7,418,000)			7,418,000	0
Amortization of unearned compensation		3,180,000				3,180,000		1,729,000				1,729,000
Dividends on common stock			(164,598,000)		0	(164,598,000)			(89,109,000)		0	(89,109,000)
Dividends on noncontrolling interest units					(9,209,000)	(9,209,000)					(3,557,000)	(3,557,000)
Ending Balance	$ 752,000	$ 3,616,847,000	$ (705,022,000)	$ 396,000	$ 162,959,000	$ 3,075,932,000	$ 427,000	$ 1,562,211,000	$ (567,662,000)	$ (4,599,000)	$ 39,644,000	$ 1,030,021,000

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Earnings Per Common Share of MAA (Tables)

9 Months Ended

Sep. 30, 2014

Earnings Per Common Share of MAA [Abstract]

Schedule of Calculation of Numerator and Denominator in Earnings Per Share [Table Text Block]

Basic earnings per share is computed by dividing net income attributable to common shareholders by the weighted average number of shares outstanding during the period.  All outstanding unvested restricted share awards contain rights to non-forfeitable dividends and participate in undistributed earnings with common shareholders and, accordingly, are considered participating securities that are included in the two-class method of computing basic earnings per share. Both the unvested restricted shares and other potentially dilutive common shares, and the related impact to earnings, are considered when calculating earnings per share on a diluted basis with our diluted earnings per share being the more dilutive of the treasury stock or two-class methods.  Operating Partnership units are included in dilutive earnings per share calculations when they are dilutive to earnings per share. For the three and nine months ended September 30, 2014 and 2013, MAA's basic earnings per share is computed using the two-class method, and our diluted earnings per share is computed using the more dilutive of the treasury stock method or two-class method:

(dollars and shares in thousands, except per share amounts)	Three months ended September 30,								Nine months ended September 30,
	2014				2013				2014				2013
Shares Outstanding
Weighted average common shares - basic	75,058				42,702				74,937				42,583
Weighted average partnership units outstanding	—			(1)	—			(1)	—			(1)	1,709
Effect of dilutive securities	—			(1)	—			(1)	—			(1)	53
Weighted average common shares - diluted	75,058				42,702				74,937				44,345
Calculation of Earnings per Share - basic
Income from continuing operations	$	70,331			$	16,297			$	113,088			$	52,734
Income from continuing operations attributable to noncontrolling interests	(3,722		)		(632		)		(6,005		)		(1,973		)
Income from continuing operations allocated to unvested restricted shares	(130		)		(14		)		(209		)		(46		)
Income from continuing operations available for common shareholders, adjusted	$	66,479			$	15,651			$	106,874			$	50,715
Income from discontinued operations	$	388			$	29,759			$	6,731			$	76,355
Income from discontinued operations attributable to noncontrolling interest	(21		)		(1,140		)		(359		)		(2,563		)
Income from discontinued operations allocated to unvested restricted shares	(1		)		(25		)		(12		)		(67		)
Income from discontinued operations available for common shareholders, adjusted	$	366			$	28,594			$	6,360			$	73,725
Weighted average common shares - basic	75,058				42,702				74,937				42,583
Earnings per share - basic	$	0.89			$	1.04			$	1.51			$	2.92
Calculation of Earnings per Share - diluted
Income from continuing operations	$	70,331			$	16,297			$	113,088			$	52,734
Income from continuing operations attributable to noncontrolling interests	(3,725		)	(1)	(632		)	(1)	(6,005		)	(1)	—
Income from continuing operations allocated to unvested restricted shares	(130		)	(1)	(14		)	(1)	(209		)	(1)	—
Income from continuing operations available for common shareholders, adjusted	$	66,476			$	15,651			$	106,874			$	52,734
Income from discontinued operations	$	388			$	29,759			$	6,731			$	76,355
Income from discontinued operations attributable to noncontrolling interest	(21		)	(1)	(1,140		)	(1)	(357		)	(1)	—
Income from discontinued operations allocated to unvested restricted shares	(1		)	(1)	(25		)	(1)	(12		)	(1)	—
Income from discontinued operations available for common shareholders, adjusted	$	366			$	28,594			$	6,362			$	76,355
Weighted average common shares - diluted	75,058				42,702				74,937				44,345
Earnings per share - diluted	$	0.89			$	1.04			$	1.51			$	2.91

⁽¹⁾ Operating partnership units, other dilutive securities, and the related income with each are not included in the diluted earnings per share calculations as they were not dilutive.

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Business Combinations (Tables)

9 Months Ended

Sep. 30, 2014

Purchase Price Allocation [Abstract]

Schedule of Purchase Price Allocation [Table Text Block]

The allocation of the purchase price described above requires a significant amount of judgment and represents the Company's best estimate of the fair value as of the acquisition date. The following final purchase price allocation was based on our valuation as well as estimates and assumptions of the acquisition date fair value of the tangible and intangible assets acquired and liabilities assumed.

The following table summarizes the final purchase price allocation (in thousands):

Land	$	469,396
Buildings and improvements	3,080,858
Furniture, fixtures and equipment	96,377
Development and capital improvements in progress	113,368
Undeveloped land	58,400
Properties held for sale	33,300
Lease intangible assets	57,946
Cash and cash equivalents	63,454
Restricted cash	6,825
Deferred costs and other assets, excluding lease intangible assets	86,141
Total assets acquired	4,066,065
Notes payable	(1,759,550)
Fair market value of interest rate swaps	(14,961)
Accounts payable, accrued expenses, and other liabilities	(128,678)
Total liabilities assumed, including debt	(1,903,189		)
Total purchase price	$	2,162,876

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Shareholders' Equity of MAA - Additional Information (Detail) (USD $)	3 Months Ended	9 Months Ended				3 Months Ended	9 Months Ended			9 Months Ended		3 Months Ended	9 Months Ended		12 Months Ended
	Sep. 30, 2014	Sep. 30, 2014	Sep. 30, 2013	Jun. 30, 2013	Feb. 25, 2013	Sep. 30, 2013 At The Market ATM Programs [Member]	Sep. 30, 2014 At The Market ATM Programs [Member]	Sep. 30, 2013 At The Market ATM Programs [Member]	Aug. 26, 2010 Maximum [Member]	Sep. 30, 2014 Noncontrolling Interest [Member]	Sep. 30, 2013 Noncontrolling Interest [Member]	Sep. 30, 2014 Parent Company [Member]	Sep. 30, 2014 Parent Company [Member]	Sep. 30, 2013 Parent Company [Member]	Dec. 31, 2013 Parent Company [Member]
Statement [Line Items]
Common stock, shares outstanding	75,242,266	75,242,266		42,744,978			4,134,989					75,242,266	75,242,266		74,830,726
Common Shares Issuable Upon Conversion Of Convertible Stock										4,202,123	1,701,955
Total common shares and operating partnership units outstanding	79,444,389	79,444,389	44,446,933
Common stock shares, outstanding option	81,654	81,654		0
Stock Issued During Period, Shares, Acquisitions		31,916,765								2,574,631
Agreement to sell common stock with financial service companies, shares					4,500,000				6,000,000
Stock Issued During Period, Shares, New Issues						0	0	365,011
Proceeds from issuance of common stock, net of applicable fees						$ 0		$ 24,800,000
Proceeds from Issuance of common stock						0		25,100,000					728,000	25,038,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period	40,338	263,259	0
Exercise of stock options												$ 2,400,000	$ 11,916,000	$ 0	$ 9,500,000
Treasury Stock, Shares, Acquired		9,292	4,805

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MAA Equity Parenthetical (Details) (Parent Company [Member], USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Parent Company [Member]
Equity Disclosure [Line Items]
Common Stock, Dividends, Per Share, Declared	$ 0.7300	$ 0.6950	$ 2.1900	$ 2.0850
Distribution Made to Limited Partner, Distributions Declared, Per Unit			$ 2.1900	$ 2.0850

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Earnings Per OP Unit of MAALP (Tables)

9 Months Ended

Sep. 30, 2014

Earnings Per OP Unit of MAALP [Abstract]

Schedule of Earnings Per Unit, Basic and Diluted [Table Text Block]

Basic earnings per OP Unit is computed by dividing net income available for common unitholders by the weighted average number of units outstanding during the period. All outstanding unvested restricted share awards contain rights to non-forfeitable dividends and participate in undistributed earnings with common unitholders and, accordingly, are considered participating securities that are included in the two-class method of computing basic earnings per OP unit. Diluted earnings per OP Unit reflects the potential dilution that could occur if securities or other contracts to issue OP Units were exercised or converted into OP Units. A reconciliation of the numerators and denominators of the basic and diluted earnings per unit computations for the three and nine months ended September 30, 2014 and 2013 is presented below:

(dollars and units in thousands, except per unit amounts)	Three months ended September 30,								Nine months ended September 30,
	2014				2013				2014				2013
Units Outstanding
Weighted average common units - basic	79,263				44,408				79,148				44,293
Effect of dilutive securities	—			(1)	—			(1)	—			(1)	53
Weighted average common units - diluted	79,263				44,408				79,148				44,346
Calculation of Earnings per Unit - basic
Income from continuing operations	$	70,331			$	16,297			$	113,088			$	52,734
Income from continuing operations allocated to unvested restricted shares	(130		)		(14		)		(209		)		(46		)
Income from continuing operations available for common unitholders, adjusted	$	70,201			$	16,283			$	112,879			$	52,688
Income from discontinued operations	$	388			$	29,778			$	6,731			$	64,634
Income from discontinued operations allocated to unvested restricted shares	(1		)		(25		)		(12		)		(56		)
Income from discontinued operations available for common unitholders, adjusted	$	387			$	29,753			$	6,719			$	64,578
Weighted average common units - basic	79,263				44,408				79,148				44,293
Earnings per unit - basic:	$	0.89			$	1.04			$	1.51			$	2.65
Calculation of Earnings per Unit - diluted
Income from continuing operations	$	70,331			$	16,297			$	113,088			$	52,734
Income from continuing operations allocated to unvested restricted shares	(130		)	(1)	(14		)	(1)	(209		)	(1)	—
Income from continuing operations available for common unitholders, adjusted	$	70,201			$	16,283			$	112,879			$	52,734
Income from discontinued operations	$	388			$	29,778			$	6,731			$	64,634
Income from discontinued operations allocated to unvested restricted shares	(1		)	(1)	(25		)	(1)	(12		)	(1)	—
Income from discontinued operations available for common unitholders, adjusted	$	387			$	29,753			$	6,719			$	64,634
Weighted average common units - diluted	79,263				44,408				79,148				44,346
Earnings per unit - diluted:	$	0.89			$	1.04			$	1.51			$	2.65

⁽¹⁾ Dilutive securities and the related income are not included in the diluted earnings per unit calculations as they were not dilutive.

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MAA Equity (Tables)

9 Months Ended

Sep. 30, 2014

Sep. 30, 2013

MAA Equity [Abstract]

Shareholders' Equity [Table Text Block]

Total equity and its components for the nine-month periods ended September 30, 2014 and 2013 were as follows (dollars in thousands, except per share and per unit data):

	Mid-America Apartment Communities, Inc. Shareholders
	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, 2013	$	747	$	3,599,549		$	(653,593	)	$	108	$	166,726		$	3,113,537
Net income						113,455					6,364			119,819
Other comprehensive income - derivative instruments (cash flow hedges)									288		15			303
Issuance and registration of common shares	2		726											728
Shares repurchased and retired	—		(456		)									(456		)
Exercise of stock options	3		11,913											11,916
Shares issued in exchange for units	—		992								(992		)	—
Shares issued in exchange from redeemable stock			998											998
Redeemable stock fair market value						(286		)						(286		)
Adjustment for noncontrolling interest ownership in operating partnership			(55		)						55			—
Amortization of unearned compensation			3,180											3,180
Dividends on common stock ($2.19 per share)						(164,598		)			—			(164,598		)
Dividends on noncontrolling interest units ($2.19 per unit)											(9,209		)	(9,209		)
EQUITY BALANCE SEPTEMBER 30, 2014	$	752	$	3,616,847		$	(705,022	)	$	396	$	162,959		$	3,075,932

	Mid-America Apartment Communities, Inc. Shareholders
	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, 2012	$	422	$	1,542,999		$	(603,315	)	$	(26,054	)	$	31,058		$	945,110
Net income						124,553						4,536			129,089
Other comprehensive income - derivative instruments (cash flow hedges)									21,455			739			22,194
Issuance and registration of common shares	4		25,034												25,038
Shares repurchased and retired	—		(682		)										(682		)
Shares issued in exchange for units	1		549									(550		)	—
Redeemable stock fair market value						209									209
Adjustment for noncontrolling interest ownership in operating partnership			(7,418		)							7,418			—
Amortization of unearned compensation			1,729												1,729
Dividends on common stock ($2.085 per share)						(89,109		)				—			(89,109		)
Dividends on noncontrolling interest units ($2.085 per unit)												(3,557		)	(3,557		)
EQUITY BALANCE SEPTEMBER 30, 2013	$	427	$	1,562,211		$	(567,662	)	$	(4,599	)	$	39,644		$	1,030,021

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Basis of Presentation and Principles of Consolidation and Significant Accounting Policies

9 Months Ended

Sep. 30, 2014

Consolidation and Basis of Presentation and Significant Accounting Policies [Abstract]

Consolidation and Basis of Presentation and Significant Accounting Policies

Basis of Presentation and Principles of Consolidation and Significant Accounting Policies

Unless the context otherwise requires, all references to "we," "us," "our," or the "Company" refer collectively to Mid-America Apartment Communities, Inc., together with its consolidated subsidiaries, including Mid-America Apartments, L.P. Unless the context otherwise requires, all references to “MAA” refers only to Mid-America Apartment Communities, Inc., and not any of its consolidated subsidiaries. Unless the context otherwise requires, the references to the “Operating Partnership” or “MAALP” refer to Mid-America Apartments, L.P. together with its consolidated subsidiaries. “Common stock” refers to the common stock of MAA and “shareholders” means the holders of shares of MAA’s common stock. The limited partnership interests of the Operating Partnership are referred to as “OP Units” and the holders of the OP Units are referred to as “unitholders”.

As of September 30, 2014, MAA owned 75,242,266 units (or approximately 94.7%) of the limited partnership interests of the Operating Partnership. MAA conducts substantially all of its business and holds substantially all of its assets through the Operating Partnership, and by virtue of its ownership of the OP Units and being the Operating Partnership's sole general partner, MAA has the ability to control all of the day-to-day operations of the Operating Partnership.

We believe combining the notes to the consolidated financial statements results in the following benefits:

• enhances a readers' understanding of MAA and the Operating Partnership by enabling the reader to view the business as a whole in the same manner that management views and operates the business;

• eliminates duplicative disclosure and provides a more streamlined and readable presentation since a substantial portion of the disclosure applies to both MAA and the Operating Partnership.

• creates time and cost efficiencies through the preparation of one combined report instead of two separate reports.

Management operates MAA and the Operating Partnership as one business. The management of the Company is comprised of individuals who are officers of MAA and employees of the Operating Partnership. We believe it is important to understand the few differences between MAA and the Operating Partnership in the context of how MAA and the Operating Partnership operate as a consolidated company. MAA and the Operating Partnership are structured as an "umbrella partnership REIT," or UPREIT. MAA's interest in the Operating Partnership entitles MAA to share in cash distributions from, and in the profits and losses of, the Operating Partnership in proportion to MAA's percentage interest therein and entitles MAA to vote on substantially all matters requiring a vote of the limited partners. MAA's only material asset is its ownership of limited partner interests in the Operating Partnership; therefore, MAA does not conduct business itself, other than acting as the sole general partner of the Operating Partnership, issuing public equity from time to time and guaranteeing certain debt of the Operating Partnership. The Operating Partnership holds, directly or indirectly, all of our real estate assets. Except for net proceeds from public equity issuances by MAA, which are contributed to the Operating Partnership in exchange for OP Units, the Operating Partnership generates the capital required by our business through the Operating Partnership's operations, direct or indirect incurrence of indebtedness and issuance of partnership units.

The presentation of MAA's shareholders' equity and the Operating Partnership's capital are the principal areas of difference between the consolidated financial statements of MAA and those of the Operating Partnership. MAA's shareholders' equity may include shares of preferred stock, shares of common stock, additional paid-in capital, cumulative earnings, cumulative distributions, noncontrolling interest, preferred units, treasury shares, accumulated other comprehensive income and redeemable common units. The Operating Partnership's capital may include common capital and preferred capital of the general partner (MAA), limited partners' preferred capital, limited partners' noncontrolling interest, accumulated other comprehensive income and redeemable common units. Redeemable common units represent the number of outstanding OP Units as of the date of the applicable balance sheet, valued for conversion at the greater of the closing market price of MAA's common stock or the aggregate value of the individual partners' capital balances. Holders of common units in the Operating Partnership (other than MAA and its entity affiliates) may require the Operating Partnership to redeem their common units, in which case the Operating Partnership may, at its option, pay the redemption price either in cash (in an amount per common unit equal, in general, to the average closing price of MAA’s common stock on the New York Stock Exchange, or “NYSE”, over a specified period of time prior to the redemption date) or by delivering one share of our common stock (subject to adjustment under specified circumstances) for each common unit so redeemed.

On October 1, 2013, MAA acquired Colonial Properties Trust, or Colonial, when Colonial was merged with and into MAA, with MAA being the surviving entity of the merger, pursuant to an agreement and plan of merger, which is referred to as the parent merger or the merger, and Martha Merger Sub, LP, or OP Merger Sub, a wholly-owned indirect subsidiary of MAALP, merged with and into Colonial Realty Limited Partnership, or Colonial LP, with Colonial LP being the surviving entity of the merger and becoming a wholly-owned indirect subsidiary of MAALP, which is referred to as the partnership merger. Under the terms of the merger agreement, each Colonial common share was converted into the right to receive 0.36 of a newly issued share of MAA common stock. In addition, each limited partner interest in Colonial LP designated as a “Class A Unit” and a “Partnership Unit” under the limited partnership agreement of Colonial LP, which we refer to in this filing as Colonial LP units, issued and outstanding immediately prior to the effectiveness of the partnership merger was converted into common units in MAALP at the 0.36 conversion rate. The net assets and results of operations of Colonial are included in our consolidated financial statements from the closing date, October 1, 2013 going forward.

As of September 30, 2014, we owned and operated 265 apartment communities comprising 81,137 apartments located in 14 states principally through the Operating Partnership, and we also owned an interest in the following unconsolidated real estate joint ventures:

	Percent Owned	Number of Units/Square Feet
Multifamily:
McKinney (1)	25.00%	—
Commercial:
Land Title Building	33.30%	29,971

⁽¹⁾ This joint venture consists of undeveloped land.

As of September 30, 2014, we had two development communities under construction totaling 514 units, with no units completed. Total expected costs for the development projects are $72.9 million, of which $49.2 million has been incurred through September 30, 2014. We expect to complete construction on one of the two projects by the first quarter of 2015 and on the other by the second quarter of 2015. Four of our multifamily properties include retail components with approximately 100,000 square feet of gross leasable area. We also have three wholly owned commercial properties, which we acquired through our merger with Colonial with approximately 287,000 square feet of gross leasable area, excluding tenant owned anchor stores, and one partially owned commercial property with approximately 30,000 square feet of gross leasable area.

Out of Period Adjustment

During the three months ended September 30, 2014, we reviewed our reconciliation of accumulated other comprehensive income, or AOCI. During this review, we noted that balances attributable to certain off-market interest rate swaps had accumulated in AOCI. As a result of this review, in the current quarter we recorded a $2.3 million non-cash adjustment to interest expense related to certain off-market derivative contracts acquired with the merger. This represents a cumulative adjustment for the one year period ended September 30, 2014 required by Accounting Standards Codification, or ASC, 815 to properly reflect the AOCI related to these off-market derivative contracts. The impact of the misstatement caused Net income available for MAA common shareholders to be understated by approximately $0.8 million, or $0.01 per diluted share for the year ended December 31, 2013. Total MAA shareholders' equity would not be affected by this adjustment. Because we believe the impact to Net income available for MAA common shareholders, EPS, and Total MAA shareholders' equity would not impact the readers of these financial statements, we deemed the out of period portion of this adjustment to be immaterial to the current period and all periods presented.

Reclassifications

In order to present comparative financial statements, certain reclassifications have been made. We previously reported approximately $9.5 million of cash proceeds from stock option exercises within Cash flows from operating activities for the six months ended June 30, 2014. This line has been reclassified to Cash flows from financing activities for the nine months ended September 30, 2014. In addition, we previously reported $6.2 million of Gain on sale of depreciable real-estate assets excluded from discontinued operations and $0.5 million of Gain on sale of non-depreciable real-estate assets as separate items below Discontinued operations on our Statement of Operations for the six months ended June 30, 2014. These two lines have been reclassified into Income from continuing operations for all periods presented as allowed under Accounting Standards Update, or ASU, 2014-08. The reclassifications had no effect on Net income available for MAA common shareholders.

Basis of Presentation and Principles of Consolidation

The accompanying condensed consolidated financial statements have been prepared by our management in accordance with United States generally accepted accounting principles, or GAAP, and applicable rules and regulations of the Securities and Exchange Commission, or the SEC. The consolidated financial statements of MAA presented herein include the accounts of MAA, the Operating Partnership, and all other subsidiaries in which MAA has a controlling financial interest. MAA owns approximately 95% to 100% of all consolidated subsidiaries. The consolidated financial statements of MAALP presented herein include the accounts of MAALP and all other subsidiaries in which MAALP has a controlling financial interest. MAALP owns, directly or indirectly, 100% of all consolidated subsidiaries. In our opinion, all adjustments necessary for a fair presentation of the condensed consolidated financial statements have been included, and all such adjustments were of a normal, recurring nature. All significant intercompany accounts and transactions have been eliminated in consolidation.

We invest in entities which may qualify as variable interest entities, or VIE. A VIE is a legal entity in which the equity investors lack sufficient equity at risk for the entity to finance its activities without additional subordinated financial support or, as a group, the holders of the equity investment at risk lack the power to direct the activities of a legal entity as well as the obligation to absorb its expected losses or the right to receive its expected residual returns. We consolidate all VIEs for which we are the primary beneficiary and use the equity method to account for investments that qualify as VIEs but for which we are not the primary beneficiary. In determining whether we are the primary beneficiary of a VIE, we consider qualitative and quantitative factors, including but not limited to, those activities that most significantly impact the VIE's economic performance and which party controls such activities.

We use the equity method of accounting for our investments in entities for which we exercise significant influence, but do not have the ability to exercise control. These entities are not variable interest entities. The factors considered in determining that we do not have the ability to exercise control include ownership of voting interests and participatory rights of investors.

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MAALP Capital (Tables)

9 Months Ended

Sep. 30, 2014

Sep. 30, 2013

MAALP Capital [Abstract]

Partners' Capital [Table Text Block]

Total capital and its components for the nine-month periods ended September 30, 2014 and 2013 were as follows (dollars in thousands, except per unit data):

	Mid-America Apartments, L.P. Unitholders
	Limited Partner			General Partner			Accumulated Other Comprehensive Income (Loss)		Total Partnership Capital
CAPITAL BALANCE DECEMBER 31, 2013	$	166,746		$	2,946,598		$	174	$	3,113,518
Net income	6,364			113,455					119,819
Other comprehensive income - derivative instruments (cash flow hedges)							303		303
Issuance of units	—			728					728
Units repurchased and retired				(456		)			(456		)
Exercise of unit options				11,916					11,916
General partner units issued in exchange for limited partner units	(992		)	992					—
Units issued in exchange from redeemable units				998					998
Redeemable units fair market value adjustment				(286		)			(286		)
Adjustment for limited partners' capital at redemption value	28			(28		)			—
Amortization of unearned compensation				3,180					3,180
Distributions ($2.19 per unit)	(9,209		)	(164,598		)			(173,807		)
CAPITAL BALANCE SEPTEMBER 30, 2014	$	162,937		$	2,912,499		$	477	$	3,075,913

	Mid-America Apartments, L.P. Unitholders
	Limited Partner			General Partner			Accumulated Other Comprehensive Income (Loss)			Total Partnership Capital
CAPITAL BALANCE DECEMBER 31, 2012	$	38,154		$	927,734		$	(26,881	)	$	939,007
Net income	4,518			112,850						117,368
Other comprehensive income - derivative instruments (cash flow hedges)							22,193			22,193
Issuance of units				25,038						25,038
Units repurchased and retired				(682		)				(682		)
General partner units issued in exchange for limited partner units	(550		)	550						—
Redeemable units fair market value adjustment				209						209
Adjustment for limited partners capital at redemption value	1,218			16,597						17,815
Amortization of unearned compensation				1,729						1,729
Distributions ($2.085 per unit)	(3,557		)	(89,109		)				(92,666		)
CAPITAL BALANCE SEPTEMBER 30, 2013	$	39,783		$	994,916		$	(4,688	)	$	1,030,011

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Business Combinations Purchase Price Allocation (Details) (Parent Company [Member], Colonial [Member], USD $) In Thousands, unless otherwise specified	Sep. 30, 2014
Business Acquisition [Line Items]
Business Acquisition, PPA, Assets Acquired	$ 4,066,065
Business Acquisition, PPA, Liabilities Assumed	1,903,189
Business Acquisition, Cost of Acquired Entity, Purchase Price	2,162,876
Land
Business Acquisition [Line Items]
Business Acquisition, PPA, Assets Acquired	469,396
Building and improvements
Business Acquisition [Line Items]
Business Acquisition, PPA, Assets Acquired	3,080,858
Furniture, fixtures and equipment
Business Acquisition [Line Items]
Business Acquisition, PPA, Assets Acquired	96,377
Development and capital improvements in progress
Business Acquisition [Line Items]
Business Acquisition, PPA, Assets Acquired	113,368
Undeveloped land
Business Acquisition [Line Items]
Business Acquisition, PPA, Assets Acquired	58,400
Properties held for sale
Business Acquisition [Line Items]
Business Acquisition, PPA, Assets Acquired	33,300
Lease intangible assets
Business Acquisition [Line Items]
Business Acquisition, PPA, Assets Acquired	57,946
Cash and cash equivalents
Business Acquisition [Line Items]
Business Acquisition, PPA, Assets Acquired	63,454
Restricted cash
Business Acquisition [Line Items]
Business Acquisition, PPA, Assets Acquired	6,825
Deferred costs and other assets, excluding lease intangible assets
Business Acquisition [Line Items]
Business Acquisition, PPA, Assets Acquired	86,141
Notes payable
Business Acquisition [Line Items]
Business Acquisition, PPA, Liabilities Assumed	1,759,550
Fair market value of interest rate swaps
Business Acquisition [Line Items]
Business Acquisition, PPA, Liabilities Assumed	14,961
Accounts payable, accrued expenses, and other liabilities
Business Acquisition [Line Items]
Business Acquisition, PPA, Liabilities Assumed	$ 128,678

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Derivatives and Hedging Activities Other Comprehensive Income (Details) (Parent Company [Member], USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Parent Company [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	$ 108	$ (26,054)
Amount of (Loss) or Gain Recognized in OCI on Derivative (Effective Portion)	(9,096)	10,096
Other Comprehensive Loss, Reclassification Adjustment from AOCI on Derivatives, Net of Tax	9,399	12,098
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Noncontrolling Interest	(15)	(739)
Other Comprehensive (Loss) Income , Net of Tax, Portion Attributable to Parent	288	21,455
Ending Balance	$ 396	$ (4,599)

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MAA Condensed Consolidated Balance Sheets (Parent Company [Member], USD $) In Thousands, except Share data, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Parent Company [Member]
Assets:
Land	$ 872,786	$ 871,316
Buildings and improvements	6,595,550	6,366,701
Furniture, fixtures and equipment	208,653	199,573
Development and capital improvements in progress	59,161	166,048
Real Estate Investment Property, at Cost	7,736,150	7,603,638
Less accumulated depreciation	(1,288,374)	(1,124,207)
Real Estate Investment Property, Net	6,447,776	6,479,431
Undeveloped land	58,700	63,850
Corporate properties, net	8,263	7,523
Investments in real estate joint ventures	1,802	5,499
Real estate assets, net	6,516,541	6,556,303
Cash and cash equivalents	87,766	89,333
Restricted cash	59,786	44,361
Deferred financing costs, net	17,870	17,424
Other assets	62,996	91,637
Goodwill	2,321	4,106
Assets held for sale	35,734	38,761
Total assets	6,783,014	6,841,925
Liabilities:
Secured notes payable	1,554,592	1,790,935
Unsecured notes payable	1,875,422	1,681,783
Accounts payable	10,089	15,067
Fair market value of interest rate swaps	13,132	20,015
Accrued expenses and other liabilities	238,849	206,268
Security deposits	9,970	9,270
Total liabilities	3,702,054	3,723,338
Redeemable stock	5,028	5,050
Shareholders' equity:
Common stock	752	747
Additional paid-in capital	3,616,847	3,599,549
Accumulated distributions in excess of net income	(705,022)	(653,593)
Accumulated other comprehensive income	396	108
Total MAA shareholders' equity	2,912,973	2,946,811
Noncontrolling interest	162,959	166,726
Total equity	3,075,932	3,113,537
Total liabilities and equity	$ 6,783,014	$ 6,841,925
Redeemable stock, shares issued and outstanding	85,164	83,139

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MAALP Capital (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2014 Limited Partners' Capital Account [Member]	Sep. 30, 2014 General Partners' Capital Account [Member]	Sep. 30, 2014 Accumulated Other Comprehensive Income (Loss) [Member]	Sep. 30, 2014 Total Partnership Capital [Member]	Sep. 30, 2013 Prior Period Rollforward [Member] Limited Partners' Capital Account [Member]	Sep. 30, 2013 Prior Period Rollforward [Member] General Partners' Capital Account [Member]	Sep. 30, 2013 Prior Period Rollforward [Member] Accumulated Other Comprehensive Income (Loss) [Member]	Sep. 30, 2013 Prior Period Rollforward [Member] Total Partnership Capital [Member]
Capital Disclosure [Line Items]
Beginning Balance	$ 166,746	$ 2,946,598	$ 174	$ 3,113,518	$ 38,154	$ 927,734	$ (26,881)	$ 939,007
Net Income Allocated to Limited Partners	6,364				4,518
Net Income Allocated to General Partners		113,455				112,850
Net Income Available for Common Unitholders				119,819				117,368
Other comprehensive income - derivatives insturments (cash flow hedges)			303	303			22,193	22,193
Issuance of units	0	728		728		25,038		25,038
Units repurchased and retired		(456)		(456)		(682)		(682)
Exercise of unit options		11,916		11,916
General partner units issued in exchange for limited partner units	(992)	992		0	(550)	550		0
Units issued in exchange for redeemable units		998		998
Redeemable stock fair market value		(286)		(286)		209		209
Adjustment for noncontrolling interest ownership in operating partnership	28	(28)		0	1,218	16,597		17,815
Amortization of unearned compensation		3,180		3,180		1,729		1,729
Distributions	(9,209)	(164,598)		(173,807)	(3,557)	(89,109)		(92,666)
Ending Balance	$ 162,937	$ 2,912,499	$ 477	$ 3,075,913	$ 39,783	$ 994,916	$ (4,688)	$ 1,030,011

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Consolidated Statements of Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Parent Company [Member]
Consolidated net income	$ 70,719	$ 46,056	$ 119,819	$ 129,089
Unrealized (losses) gains from the effective portion of derivitave insturments	(696)	(1,826)	(9,096)	10,096
Reclassification adjustment for net losses included in net income for the effective portion of derivative instruments	2,589	3,621	9,399	12,098
Total comprehensive income	72,612	47,851	120,122	151,283
Less: comprehensive income attributable to noncontrolling interests	(3,845)	(1,830)	(6,379)	(5,275)
Comprehensive income attributable to MAA	68,767	46,021	113,743	146,008
Limited Partner [Member]
Consolidated net income	70,719	46,075	119,819	117,368
Unrealized (losses) gains from the effective portion of derivitave insturments	(696)	(1,826)	(9,096)	10,096
Reclassification adjustment for net losses included in net income for the effective portion of derivative instruments	2,589	3,621	9,399	12,098
Comprehensive income attributable to Mid-America Apartments, L.P.	$ 72,612	$ 47,870	$ 120,122	$ 139,562

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Discontinued Operations - Additional Information (Detail)	9 Months Ended	12 Months Ended
	Sep. 30, 2014 Communities Property	Dec. 31, 2013 Communities
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number Of Properties Sold	1	9
Number of owned or owned interests of apartment communities	265
Number of Units in Real Estate Property	81,137
Willow Creek
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of Units in Real Estate Property	285
Colonial Promenade Nord du Lac
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Square Footage of Real Estate Property	195,536
Held For Sale [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of owned or owned interests of apartment communities	1

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Fair Value Disclosure of Financial Instruments (Tables)

9 Months Ended

12 Months Ended

Sep. 30, 2014

Dec. 31, 2013

Notes To Financial Statements [Abstract]

Assets and Liabilities Measured at Fair Value on a Recurring Basis

The table below presents our assets and liabilities measured at fair value on a recurring basis as of September 30, 2014 and December 31, 2013, aggregated by the level in the fair value hierarchy within which those measurements fall.

Assets and Liabilities Measured at Fair Value on a Recurring Basis at September 30, 2014

(dollars in thousands)

	Quoted Prices in Active Markets for Identical Assets and Liabilities (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Balance at
							September 30, 2014
Assets
Derivative financial instruments	$	—	$	131	$	—	$	131
Liabilities
Derivative financial instruments	$	—	$	13,132	$	—	$	13,132

Assets and Liabilities Measured at Fair Value on a Recurring Basis at December 31, 2013

(dollars in thousands)

	Quoted Prices in Active Markets for Identical Assets and Liabilities (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Balance at
							December 31, 2013
Assets
Derivative financial instruments	$	—	$	444	$	—	$	444
Liabilities
Derivative financial instruments	$	—	$	20,015	$	—	$	20,015

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Real Estate Acquisitions and Dispositions - Additional Information (Detail)	Sep. 30, 2014
Business Acquisitions and Dispositions [Line Items]
Number of Units in Real Estate Property	81,137
Belterra [Member]
Business Acquisitions and Dispositions [Line Items]
Equity Method Investment, Ownership Percentage	10.00%
Colonial Village at Charleston Place [Member]
Business Acquisitions and Dispositions [Line Items]
Number of Units in Real Estate Property	214
Greenbrook [Member]
Business Acquisitions and Dispositions [Line Items]
Number of Units in Real Estate Property	1,037
Colonial Village at Inverness [Member]
Business Acquisitions and Dispositions [Line Items]
Number of Units in Real Estate Property	586
Verandas at Southwood [Member]
Business Acquisitions and Dispositions [Line Items]
Number of Units in Real Estate Property	300
Colonial Village at Ashford Place [Member]
Business Acquisitions and Dispositions [Line Items]
Number of Units in Real Estate Property	168
Colonial Village at Huntleigh Woods [Member]
Business Acquisitions and Dispositions [Line Items]
Number of Units in Real Estate Property	233
Belterra [Member]
Business Acquisitions and Dispositions [Line Items]
Number of Units in Real Estate Property	288

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Real Estate Acquisitions and Dispositions

9 Months Ended

Sep. 30, 2014

Notes To Financial Statements [Abstract]

Real Estate Acquisitions and Dispositions

 Real Estate Acquisitions and Dispositions

On July 10, 2014, we closed on the sale of the 214-unit Colonial Village at Charleston Place apartment community located in Charlotte, North Carolina.

On July 10, 2014, we closed on the sale of the 1,037-unit Greenbrook apartment community located in Memphis, Tennessee.

On July 10, 2014, we closed on the sale of the 586-unit Colonial Village at Inverness apartment community located in Birmingham, Alabama.

On July 23, 2014, we closed on the purchase of the 300-unit Verandas at Southwood apartment community located in Tallahassee, Florida. This property was previously a part of Mid-America Multifamily Fund II, or Fund II.

On September 11, 2014, we closed on the sale of the 168-unit Colonial Village at Ashford Place apartment community located in Mobile, Alabama.

On September 11, 2014, we closed on the sale of the 233-unit Colonial Village at Huntleigh Woods apartment community located in Mobile, Alabama.

On September 15, 2015, we sold our 10% interest in Belterra, a 288-unit apartment community acquired as part of the merger and located in Fort Worth, Texas.

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Discontinued Operations (Tables)

9 Months Ended

Sep. 30, 2014

Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]

Schedule of Discontinued Operation Properties Sold [Table Text Block]

The following table lists the communities classified as discontinued operations for the nine months ended September 30, 2014:

Community	Units/Sq. Ft.	Date Sold	Location	Operating Segment
Willow Creek	285	January 15, 2014	Columbus, Georgia	Non-same store and other
Colonial Promenade Nord du Lac	195,536	Held for Sale	New Orleans, Louisiana	Non-same store and other

Schedule of Income from Continuing and Discontinued Operations Attributable to MAA and Noncontrolling Interest [Table Text Block]

The following is a summary of income from continuing and discontinued operations attributable to MAA and noncontrolling interest for the three- and nine-month periods ended September 30, 2014 and 2013 (dollars in thousands):

	Three months ended September 30,				Nine months ended September 30,
	2014		2013		2014		2013
Income from continuing operations:
Attributable to MAA	$	66,609	$	15,665	$	107,083	$	50,761
Attributable to noncontrolling interest	3,722		632		6,005		1,973
Income from continuing operations	$	70,331	$	16,297	$	113,088	$	52,734
Income from discontinued operations:
Attributable to MAA	$	367	$	28,619	$	6,372	$	73,792
Attributable to noncontrolling interest	21		1,140		359		2,563
Income from discontinued operations	$	388	$	29,759	$	6,731	$	76,355

Parent Company [Member]

Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]

Summary of Discontinued Operations

The following is a summary of earnings from discontinued operations for MAA for the three- and nine-month periods ended September 30, 2014 and 2013 (dollars in thousands):

	Three months ended September 30,						Nine months ended September 30,
	2014			2013			2014			2013
Revenues
Rental revenues	$	795		$	2,295		$	2,384		$	11,830
Other revenues	(2		)	243			(7		)	1,088
Total revenues	793			2,538			2,377			12,918
Expenses
Property operating expenses	256			1,132			856			5,496
Depreciation and amortization	—			342			42			2,553
Interest expense and other	49			92			126			418
Total expense	305			1,566			1,024			8,467
Income from discontinued operations before (loss) gain on sale	488			972			1,353			4,451
Net gain (loss) on insurance and other settlement proceeds on discontinued operations	3			(1		)	—			(5		)
(Loss) gain on sale of discontinued operations	(103		)	28,788			5,378			71,909
Income from discontinued operations	$	388		$	29,759		$	6,731		$	76,355

Limited Partner [Member]

Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]

Summary of Discontinued Operations

The following is a summary of earnings from discontinued operations for MAALP for the three- and nine-month periods ended September 30, 2014 and 2013 (dollars in thousands):

	Three months ended September 30,						Nine months ended September 30,
	2014			2013			2014			2013
Revenues:
Rental revenues	$	795		$	2,287		$	2,384		$	10,782
Other revenues	(2		)	243			(7		)	998
Total revenues	793			2,530			2,377			11,780
Expenses:
Property operating expenses	256			1,123			856			4,991
Depreciation and amortization	—			342			42			2,317
Interest expense and other	49			92			126			418
Total expenses	305			1,557			1,024			7,726
Income from discontinued operations before (loss) gain on sale	488			973			1,353			4,054
Net gain (loss) on insurance and other settlement proceeds on discontinued operations	3			(1		)	—			(5		)
(Loss) gain on sale of discontinued operations	(103		)	28,806			5,378			60,585
Income from discontinued operations	$	388		$	29,778		$	6,731		$	64,634

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Subsequent Events

9 Months Ended

Sep. 30, 2014

Subsequent Events [Abstract]

Subsequent Events

Subsequent Events

Financing

On October 1, 2014, we amended the terms of our $150 million term loan agreement with U.S. Bank. The amendment reduced the interest rate from LIBOR plus an interest rate spread of 1.10% to 2.05% to a more favorable rate of LIBOR plus an interest rate spread of 0.90% to 1.90% based on our credit rating. The amendment also extended the maturity of the agreement to March 1, 2020.

Acquisitions

On October 30, 2014, we closed on the purchase of the 480-unit Highlands of West Village apartment community located in Smyrna (Atlanta), Georgia. This community also includes approximately 63,000 square feet of retail space.

On October 31, 2014, we closed on the purchase of the 328-unit Bulverde Oaks apartment community located in San Antonio, Texas.

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Condensed Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Parent Company [Member]
Cash flows from operating activities:
Consolidated net income	$ 119,819	$ 129,089
Adjustments to reconcile net income to net cash provided by operating activities:
Retail revenue accretion	(17)	(29)
Depreciation and amortization	233,312	102,158
Stock compensation expense	3,180	1,729
Redeemable stock issued	690	535
Amortization of debt premium	(20,121)	(948)
Gain from investments in real estate joint ventures	(3,159)	(161)
Loss on debt extinguishment	2,586	387
Derivative interest expense	(2,543)	827
Settlement of forward swaps	(3,625)	0
Gain on sale of non-depreciable real estate assets	(535)	0
Gain on sale of depreciable real estate assets excluded from discontinued operations	(42,254)	0
(Loss) gain on sale of discontinued operations	(5,378)	(71,909)
Net casualty loss (gain) and other settlement proceeds	431	(450)
Changes in assets and liabilities:
Restricted cash	15,062	(391)
Other assets	(5,016)	(7,611)
Accounts payable	(1,665)	2,377
Accrued expenses and other	31,630	12,951
Security deposits	688	223
Net cash provided by operating activities	323,085	168,777
Cash flows from investing activities:
Purchases of real estate and other assets	(180,272)	(89,866)
Normal capital improvements	(71,140)	(35,412)
Construction capital and other improvements	(4,456)	(3,873)
Renovations to existing real estate assets	(11,950)	(8,616)
Development	(40,752)	(26,129)
Distributions from real estate joint ventures	15,964	8,311
Contributions to real estate joint ventures	0	(183)
Proceeds from disposition of real estate assets	241,691	118,783
Funding of escrow for future acquisitions	(30,487)	(57,380)
Net cash used in investing activities	(81,402)	(94,365)
Cash flows from financing activities:
Net change in credit lines	(216,184)	177,000
Proceeds from notes payable	396,532	0
Principal payments on notes payable	(258,105)	(8,695)
Payment of deferred financing costs	(4,156)	(2,655)
Repurchase of common stock	(456)	(682)
Proceeds from issuances of common shares	728	25,038
Exercise of stock options	11,916	0
Distributions to noncontrolling interests	(9,227)	(3,574)
Dividends paid on common shares	(164,298)	(88,814)
Net cash (used in) provided by financing activities	(243,250)	97,618
Net (decrease) increase in cash and cash equivalents	(1,567)	172,030
Cash and cash equivalents, beginning of period	89,333	9,075
Cash and cash equivalents, end of period	87,766	181,105
Supplemental disclosure of cash flow information:
Interest paid	101,252	48,534
Income taxes paid	1,596	803
Supplemental disclosure of noncash investing and financing activities:
Conversion of units to shares of common stock	992	550
Accrued construction in progress	6,539	4,190
Interest capitalized	1,253	1,118
Marked-to-market adjustment on derivative instruments	6,471	21,367
Fair value adjustment on debt assumed	2,720	704
Loan assumption	52,521	18,293
Limited Partner [Member]
Cash flows from operating activities:
Consolidated net income	119,819	117,368
Adjustments to reconcile net income to net cash provided by operating activities:
Retail revenue accretion	(17)	(29)
Depreciation and amortization	233,312	101,923
Stock compensation expense	3,180	1,729
Redeemable stock issued	690	535
Amortization of debt premium	(20,121)	(948)
Gain from investments in real estate joint ventures	(3,159)	(161)
Loss on debt extinguishment	2,586	387
Derivative interest expense	(2,543)	827
Settlement of forward swaps	(3,625)	0
Gain on sale of non-depreciable real estate assets	(535)	0
Gain on sale of depreciable real estate assets excluded from discontinued operations	(42,254)	0
(Loss) gain on sale of discontinued operations	(5,378)	(60,585)
Net casualty loss (gain) and other settlement proceeds	431	(450)
Changes in assets and liabilities:
Restricted cash	15,062	(390)
Other assets	(5,016)	(7,740)
Accounts payable	(1,665)	2,409
Accrued expenses and other	31,630	13,200
Security deposits	688	242
Net cash provided by operating activities	323,085	168,317
Cash flows from investing activities:
Purchases of real estate and other assets	(180,272)	(89,866)
Normal capital improvements	(71,140)	(35,451)
Construction capital and other improvements	(4,456)	(3,873)
Renovations to existing real estate assets	(11,950)	(8,616)
Development	(40,752)	(26,129)
Distributions from real estate joint ventures	15,964	8,311
Contributions to real estate joint ventures	0	(183)
Proceeds from disposition of real estate assets	241,691	102,204
Funding of escrow for future acquisitions	(30,487)	(57,380)
Net cash used in investing activities	(81,402)	(110,983)
Cash flows from financing activities:
Advances from general partner	0	17,219
Net change in credit lines	(216,184)	177,000
Proceeds from notes payable	396,532	0
Principal payments on notes payable	(258,105)	(8,695)
Payment of deferred financing costs	(4,156)	(2,655)
Repurchase of common units	(456)	(682)
Proceeds from issuances of common units	728	25,038
Exercise of stock options	11,916	0
Distributions paid on common units	(173,525)	(92,388)
Net cash (used in) provided by financing activities	(243,250)	114,837
Net (decrease) increase in cash and cash equivalents	(1,567)	172,171
Cash and cash equivalents, beginning of period	89,333	8,934
Cash and cash equivalents, end of period	87,766	181,105
Supplemental disclosure of cash flow information:
Interest paid	101,252	48,534
Income taxes paid	1,596	803
Supplemental disclosure of noncash investing and financing activities:
Accrued construction in progress	6,539	4,190
Interest capitalized	1,253	1,118
Marked-to-market adjustment on derivative instruments	6,471	21,367
Fair value adjustment on debt assumed	2,720	704
Loan assumption	$ 52,521	$ 18,293

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MAALP Condensed Consolidated Balance Sheets (Limited Partner [Member], USD $)	Sep. 30, 2014	Dec. 31, 2013
Limited Partner [Member]
Assets:
Land	$ 872,786,000	$ 871,316,000
Buildings and improvements	6,595,550,000	6,366,701,000
Furniture, fixtures and equipment	208,653,000	199,573,000
Development and capital improvements in progress	59,161,000	166,048,000
Real Estate Investment Property, at Cost	7,736,150,000	7,603,638,000
Less accumulated depreciation	(1,288,374,000)	(1,124,207,000)
Real Estate Investment Property, Net	6,447,776,000	6,479,431,000
Undeveloped land	58,700,000	63,850,000
Corporate properties, net	8,263,000	7,523,000
Investments in real estate joint ventures	1,802,000	5,499,000
Real estate assets, net	6,516,541,000	6,556,303,000
Cash and cash equivalents	87,766,000	89,333,000
Restricted cash	59,786,000	44,361,000
Deferred financing costs, net	17,870,000	17,424,000
Other assets	62,996,000	91,637,000
Goodwill	2,321,000	4,106,000
Assets held for sale	35,734,000	38,761,000
Total assets	6,783,014,000	6,841,925,000
Liabilities:
Secured notes payable	1,554,592,000	1,790,935,000
Unsecured notes payable	1,875,422,000	1,681,783,000
Accounts payable	10,089,000	15,067,000
Fair market value of interest rate swaps	13,132,000	20,015,000
Accrued expenses and other liabilities	238,849,000	206,268,000
Security deposits	9,970,000	9,270,000
Due to general partner	19,000	19,000
Total liabilities	3,702,073,000	3,723,357,000
Redeemable units	5,028,000	5,050,000
Capital [Abstract]
General Partners' Capital Account	2,912,499,000	2,946,598,000
Limited Partners' Capital Account	162,937,000	166,746,000
Accumulated other comprehensive income	477,000	174,000
Total Capital	3,075,913,000	3,113,518,000
Total Liabilities and Capital	$ 6,783,014,000	$ 6,841,925,000
Redeemable units, units issued and outstanding	85,164	83,139

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Shareholders' Equity of MAA

9 Months Ended

Sep. 30, 2014

Shareholders' Equity of MAA [Abstract]

Stockholders' Equity Note Disclosure [Text Block]

Shareholders' Equity of MAA

On September 30, 2014, 75,242,266 shares of common stock of MAA and 4,202,123 partnership units in the Operating Partnership were issued and outstanding, representing a total of 79,444,389 shares and units. At September 30, 2013, 42,744,978 shares of common stock of MAA and 1,701,955 partnership units in the Operating Partnership were outstanding, representing a total of 44,446,933 shares and units. There were 81,654 outstanding options as of September 30, 2014 compared to zero outstanding options as of September 30, 2013. The primary reason for the increase in shares, units, and options is due to the merger with Colonial. In connection with the merger, on October 1, 2013, we issued 31,916,765 shares and 2,574,631 partnership units.

On August 26, 2010, we and our Operating Partnership entered into sales agreements with Cantor Fitzgerald & Co., Raymond James & Associates, Inc. and Merrill Lynch, Pierce, Fenner & Smith Incorporated to sell up to a combined total of 6,000,000 shares of our common stock, from time to time in at-the-market offerings or negotiated transactions through a controlled equity offering program, or ATM. We terminated this ATM program, and on February 25, 2013, we and our Operating Partnership entered into sales agreements with J.P. Morgan Securities LLC, BMO Capital Markets Corp., KeyBanc Capital Markets Inc. and UBS Securities LLC to sell up to 4,500,000 shares of our common stock with materially the same terms as our previous sales agreements.

During the three- and nine-month periods ended September 30, 2014, we issued no shares through our ATM programs. During the three- and nine-month periods ended September 30, 2013, we issued zero and 365,011 shares respectively through our ATM programs for net proceeds of zero and $24.8 million, respectively. The gross proceeds for these issuances were zero and $25.1 million, respectively. We have 4,134,989 shares remaining under our ATM program as of September 30, 2014.

During the three- and nine-month periods ended September 30, 2014, we issued 40,338 and 263,259 shares, respectively, related to the exercise of stock options. These exercises resulted in proceeds of $2.4 million and $11.9 million, respectively. During the three- and nine-month periods ended September 30, 2013, there were no stock options exercised.

During the nine months ended September 30, 2014, 9,292 shares of our 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 nine months ended September 30, 2013, 4,805 shares were acquired for these purposes.

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Document and Entity Information (USD $)	9 Months Ended
	Sep. 30, 2014	Oct. 27, 2014	Jun. 30, 2014
Document Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2014
Document Fiscal Year Focus	2014
Document Fiscal Period Focus	Q3
Trading Symbol	MAA
Entity Registrant Name	MID AMERICA APARTMENT COMMUNITIES INC
Entity Central Index Key	0000912595
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		75,254,249
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Public Float			$ 5,492,980,651
Limited Partner [Member]
Document Information [Line Items]
Entity Registrant Name	MID-AMERICA APARTMENTS, L.P.
Entity Central Index Key	0001581776
Entity Filer Category	Non-accelerated Filer

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Partners' Capital of Mid-America Apartments, L.P.

9 Months Ended

Sep. 30, 2014

Partners' Capital of Mid-America Apartments, L.P. [Abstract]

Partners' Capital Notes Disclosure [Text Block]

Partners' Capital of Mid-America Apartments, L.P.

Interests in MAALP are represented by OP Units. As of September 30, 2014, there were 79,444,389 OP Units outstanding, 75,242,266 or 94.7% of which were owned by MAA, MAALP's general partner. The remaining 4,202,123 OP Units were owned by non-affiliated limited partners ("Class A Limited Partners"). As of September 30, 2013, there were 44,446,933 OP Units outstanding, 42,744,978 or 96.2% of which were owned by MAA and 1,701,955 of which were owned by the Class A Limited Partners. The increase in OP Units was due primarily to the merger with Colonial. In order to complete the merger, on October 1, 2013, we issued 34,491,396 OP Units.

MAA, as the sole general partner of MAALP, has full, complete and exclusive discretion to manage and control the business of the Operating Partnership subject to the restrictions specifically contained within the Partnership Agreement. Unless otherwise stated in the Partnership Agreement of MAALP, this power includes, but is not limited to, acquiring, leasing, or disposing of any real property; constructing buildings and making other improvements to properties owned; borrowing money, modifying or extinguishing current borrowings, issuing evidence of indebtedness, and securing such indebtedness by mortgage, deed of trust, pledge or other lien on the Operating Partnership's assets; and distribution of Operating Partnership cash or other assets in accordance with the Partnership Agreement. MAA can generally, at its sole discretion, issue and redeem OP Units and determine the consideration to be received or the redemption price to be paid, as applicable. The general partner may delegate these and other powers granted if the general partner remains in supervision of the designee.

Under the Partnership Agreement, the Operating Partnership may issue Class A OP Units and Class B OP Units. Class A OP Units may only be held by limited partners who are not affiliated with MAA, in its capacity as general partner of the Operating Partnership, while Class B OP Units may only be held by MAA, in its capacity as general partner of the Operating Partnership, and as of September 30, 2014, a total of 4,202,123 Class A OP Units in the Operating Partnership were held by limited partners unaffiliated with MAA, while a total of 75,242,266 Class B OP Units were held by MAA. In general, the limited partners do not have the power to participate in the management or control of the Operating Partnership's business except in limited circumstances including changes in the general partner and protective rights if the general partner acts outside of the provisions provided in the Partnership Agreement. The transferability of Class A OP Units is also limited by the Partnership Agreement.

Net income is allocated to the general partner and limited partners based on their respective ownership percentages of the Operating Partnership. Issuance or redemption of additional Class A OP Units or Class B OP Units changes the relative ownership percentage of the partners. The issuance of Class B OP Units generally occurs when MAA issues common stock and the proceeds from that issuance are contributed to the Operating Partnership in exchange for the issuance to MAA of a number of OP Units equal to the number of shares of common stock issued. Likewise, if MAA repurchases or redeems outstanding shares of common stock, the Operating Partnership generally redeems an equal number of Class B OP Units with similar terms held by MAA for a redemption price equal to the net purchase price of those shares of common stock. At each reporting period, the allocation between general partner capital and limited partner capital is adjusted to account for the change in the respective percentage ownership of the underlying capital of the Operating Partnership. Holders of the Class A OP Units may require MAA to redeem their Class A OP Units, in which case MAA may, at its option, pay the redemption price either in cash (in an amount per Class A OP Unit equal, in general, to the average closing price of MAA's common stock on the New York Stock Exchange over a specified period prior to the redemption date) or by delivering one share of MAA common stock (subject to adjustment under specified circumstances) for each Class A OP Unit so redeemed.

At September 30, 2014, a total of 4,202,123 Class A OP Units were outstanding and redeemable for 4,202,123 shares of MAA common stock or $275,869,375, based on the closing price of MAA’s common stock on September 30, 2014 of $65.65 per share, at MAA’s option. At September 30, 2013, a total of 1,701,955 Class A OP Units were outstanding and redeemable for 1,701,955 shares of MAA common stock or $106,372,188, based on the closing price of MAA’s common stock on September 30, 2013 of $62.50 per share, at MAA’s option.

The Operating Partnership pays the same per unit distribution in respect to the OP Units as the per share dividend MAA pays in respect to its common stock.

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Condensed Consolidated Balance Sheets (Parenthetical) (USD $)	Sep. 30, 2014 Parent Company [Member]	Dec. 31, 2013 Parent Company [Member]	Sep. 30, 2014 Limited Partner [Member]	Dec. 31, 2013 Limited Partner [Member]
Common stock, par value per share	$ 0.01	$ 0.01
Common stock, shares authorized	100,000,000	100,000,000
Common stock, shares issued	75,242,266	74,830,726
Common stock, shares outstanding	75,242,266	74,830,726
General Partners' Capital Account, Units Outstanding			75,242,266	74,830,726
Limited Partners' Capital Account, Units Outstanding			4,202,123	4,227,384

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MAA Equity

9 Months Ended

Sep. 30, 2014

MAA Equity [Abstract]

Consolidated Statements of Equity [Text Block]

MAA Equity

Total equity and its components for the nine-month periods ended September 30, 2014 and 2013 were as follows (dollars in thousands, except per share and per unit data):

	Mid-America Apartment Communities, Inc. Shareholders
	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, 2013	$	747	$	3,599,549		$	(653,593	)	$	108	$	166,726		$	3,113,537
Net income						113,455					6,364			119,819
Other comprehensive income - derivative instruments (cash flow hedges)									288		15			303
Issuance and registration of common shares	2		726											728
Shares repurchased and retired	—		(456		)									(456		)
Exercise of stock options	3		11,913											11,916
Shares issued in exchange for units	—		992								(992		)	—
Shares issued in exchange from redeemable stock			998											998
Redeemable stock fair market value						(286		)						(286		)
Adjustment for noncontrolling interest ownership in operating partnership			(55		)						55			—
Amortization of unearned compensation			3,180											3,180
Dividends on common stock ($2.19 per share)						(164,598		)			—			(164,598		)
Dividends on noncontrolling interest units ($2.19 per unit)											(9,209		)	(9,209		)
EQUITY BALANCE SEPTEMBER 30, 2014	$	752	$	3,616,847		$	(705,022	)	$	396	$	162,959		$	3,075,932

	Mid-America Apartment Communities, Inc. Shareholders
	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, 2012	$	422	$	1,542,999		$	(603,315	)	$	(26,054	)	$	31,058		$	945,110
Net income						124,553						4,536			129,089
Other comprehensive income - derivative instruments (cash flow hedges)									21,455			739			22,194
Issuance and registration of common shares	4		25,034												25,038
Shares repurchased and retired	—		(682		)										(682		)
Shares issued in exchange for units	1		549									(550		)	—
Redeemable stock fair market value						209									209
Adjustment for noncontrolling interest ownership in operating partnership			(7,418		)							7,418			—
Amortization of unearned compensation			1,729												1,729
Dividends on common stock ($2.085 per share)						(89,109		)				—			(89,109		)
Dividends on noncontrolling interest units ($2.085 per unit)												(3,557		)	(3,557		)
EQUITY BALANCE SEPTEMBER 30, 2013	$	427	$	1,562,211		$	(567,662	)	$	(4,599	)	$	39,644		$	1,030,021

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Earnings Per OP Unit of MAALP

9 Months Ended

Sep. 30, 2014

Earnings Per OP Unit of MAALP [Abstract]

Earnings Per Unit [Text Block]

Earnings per OP Unit of MAALP

Basic earnings per OP Unit is computed by dividing net income available for common unitholders by the weighted average number of units outstanding during the period. All outstanding unvested restricted share awards contain rights to non-forfeitable dividends and participate in undistributed earnings with common unitholders and, accordingly, are considered participating securities that are included in the two-class method of computing basic earnings per OP unit. Diluted earnings per OP Unit reflects the potential dilution that could occur if securities or other contracts to issue OP Units were exercised or converted into OP Units. A reconciliation of the numerators and denominators of the basic and diluted earnings per unit computations for the three and nine months ended September 30, 2014 and 2013 is presented below:

(dollars and units in thousands, except per unit amounts)	Three months ended September 30,								Nine months ended September 30,
	2014				2013				2014				2013
Units Outstanding
Weighted average common units - basic	79,263				44,408				79,148				44,293
Effect of dilutive securities	—			(1)	—			(1)	—			(1)	53
Weighted average common units - diluted	79,263				44,408				79,148				44,346
Calculation of Earnings per Unit - basic
Income from continuing operations	$	70,331			$	16,297			$	113,088			$	52,734
Income from continuing operations allocated to unvested restricted shares	(130		)		(14		)		(209		)		(46		)
Income from continuing operations available for common unitholders, adjusted	$	70,201			$	16,283			$	112,879			$	52,688
Income from discontinued operations	$	388			$	29,778			$	6,731			$	64,634
Income from discontinued operations allocated to unvested restricted shares	(1		)		(25		)		(12		)		(56		)
Income from discontinued operations available for common unitholders, adjusted	$	387			$	29,753			$	6,719			$	64,578
Weighted average common units - basic	79,263				44,408				79,148				44,293
Earnings per unit - basic:	$	0.89			$	1.04			$	1.51			$	2.65
Calculation of Earnings per Unit - diluted
Income from continuing operations	$	70,331			$	16,297			$	113,088			$	52,734
Income from continuing operations allocated to unvested restricted shares	(130		)	(1)	(14		)	(1)	(209		)	(1)	—
Income from continuing operations available for common unitholders, adjusted	$	70,201			$	16,283			$	112,879			$	52,734
Income from discontinued operations	$	388			$	29,778			$	6,731			$	64,634
Income from discontinued operations allocated to unvested restricted shares	(1		)	(1)	(25		)	(1)	(12		)	(1)	—
Income from discontinued operations available for common unitholders, adjusted	$	387			$	29,753			$	6,719			$	64,634
Weighted average common units - diluted	79,263				44,408				79,148				44,346
Earnings per unit - diluted:	$	0.89			$	1.04			$	1.51			$	2.65

⁽¹⁾ Dilutive securities and the related income are not included in the diluted earnings per unit calculations as they were not dilutive.

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Recent Accounting Pronouncements

9 Months Ended

Sep. 30, 2014

Notes To Financial Statements [Abstract]

Recent Accounting Pronouncements

 Recent Accounting Pronouncements

Impact of Recently Issued Accounting Standards

In August 2014, the FASB issued ASU 2014-15, Disclosure of Uncertainties about an Entity's Ability to Continue as a Going Concern. ASU 2014-15 requires an entity's management to evaluate whether there are conditions or events, considered in the aggregate, that raise substantial doubt about the entity's ability to continue as a going concern within one year after the date that the financial statements are issued. If substantial doubt exists, the entity must disclose the principal conditions or events that raised the substantial doubt, management's evaluation of the significance of these conditions, and management's plan for alleviating the substantial doubt about the entity's ability to continue as a going concern. ASU 2014-15 is effective for annual periods ending after December 15, 2016; however, early adoption is permitted. The Company is currently in the process of evaluating the impact of the ASU, but does not expect the adoption of this ASU to have a material impact on our consolidated financial position or results of operations taken as a whole.

In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers, which amended the existing accounting standards for revenue recognition. ASU 2014-09 establishes principles for recognizing revenue upon the transfer of promised goods or services to customers, in an amount that reflects the expected consideration received in exchange for those goods or services. It is effective for annual reporting periods beginning after December 15, 2016. Early adoption is not permitted. The amendments may be applied retrospectively to each prior period presented or retrospectively with the cumulative effect recognized as of the date of initial application. The Company is currently in the process of evaluating the impact of adoption of the ASU on its consolidated financial condition and results of operations taken as a whole, but does not expect the impact to be material.

In April 2014, the FASB issued ASU No. 2014-08, Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity. ASU 2014-08 raises the threshold for disposals to qualify as discontinued operations. It also requires additional disclosures for discontinued operations and new disclosures for individually material disposal transactions that do not meet the definition of a discontinued operation. The ASU is effective for fiscal years beginning after December 15, 2014, and interim periods within those years; however, early adoption is permitted beginning in the first quarter of 2014. We adopted ASU 2014-08 during the period ending March 31, 2014. The adoption of ASU 2014-08 required us to not classify certain disposals occurring during 2014 as discontinued operations.

In January 2013, the FASB issued ASU No. 2013-01, Clarifying the Scope of Disclosures about Offsetting Assets and Liabilities. ASU 2013-01 clarifies that the scope of ASU 2011-11, Disclosures about Offsetting Assets and Liabilities, would apply to derivatives accounted for in accordance with FASB ASC 815, Derivatives and Hedging, including bifurcated embedded derivatives, repurchase agreements and reverse repurchase agreements, and securities borrowing and securities lending transactions that are either offset in accordance with ASC 210-20-45 or ASC 815-10-45 or subject to an enforceable master netting arrangement or similar agreement. This ASU is effective for fiscal years beginning on or after January 1, 2013 and interim periods within those annual periods. We adopted ASU 2013-01 during the period ended March 31, 2013. The adoption of ASU 2013-01 has not had a material impact on our consolidated financial condition or results of operations taken as a whole.

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Legal Proceedings

9 Months Ended

Sep. 30, 2014

Legal Proceedings [Abstract]

Legal Matters and Contingencies [Text Block]

Legal Proceedings

The Company (by virtue of its merger with Colonial) and Colonial LP along with multiple other parties, are named defendants in lawsuits arising out of alleged construction deficiencies with respect to condominium units at Regatta at James Island in Charleston, South Carolina. Regatta at James Island property was developed by certain of the Company's subsidiaries prior to MAA's merger with Colonial and constructed by Colonial Construction Services, LLC. The condominiums were constructed in 2006 and all 212 units were sold. The lawsuits, one filed on behalf of the condominium homeowners association and one filed by three of the unit owners (purportedly on behalf of all unit owners), were filed in South Carolina state court (Charleston County) in August 2012, against various parties involved in the development and construction of the Regatta at James Island property, including the contractors, subcontractors, architect, developer, and product manufacturers. The plaintiffs are seeking damages resulting primarily from alleged construction deficiencies, but the amount plaintiffs seek to recover has not been disclosed. The lawsuits are currently in discovery. The Company is continuing to investigate the matter and evaluate its options and intends to vigorously defend itself against these claims. No assurance can be given that the matter will be resolved favorably to the Company. The Companyhas included in its loss contingency an estimate of probable loss in connection with this matter, but currently cannot reasonably estimate any further possible loss, or any further range of reasonably possible loss, in connection with this matter.

In addition, the Company is subject to various other legal proceedings and claims that arise in the ordinary course of its business operations. Matters which arise out of allegations of bodily injury, property damage, and employment practices are generally covered by insurance. While the resolution of these other matters cannot be predicted with certainty, management currently believes the final outcome of such matters will not have a material adverse effect on the financial position, results of operations or cash flows of the Company.

Loss Contingencies

The outcomes of the claims, disputes and legal proceedings described or referenced above are subject to significant uncertainty. The Company records an accrual for loss contingencies when a loss is probable and the amount of the loss can be reasonably estimated. The Company reviews these accruals quarterly and makes revisions based on changes in facts and circumstances. When a loss contingency is not both probable and reasonably estimable, the Company does not accrue the loss. However, for material loss contingencies, if the unrecorded loss (or an additional loss in excess of the accrual) is at least a reasonable possibility and material, then the Company discloses a reasonable estimate of the possible loss, or range of loss, if such reasonable estimate can be made. If the Company cannot make a reasonable estimate of the possible loss, or range of loss, then that is disclosed.

The assessment of whether a loss is probable or a reasonable possibility, and whether the loss or range of loss is reasonably estimable, often involve a series of complex judgments about future events. Among the factors that the Company considers in this assessment, including with respect to the matters disclosed in this Note, are the nature of existing legal proceedings and claims, the asserted or possible damages or loss contingency (if reasonably estimable), the progress of the matter, existing law and precedent, the opinions or views of legal counsel and other advisers, the Company's experience in similar matters, the facts available to the Company at the time of assessment, and how the Company intends to respond, or has responded, to the proceeding or claim. The Company's assessment of these factors may change over time as individual proceedings or claims progress. For matters where the Company is not currently able to reasonably estimate a range of reasonably possible loss, the factors that have contributed to this determination include the following: (i) the damages sought are indeterminate; (ii) the proceedings are in the early stages; (iii) the matters involve novel or unsettled legal theories or a large or uncertain number of actual or potential cases or parties; and/or (iv) discussions with the parties in matters that are expected ultimately to be resolved through negotiation and settlement have not reached the point where the Company believes a reasonable estimate of loss, or range of loss, can be made. In such instances, the Company believes that there is considerable uncertainty regarding the timing or ultimate resolution of such matters, including a possible eventual loss or business impact, if any.

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Derivatives and Hedging Activities

9 Months Ended

Sep. 30, 2014

Notes To Financial Statements [Abstract]

Derivatives and Hedging Activities

Derivatives and Hedging Activities

Risk Management Objective of Using Derivatives

We are exposed to certain risks arising from both our business operations and economic conditions. We principally manage our exposures to a wide variety of business and operational risks through management of our core business activities. We manage economic risks, including interest rate, liquidity and credit risk, primarily by managing the amount, sources and duration of our debt funding and the use of derivative financial instruments. Specifically, we enter into derivative financial instruments to manage exposures that arise from business activities that result in the payment of future contractual and forecasted cash amounts, principally related to our borrowings, the value of which are determined by changing interest rates, related cash flows and other factors.

Cash Flow Hedges of Interest Rate Risk

Our objectives in using interest rate derivatives are to add stability to interest expense and to manage our exposure to interest rate movements. To accomplish this objective, we use interest rate swaps and interest rate caps as part of our interest rate risk management strategy. Interest rate swaps designated as cash flow hedges involve the receipt of variable amounts from a counterparty in exchange for us making fixed-rate payments over the life of the agreements without exchange of the underlying notional amount. Interest rate caps designated as cash flow hedges involve the receipt of variable amounts from a counterparty if interest rates rise above the strike rate on the contract in exchange for an up front premium.

The effective portion of changes in the fair value of derivatives designated and that qualify as cash flow hedges is recorded in accumulated other comprehensive income and is subsequently reclassified into earnings in the period that the hedged forecasted transaction affects earnings. During the three and nine months ended September 30, 2014 and 2013, such derivatives were used to hedge the variable cash flows associated with existing variable-rate debt and forecasted issuances of fixed-rate debt.  The ineffective portion of the change in fair value of the derivatives is recognized directly in earnings. During the three months ended September 30, 2014 and 2013, we recorded ineffectiveness of $25,000 (increase to interest expense) and $1,000 (increase to interest expense), respectively, and during the nine months ended September 30, 2014 and 2013, we recorded ineffectiveness of $88,000 (increase to interest expense) and $26,000 (decrease to interest expense), respectively, mainly attributable to a mismatch in the underlying indices of the derivatives and the hedged interest payments made on our variable-rate debt and due to the designation of acquired interest rate swaps with a non-zero fair value at inception.

Amounts reported in accumulated other comprehensive income related to derivatives designated as qualifying cash flow hedges will be reclassified to interest expense as interest payments are made on our variable-rate or fixed-rate debt. During the next 12 months, we estimate that an additional $7.5 million will be reclassified to earnings as an increase to interest expense, which primarily represents the difference between our fixed interest rate swap payments and the projected variable interest rate swap payments.

As of September 30, 2014, we had the following outstanding interest rate derivatives that were designated as cash flow hedges of interest rate risk:

Interest Rate Derivative	Number of Instruments	Notional
Interest Rate Caps	6	$	165,000,000
Interest Rate Swaps	9	$	625,000,000

Non-Designated Hedges

Derivatives not designated as hedges are not speculative and are used to manage the Company's exposure to interest rate movements and other identified risks but do not meet the strict hedge accounting requirements of FASB ASC 815, Derivatives and Hedging. Changes in the fair value of derivatives not designated in hedging relationships are recorded directly in earnings and resulted in a loss of $10,000 for the three months ended September 30, 2014 and a loss of $138,000 for the nine months ended September 30, 2014. We recorded a loss of $5,000 for the three months ended September 30, 2013 and a loss of $8,000 for the nine months ended September 30, 2013.

As of September 30, 2014, we had the following outstanding interest rate derivatives that were not designated as hedges:

Interest Rate Derivative	Number of Instruments	Notional
Interest rate caps	14	$	90,326,031

Tabular Disclosure of Fair Values of Derivative Instruments on the Balance Sheet

The table below presents the fair value of our derivative financial instruments as well as their classification on the Consolidated Balance Sheet as of September 30, 2014 and December 31, 2013, respectively.

Fair Values of Derivative Instruments on the Consolidated Balance Sheet as of September 30, 2014 and

December 31, 2013 (dollars in thousands)

	Asset Derivatives					Liability Derivatives
		September 30, 2014		December 31, 2013			September 30, 2014		December 31, 2013
Derivatives designated as hedging instruments	Balance Sheet Location	Fair Value		Fair Value		Balance Sheet Location	Fair Value		Fair Value
Interest rate contracts	Other assets	$	117	$	396	Fair market value of interest rate swaps	$	13,132	$	20,015
Total derivatives designated as hedging instruments		$	117	$	396		$	13,132	$	20,015
Derivatives not designated as hedging instruments
Interest rate contracts	Other assets	$	14	$	49		$	—	$	—
Total derivatives not designated as hedging instruments		$	14	$	49		$	—	$	—

Tabular Disclosure of the Effect of Derivative Instruments on the Statements of Operations

The table below presents the effect of our derivative financial instruments on the Consolidated Statements of Operations for the three and nine months ended September 30, 2014 and 2013, respectively.

Effect of Derivative Instruments on the Consolidated Statements of Operations for the

Three and nine months ended September 30, 2014 and 2013 (dollars in thousands)

Derivatives in Cash Flow Hedging Relationships	Amount of  Gain or (Loss) Recognized in  OCI on Derivative  (Effective Portion)						Location of Gain or (Loss) Reclassified  from Accumulated OCI into Income (Effective Portion)	Amount of   Gain or (Loss) Reclassified from Accumulated  OCI into Income  (Effective Portion)						Location of Gain or (Loss) Recognized in Income on Derivative (Ineffective Portion and Amount Excluded from Effectiveness Testing)	Amount of Gain or (Loss) Recognized in Income on Derivative (Ineffective Portion and Amount Excluded from Effectiveness Testing)
Three months ended September 30,	2014			2013				2014			2013				2014			2013
Interest rate contracts	$	(696	)	$	(1,826	)	Interest expense	$	(2,589	)	$	(3,621	)	Interest expense	$	(25	)	$	(1	)
Total derivatives in cash flow hedging relationships	$	(696	)	$	(1,826	)		$	(2,589	)	$	(3,621	)		$	(25	)	$	(1	)
Nine months ended September 30,
Interest rate contracts	$	(9,096	)	$	10,096		Interest expense	$	(9,399	)	$	(12,098	)	Interest expense	$	(88	)	$	26
Total derivatives in cash flow hedging relationships	$	(9,096	)	$	10,096			$	(9,399	)	$	(12,098	)		$	(88	)	$	26
Derivatives Not Designated as Hedging Instruments
Three months ended September 30,														Location of Gain or (Loss) Recognized in Income	2014			2013
Interest rate contracts														Interest expense	$	(10	)	$	(5	)
Total															$	(10	)	$	(5	)
Nine months ended September 30,
Interest rate contracts														Interest expense	$	(138	)	$	(8	)
Total															$	(138	)	$	(8	)

Credit-Risk-Related Contingent Features

As of September 30, 2014, derivatives that were in a net liability position and subject to credit-risk-related contingent features had a termination value of $14.3 million, which includes accrued interest but excludes any adjustment for nonperformance risk. These derivatives had a fair value, gross of asset positions, of $13.1 million at September 30, 2014.

Certain of our derivative contracts contain a provision where if we default on any of our indebtedness, including default where repayment of the indebtedness has not been accelerated by the lender, then we could also be declared in default on our derivative obligations. As of September 30, 2014, we had not breached the provisions of these agreements.  If we had breached these provisions, we could have been required to settle our obligations under the agreements at their termination value of $1.0 million.

Certain of our derivative contracts contain a provision where we could be declared in default on our derivative obligations if repayment of the underlying indebtedness is accelerated by the lender due to our default on the indebtedness. As of September 30, 2014, we had not breached the provisions of these agreements. If we had breached theses provisions, we could have been required to settle our obligations under the agreements at the termination value of $12.5 million.

Certain of our derivative contracts are credit enhanced by FNMA.  These derivative contracts require that our credit enhancing party maintain credit ratings above a certain level.  If our credit support providers were downgraded below Baa1 by Moody’s or BBB+ by Standard & Poor’s, or S&P, we may be required to either post 100 percent collateral or settle the obligations at their termination value of $1.7 million as of September 30, 2014. FNMA is currently rated Aaa by Moody’s and AA+ by S&P, and therefore, the provisions of this agreement have not been breached, and no collateral has been posted related to these agreements as of September 30, 2014.

Although our derivative contracts are subject to master netting arrangements, which serve as credit mitigants to both us and our counterparties under certain situations, we do not net our derivative fair values or any existing rights or obligations to cash collateral on the Consolidated Balance Sheet.

The table below presents a gross presentation, the effects of offsetting, and a net presentation of our derivatives as of September 30, 2014 and December 31, 2013. The net amounts of derivative assets or liabilities can be reconciled to the Tabular Disclosure of Fair Values of Derivative Instruments above, which also provides the location that derivative assets and liabilities are presented on the Consolidated Balance Sheet (dollars in thousands):

Offsetting of Derivative Assets
As of September 30, 2014
							Gross Amounts Not Offset in the Statement of Financial Position
	Gross Amounts of Recognized Assets		Gross Amounts Offset in the Statement of Financial Position		Net Amounts of Assets presented in the Statement of Financial Position		Financial Instruments		Cash Collateral Received		Net Amount
Derivatives	$	131	$	—	$	131	$	—	$	—	$	131
Offsetting of Derivative Liabilities
As of September 30, 2014
							Gross Amounts Not Offset in the Statement of Financial Position
	Gross Amounts of Recognized Liabilities		Gross Amounts Offset in the Statement of Financial Position		Net Amounts of Liabilities presented in the Statement of Financial Position		Financial Instruments		Cash Collateral Posted		Net Amount
Derivatives	$	13,132	$	—	$	13,132	$	—	$	—	$	13,132
Offsetting of Derivative Assets
As of December 31, 2013
							Gross Amounts Not Offset in the Statement of Financial Position
	Gross Amounts of Recognized Assets		Gross Amounts Offset in the Statement of Financial Position		Net Amounts of Assets presented in the Statement of Financial Position		Financial Instruments		Cash Collateral Received		Net Amount
Derivatives	$	444	$	—	$	444	$	—	$	—	$	444
Offsetting of Derivative Liabilities
As of December 31, 2013
							Gross Amounts Not Offset in the Statement of Financial Position
	Gross Amounts of Recognized Liabilities		Gross Amounts Offset in the Statement of Financial Position		Net Amounts of Liabilities presented in the Statement of Financial Position		Financial Instruments		Cash Collateral Posted		Net Amount
Derivatives	$	20,015	$	—	$	20,015	$	—	$	—	$	20,015

Other Comprehensive Income

Our other comprehensive income consists entirely of gains and losses attributable to the effective portion of our cash flow hedges. The chart below shows the change in the balance for the nine months ended September 30, 2014 and 2013:

Changes in Accumulated Other Comprehensive Income by Component
	Affected Line Item in the Consolidated Statements Of Operations	Gains and Losses on Cash Flow Hedges
		for the nine months ended September 30,
		2014			2013
Beginning balance		$	108		$	(26,054	)
Other comprehensive (loss) income before reclassifications		(9,096		)	10,096
Amounts reclassified from accumulated other comprehensive income (interest rate contracts)	Interest expense	9,399			12,098
Net current-period other comprehensive loss attributable to noncontrolling interest		(15		)	(739		)
Net current-period other comprehensive income attributable to MAA		288			21,455
Ending balance		$	396		$	(4,599	)

See also discussions in Item 1. Financial Statements – Notes to Consolidated Financial Statements, Note 9.

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MAA Summary of Discontinued Operations (Detail) (Parent Company [Member], USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Discontinued Operations [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Rental revenues	$ 795	$ 2,295	$ 2,384	$ 11,830
Other revenues	(2)	243	(7)	1,088
Total revenues	793	2,538	2,377	12,918
Property operating expenses	256	1,132	856	5,496
Depreciation and amortization	0	342	42	2,553
Interest expense and other	49	92	126	418
Total expenses	305	1,566	1,024	8,467
Income from discontinued operations before gain on sale	488	972	1,353	4,451
Net loss on insurance and other settlement proceeds on discontinued operations	3	(1)	0	(5)
Gain on sale of discontinued operations	(103)	28,788	5,378	71,909
Income from discontinued operations	388	29,759	6,731	76,355
Continuing Operations [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Attributable to MAA	66,609	15,665	107,083	50,761
Attributable to noncontrolling interest	3,722	632	6,005	1,973
Income from continuing operations	70,331	16,297	113,088	52,734
Discontinued Operations [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Attributable to MAA	367	28,619	6,372	73,792
Attributable to noncontrolling interest	21	1,140	359	2,563
Income from discontinued operations	$ 388	$ 29,759	$ 6,731	$ 76,355

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MAALP Capital

9 Months Ended

Sep. 30, 2014

MAALP Capital [Abstract]

Consolidated Statements of Changes in Capital [Text Block]

MAALP Capital

Total capital and its components for the nine-month periods ended September 30, 2014 and 2013 were as follows (dollars in thousands, except per unit data):

	Mid-America Apartments, L.P. Unitholders
	Limited Partner			General Partner			Accumulated Other Comprehensive Income (Loss)		Total Partnership Capital
CAPITAL BALANCE DECEMBER 31, 2013	$	166,746		$	2,946,598		$	174	$	3,113,518
Net income	6,364			113,455					119,819
Other comprehensive income - derivative instruments (cash flow hedges)							303		303
Issuance of units	—			728					728
Units repurchased and retired				(456		)			(456		)
Exercise of unit options				11,916					11,916
General partner units issued in exchange for limited partner units	(992		)	992					—
Units issued in exchange from redeemable units				998					998
Redeemable units fair market value adjustment				(286		)			(286		)
Adjustment for limited partners' capital at redemption value	28			(28		)			—
Amortization of unearned compensation				3,180					3,180
Distributions ($2.19 per unit)	(9,209		)	(164,598		)			(173,807		)
CAPITAL BALANCE SEPTEMBER 30, 2014	$	162,937		$	2,912,499		$	477	$	3,075,913

	Mid-America Apartments, L.P. Unitholders
	Limited Partner			General Partner			Accumulated Other Comprehensive Income (Loss)			Total Partnership Capital
CAPITAL BALANCE DECEMBER 31, 2012	$	38,154		$	927,734		$	(26,881	)	$	939,007
Net income	4,518			112,850						117,368
Other comprehensive income - derivative instruments (cash flow hedges)							22,193			22,193
Issuance of units				25,038						25,038
Units repurchased and retired				(682		)				(682		)
General partner units issued in exchange for limited partner units	(550		)	550						—
Redeemable units fair market value adjustment				209						209
Adjustment for limited partners capital at redemption value	1,218			16,597						17,815
Amortization of unearned compensation				1,729						1,729
Distributions ($2.085 per unit)	(3,557		)	(89,109		)				(92,666		)
CAPITAL BALANCE SEPTEMBER 30, 2013	$	39,783		$	994,916		$	(4,688	)	$	1,030,011

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Borrowings

9 Months Ended

Sep. 30, 2014

Notes To Financial Statements [Abstract]

Notes Payable

Borrowings

On September 30, 2014 and December 31, 2013, we had total indebtedness of approximately $3.43 billion and $3.47 billion, respectively. Our indebtedness as of September 30, 2014 consisted of both conventional and tax exempt debt. Borrowings were made through individual property mortgages as well as company-wide credit facilities and notes. We utilize both secured and unsecured debt.

On August 7, 2013, our Operating Partnership entered into a $500 million unsecured revolving credit facility agreement with KeyBank National Association and thirteen other banks. This agreement amends our Operating Partnership's previous unsecured credit facility with KeyBank. Interest is paid using an investment grade pricing grid using LIBOR plus a spread of 0.90% to 1.70%, currently bearing interest at 1.10%. As of September 30, 2014, we had zero borrowings under this facility.

On October 16, 2013, MAALP issued $350 million in aggregate principal amount of notes, maturing on October 15, 2023 with an interest rate of 4.3% per annum (the "2023 Notes"). The purchase price paid by the initial purchasers was 99.047% of the principal amount. The 2023 Notes are general unsecured senior obligations of MAALP and rank equally in right of payment with all other senior unsecured indebtedness of MAALP. Interest on the 2023 Notes is payable on April 15 and October 15 of each year, beginning on April 15, 2014. The net proceeds from the offering after deducting the original issue discount of approximately $3.3 million and underwriting commissions and expenses of approximately $2.3 million was approximately $344.4 million. The 2023 Notes have been reflected net of discount in the consolidated balance sheet. The Company also entered into three forward swaps related to the bond financing totaling $150 million, which resulted in a total effective interest rate of 4.15%.

On December 13, 2013, MAALP completed a series of exchange offers (the “Exchange Offers”) pursuant to which it exchanged $154.2 million aggregate principal amount of 6.25% Senior Notes due 2014, $169.2 million aggregate principal amount of 5.50% Senior Notes due 2015 and $68.1 million aggregate principal amount of 6.05% Senior Notes due 2016 (collectively, the “Existing Notes”) issued by Colonial Realty Limited Partnership, a Delaware limited partnership and wholly owned subsidiary of MAALP, for $154.2 million aggregate principal amount of MAALP’s new 6.25% Senior Notes due 2014 (the “2014 Notes”), $169.1 million aggregate principal amount of MAALP’s new 5.50% Senior Notes due 2015 (the “2015 Notes”) and $68.1 million aggregate principal amount of MAALP’s new 6.05% Senior Notes due 2016 (the “2016 Notes” and together with the 2014 Notes and the 2015 Notes, the “Exchange Notes”), plus approximately $975,000 in cash.

The Exchange Notes are senior unsecured obligations of MAALP and will rank equally in right of payment with all of MAALP’s other existing and future senior unsecured indebtedness. Interest on the 2014 Notes will accrue from, and including, December 15, 2013 and was payable on June 15, 2014, which was the maturity date for the 2014 Notes. Interest on the 2015 Notes will accrue from, and including, October 1, 2013 and will be payable semiannually on April 1 and October 1 of each year, beginning on April 1, 2014. Interest on the 2016 Notes accrued from, and including, September 1, 2013 and was paid on March 1, 2014. Interest payments will be payable semiannually on March 1 and September 1 of each year, beginning on March 1, 2014. In certain circumstances described below MAALP may be required to pay additional interest on the Exchange Notes.

All of the Existing Notes tendered into the Exchange Offers were cancelled in connection with the settlement of the Exchange Offers. In connection with the issuance and sale of the Exchange Notes, MAALP also entered into three separate registration rights agreements, each dated as of December 13, 2013, and each with J.P. Morgan Securities LLC, the dealer manager in the Exchange Offers (the “Registration Rights Agreements”). Under the Registration Rights Agreements, MAALP agreed to use commercially reasonable efforts to complete exchange offers registered under the Securities Act pursuant to which MAALP will offer to issue new exchange notes containing terms substantially similar in all material respects to the Exchange Notes (except that the exchange notes will not contain terms with respect to transfer restrictions or any increase in annual interest rate) in exchange for the Exchange Notes. MAALP also agreed, if it determines that a registered exchange offer is not available or specified other circumstances occur, to use commercially reasonable efforts to file and have become effective a shelf registration statement relating to resales of the Exchange Notes. MAALP would be obligated to pay additional interest of up to 0.50% per annum on the Exchange Notes if it had not completed the exchange offers within 270 days after the issue date of the Exchange Notes and in other specified circumstances. We completed the exchange within the 270 day window and did not incur the additional interest.

On June 10, 2014, MAALP issued $400 million in aggregate principal amount of notes, maturing on June 15, 2024 with an interest rate of 3.75% per annum (the "2024 Notes"). The purchase price paid by the initial purchasers was 98.873% of the principal amount. The 2024 Notes are general unsecured senior obligations of MAALP and rank equally in right of payment with all other senior unsecured indebtedness of MAALP. Interest on the 2024 Notes is payable on June 15 and December 15 of each year, beginning on December 15, 2014. The net proceeds from the offering after deducting the original issue discount of approximately $4.5 million and underwriting commissions and expenses of approximately $2.6 million was approximately $392.9 million. The 2024 Notes have been reflected net of discount in the consolidated balance sheet. The Company also entered into five forward swaps related to the bond financing totaling $250 million, which resulted in a total effective interest rate of 3.98%.

The Indenture under which the 2023 and 2024 notes were issued contains certain covenants that, among other things, limit the ability of MAALP and its subsidiaries to incur secured and unsecured indebtedness if not in pro forma compliance with the following negative covenants: (1) total leverage not to exceed 60% of adjusted total assets, (2) secured leverage not to exceed 40% of adjusted total assets and (3) a fixed charge coverage ratio of at least 1.50 to 1. In addition, MAALP is required to maintain at all times unencumbered consolidated total assets of not less than 150% of the aggregate principal amount of its outstanding unsecured debt. At September 30, 2014, MAALP was in compliance with each of these financial covenants.

On July 10, 2014, we paid off a $27.5 million mortgage during our sale of the Greenbrook apartments. We recorded a $2.6 million loss on debt extinguishment due to paying off the mortgage prior to maturity.

We utilize interest rate swaps and interest rate caps to help manage our current and future interest rate risk and entered into 9 interest rate swaps and 6 interest rate caps as of September 30, 2014, representing notional amounts totaling $625.0 million and $165.0 million, respectively. We also held 14 non-designated interest rate caps with notional amounts totaling $90.3 million as of September 30, 2014.

The following table summarizes our outstanding debt structure as of September 30, 2014 (dollars in thousands):

	Borrowed Balance		Effective Rate		Average Contract Maturity
Fixed Rate Secured Debt
Individual property mortgages	$	1,090,496	4.0	%	5/5/2019
FNMA conventional credit facilities	50,000		4.7	%	3/31/2017
Credit facility balances with:
LIBOR-based interest rate swaps	75,000		4.8	%	3/31/2015
Total fixed rate secured debt	$	1,215,496	4.1	%	1/1/2019
Variable Rate Secured Debt (1)
FNMA conventional credit facilities	$	221,585	0.7	%	1/27/2017
FNMA tax-free credit facilities	90,415		0.9	%	7/23/2031
Freddie Mac mortgages	27,096		3.4	%	10/31/2015
Total variable rate secured debt	$	339,096	1.0	%	11/2/2020
Total Secured Debt	$	1,554,592	3.4	%	5/27/2019
Unsecured Debt
Term loans fixed with swaps	$	550,000	3.1	%	11/10/2017
Fixed rate senior bonds	1,325,422		4.5	%	12/3/2021
Total Unsecured Debt	$	1,875,422	4.0	%	9/24/2020
Total Outstanding Debt	$	3,430,014	3.7	%	11/14/2019

⁽¹⁾ Includes capped balances.

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Fair Value Disclosure of Financial Instruments

9 Months Ended

Sep. 30, 2014

Notes To Financial Statements [Abstract]

Fair Value Disclosure of Financial Instruments

 Fair Value Disclosure of Financial Instruments

Cash and cash equivalents, restricted cash, accounts payable, accrued expenses and other liabilities and security deposits are carried at amounts that reasonably approximate their fair value due to their short term nature.

We apply Financial Accounting Standards Board, or FASB, ASC 820 Fair Value Measurements and Disclosures, or ASC 820.ASC 820 defines fair value, establishes a framework for measuring fair value, and expands disclosures about fair value measurements. ASC 820 applies to reported balances that are required or permitted to be measured at fair value under existing accounting pronouncements; accordingly, the standard does not require any new fair value measurements of reported balances.

ASC 820 emphasizes that fair value is a market-based measurement, not an entity-specific measurement.  Therefore, a fair value measurement should be determined based on the assumptions that market participants would use in pricing the asset or liability.  As a basis for considering market participant assumptions in fair value measurements, ASC 820 establishes a fair value hierarchy that distinguishes between market participant assumptions based on market data obtained from sources independent of the reporting entity (observable inputs that are classified within Levels 1 and 2 of the hierarchy) and the reporting entity’s own assumptions about market participant assumptions (unobservable inputs classified within Level 3 of the hierarchy).

Level 1 inputs utilize quoted prices (unadjusted) in active markets for identical assets or liabilities that we have the ability to access. Level 2 inputs are inputs other than quoted prices included in Level 1 that are observable for the asset or liability, either directly or indirectly. Level 2 inputs may include quoted prices for similar assets and liabilities in active markets, as well as inputs that are observable for the asset or liability (other than quoted prices), such as interest rates, foreign exchange rates, and yield curves that are observable at commonly quoted intervals. Level 3 inputs are unobservable inputs for the asset or liability, which are typically based on an entity’s own assumptions, as there is little, if any, related market activity. In instances where the determination of the fair value measurement is based on inputs from different levels of the fair value hierarchy, the level in the fair value hierarchy within which the entire fair value measurement falls is based on the lowest level input that is significant to the fair value measurement in its entirety. Our assessment of the significance of a particular input to the fair value measurement in its entirety requires judgment, and considers factors specific to the asset or liability.

Fixed rate notes payable at September 30, 2014 and December 31, 2013, totaled $2.46 billion and $2.29 billion, respectively, and had estimated fair values of $2.49 billion and $2.30 billion (excluding prepayment penalties), respectively, as of September 30, 2014 and December 31, 2013. The carrying value of variable rate notes payable (excluding the effect of interest rate swap and cap agreements) at September 30, 2014 and December 31, 2013, totaled $0.97 billion and $1.18 billion, respectively, and had estimated fair values of $0.88 billion and $1.12 billion (excluding prepayment penalties), respectively, as of September 30, 2014 and December 31, 2013. The valuation of our debt is determined using widely accepted valuation techniques, including discounted cash flow analysis on the expected cash flows of each debt instrument. This analysis reflects the contractual terms of the debt, and uses observable market-based inputs, including interest rate curves and credit spreads. The fair values of fixed debt are determined by using the present value of future cash outflows discounted with the applicable current market rate plus a credit spread. The fair values of variable debt are determined using the stated variable rate plus the current market credit spread. Our variable rates reset every 30 to 90 days and we conclude that these rates reasonably estimate current market rates. We have determined that inputs used to value our debt fall within Level 2 of the fair value hierarchy and therefore our fair market valuation of debt is considered Level 2 in the fair value hierarchy.

Currently, we use interest rate swaps and interest rate caps (options)to manage our interest raterisk. The valuation of these instruments is determined using widely accepted valuation techniques, including discounted cash flow analysis on the expected cash flows of each derivative. This analysis reflects the contractual terms of the derivatives, including the period to maturity, and uses observable market-based inputs, including interest rate curves and implied volatilities. The fair values of interest rate swaps are determined using the market standard methodology of netting the discounted future fixed cash receipts (or payments) and the discounted expected variable cash payments (or receipts). The variable cash payments (or receipts) are based on an expectation of future interest rates (forward curves) derived from observable market interest rate curves.

The fair values of interest rate options are determined using the market standard methodology of discounting the future expected cash receipts that would occur if variable interest rates rise above the strike rate of the caps. The variable interest rates used in the calculation of projected receipts on the cap are based on an expectation of future interest rates derived from observable market interest rate curves and volatilities.

To comply with the provisions of ASC 820, we incorporate credit valuation adjustments to appropriately reflect both our own nonperformance risk and the respective counterparty’s nonperformance risk in the fair value measurements. In adjusting the fair value of our derivative contracts for the effect of nonperformance risk, we have considered the impact of netting and any applicable credit enhancements, such as collateral postings, thresholds, mutual puts and guarantees. In conjunction with the FASB's fair value measurement guidance, we made an accounting policy election to measure the credit risk of our derivative financial instruments that are subject to master netting agreements on a net basis by counterparty portfolio.

We have determined that the majority of the inputs used to value our derivatives fall within Level 2 of the fair value hierarchy, and as a result, all of our derivatives held as of September 30, 2014 and December 31, 2013 were classified as Level 2 of the fair value hierarchy.

The table below presents our assets and liabilities measured at fair value on a recurring basis as of September 30, 2014 and December 31, 2013, aggregated by the level in the fair value hierarchy within which those measurements fall.

Assets and Liabilities Measured at Fair Value on a Recurring Basis at September 30, 2014

(dollars in thousands)

	Quoted Prices in Active Markets for Identical Assets and Liabilities (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Balance at
							September 30, 2014
Assets
Derivative financial instruments	$	—	$	131	$	—	$	131
Liabilities
Derivative financial instruments	$	—	$	13,132	$	—	$	13,132

Assets and Liabilities Measured at Fair Value on a Recurring Basis at December 31, 2013

(dollars in thousands)

	Quoted Prices in Active Markets for Identical Assets and Liabilities (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Balance at
							December 31, 2013
Assets
Derivative financial instruments	$	—	$	444	$	—	$	444
Liabilities
Derivative financial instruments	$	—	$	20,015	$	—	$	20,015

The fair value estimates presented herein are based on information available to management as of September 30, 2014 and December 31, 2013.  These estimates are not necessarily indicative of the amounts we could ultimately realize.  See also discussions in Item 1. Financial Statements – Notes to Consolidated Financial Statements, Note 8.

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Assets for Reportable Segment (Detail) (Parent Company [Member], USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	$ 6,783,014	$ 6,841,925
Large Market Same Store
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	1,227,413	1,252,575
Secondary Market Same Store
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	764,383	796,697
Non-Same Store and Other
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	4,637,072	4,638,892
Corporate assets
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	$ 154,146	$ 153,761

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Subsequent Events - Additional Information (Detail) (USD $) In Millions, unless otherwise specified					9 Months Ended		3 Months Ended
	Sep. 30, 2014	Sep. 30, 2014 Highlands of West Village [Member] sqft Apartments	Sep. 30, 2014 Bulverde Oaks [Member] Apartments	Sep. 30, 2014 Term Loan [Member]	Sep. 30, 2014 Minimum [Member] Term Loan [Member]	Sep. 30, 2014 Maximum [Member] Term Loan [Member]	Dec. 31, 2014 Notes payable Minimum [Member] Term Loan [Member]	Dec. 31, 2014 Notes payable Maximum [Member] Term Loan [Member]
Subsequent Event [Line Items]
Debt Instrument, Face Amount				$ 150
Debt Instrument, Basis Spread on Variable Rate					1.10%	2.05%	0.90%	1.90%
Number of Units in Real Estate Property	81,137	480	328
Square Footage of Real Estate Property		63,000

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Revenues and NOI for Reportable Segment (Detail) (Parent Company [Member], USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Jun. 30, 2014	Sep. 30, 2014	Sep. 30, 2013
Revenues
Total property revenues	$ 248,770	$ 135,260		$ 736,653	$ 394,662
Management fee income	11	146		169	465
Total operating revenues	248,781	135,406		736,822	395,127
Net Operating Income	148,676	80,927		442,537	243,005
Discontinued operations NOI included above	(539)	(1,360)		(1,502)	(7,378)
Depreciation and amortization	(70,222)	(32,766)		(229,866)	(97,183)
Acquisition expense	(13)	0		(971)	(499)
Property management expense	(7,429)	(4,970)		(24,019)	(15,301)
General and administrative expense	(6,511)	(3,976)		(16,065)	(10,604)
Merger related expenses	(331)	(5,561)		(3,202)	(11,298)
Integration costs	(147)	(35)		(7,140)	(35)
Interest and other non-property income	85	16		1,166	86
Interest expense	(28,251)	(14,923)		(89,090)	(45,657)
Loss on debt extinguishment/modification	(2,586)	(218)		(2,586)	(387)
Amortization of deferred financing costs	(1,000)	(820)		(3,485)	(2,427)
Gain on sale of depreciable real estate assets excluded from discontinued operations	36,032	0	6,200	42,254	0
Net casualty (loss) gain after insurance and other settlement proceeds	(126)	0		(431)	455
Income tax expense	(442)	(223)		(1,235)	(669)
Gain on sale of non-depreciable real estate assets	0	0	500	535	0
Gain from real estate joint ventures	3,124	60		6,019	161
Discontinued operations	388	29,759		6,731	76,355
Net income attributable to noncontrolling interests	(3,743)	(1,772)		(6,364)	(4,536)
Net income attributable to MAA	66,976	44,284		113,455	124,553
Large Market Same Store
Revenues
Total property revenues	64,017	61,135		187,712	180,012
Net Operating Income	38,556	35,651		111,909	106,279
Secondary Market Same Store
Revenues
Total property revenues	62,758	61,753		186,260	183,450
Net Operating Income	37,425	36,375		111,468	110,455
Non-Same Store and Other
Revenues
Total property revenues	121,995	12,372		362,681	31,200
Net Operating Income	$ 72,695	$ 8,901		$ 219,160	$ 26,271

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Derivatives and Hedging Activities (Tables)

9 Months Ended

Sep. 30, 2014

Notes To Financial Statements [Abstract]

Outstanding Interest Rate Derivatives Designated as Cash Flow Hedges of Interest Rate Risk

As of September 30, 2014, we had the following outstanding interest rate derivatives that were designated as cash flow hedges of interest rate risk:

Interest Rate Derivative	Number of Instruments	Notional
Interest Rate Caps	6	$	165,000,000
Interest Rate Swaps	9	$	625,000,000

Schedule of Other Derivatives Not Designated as Hedging Instruments, Statements of Financial Performance and Financial Position, Location [Table Text Block]

As of September 30, 2014, we had the following outstanding interest rate derivatives that were not designated as hedges:

Interest Rate Derivative	Number of Instruments	Notional
Interest rate caps	14	$	90,326,031

Fair Values of Derivative Instruments on Condensed Consolidated Balance Sheet

The table below presents the fair value of our derivative financial instruments as well as their classification on the Consolidated Balance Sheet as of September 30, 2014 and December 31, 2013, respectively.

Fair Values of Derivative Instruments on the Consolidated Balance Sheet as of September 30, 2014 and

December 31, 2013 (dollars in thousands)

	Asset Derivatives					Liability Derivatives
		September 30, 2014		December 31, 2013			September 30, 2014		December 31, 2013
Derivatives designated as hedging instruments	Balance Sheet Location	Fair Value		Fair Value		Balance Sheet Location	Fair Value		Fair Value
Interest rate contracts	Other assets	$	117	$	396	Fair market value of interest rate swaps	$	13,132	$	20,015
Total derivatives designated as hedging instruments		$	117	$	396		$	13,132	$	20,015
Derivatives not designated as hedging instruments
Interest rate contracts	Other assets	$	14	$	49		$	—	$	—
Total derivatives not designated as hedging instruments		$	14	$	49		$	—	$	—

Effect of Derivative Instruments on Consolidated Statement of Operations

The table below presents the effect of our derivative financial instruments on the Consolidated Statements of Operations for the three and nine months ended September 30, 2014 and 2013, respectively.

Effect of Derivative Instruments on the Consolidated Statements of Operations for the

Three and nine months ended September 30, 2014 and 2013 (dollars in thousands)

Derivatives in Cash Flow Hedging Relationships	Amount of  Gain or (Loss) Recognized in  OCI on Derivative  (Effective Portion)						Location of Gain or (Loss) Reclassified  from Accumulated OCI into Income (Effective Portion)	Amount of   Gain or (Loss) Reclassified from Accumulated  OCI into Income  (Effective Portion)						Location of Gain or (Loss) Recognized in Income on Derivative (Ineffective Portion and Amount Excluded from Effectiveness Testing)	Amount of Gain or (Loss) Recognized in Income on Derivative (Ineffective Portion and Amount Excluded from Effectiveness Testing)
Three months ended September 30,	2014			2013				2014			2013				2014			2013
Interest rate contracts	$	(696	)	$	(1,826	)	Interest expense	$	(2,589	)	$	(3,621	)	Interest expense	$	(25	)	$	(1	)
Total derivatives in cash flow hedging relationships	$	(696	)	$	(1,826	)		$	(2,589	)	$	(3,621	)		$	(25	)	$	(1	)
Nine months ended September 30,
Interest rate contracts	$	(9,096	)	$	10,096		Interest expense	$	(9,399	)	$	(12,098	)	Interest expense	$	(88	)	$	26
Total derivatives in cash flow hedging relationships	$	(9,096	)	$	10,096			$	(9,399	)	$	(12,098	)		$	(88	)	$	26
Derivatives Not Designated as Hedging Instruments
Three months ended September 30,														Location of Gain or (Loss) Recognized in Income	2014			2013
Interest rate contracts														Interest expense	$	(10	)	$	(5	)
Total															$	(10	)	$	(5	)
Nine months ended September 30,
Interest rate contracts														Interest expense	$	(138	)	$	(8	)
Total															$	(138	)	$	(8	)

Offsetting Assets and Liabilities [Table Text Block]

The table below presents a gross presentation, the effects of offsetting, and a net presentation of our derivatives as of September 30, 2014 and December 31, 2013. The net amounts of derivative assets or liabilities can be reconciled to the Tabular Disclosure of Fair Values of Derivative Instruments above, which also provides the location that derivative assets and liabilities are presented on the Consolidated Balance Sheet (dollars in thousands):

Offsetting of Derivative Assets
As of September 30, 2014
							Gross Amounts Not Offset in the Statement of Financial Position
	Gross Amounts of Recognized Assets		Gross Amounts Offset in the Statement of Financial Position		Net Amounts of Assets presented in the Statement of Financial Position		Financial Instruments		Cash Collateral Received		Net Amount
Derivatives	$	131	$	—	$	131	$	—	$	—	$	131
Offsetting of Derivative Liabilities
As of September 30, 2014
							Gross Amounts Not Offset in the Statement of Financial Position
	Gross Amounts of Recognized Liabilities		Gross Amounts Offset in the Statement of Financial Position		Net Amounts of Liabilities presented in the Statement of Financial Position		Financial Instruments		Cash Collateral Posted		Net Amount
Derivatives	$	13,132	$	—	$	13,132	$	—	$	—	$	13,132
Offsetting of Derivative Assets
As of December 31, 2013
							Gross Amounts Not Offset in the Statement of Financial Position
	Gross Amounts of Recognized Assets		Gross Amounts Offset in the Statement of Financial Position		Net Amounts of Assets presented in the Statement of Financial Position		Financial Instruments		Cash Collateral Received		Net Amount
Derivatives	$	444	$	—	$	444	$	—	$	—	$	444
Offsetting of Derivative Liabilities
As of December 31, 2013
							Gross Amounts Not Offset in the Statement of Financial Position
	Gross Amounts of Recognized Liabilities		Gross Amounts Offset in the Statement of Financial Position		Net Amounts of Liabilities presented in the Statement of Financial Position		Financial Instruments		Cash Collateral Posted		Net Amount
Derivatives	$	20,015	$	—	$	20,015	$	—	$	—	$	20,015

Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]

The chart below shows the change in the balance for the nine months ended September 30, 2014 and 2013:

Changes in Accumulated Other Comprehensive Income by Component
	Affected Line Item in the Consolidated Statements Of Operations	Gains and Losses on Cash Flow Hedges
		for the nine months ended September 30,
		2014			2013
Beginning balance		$	108		$	(26,054	)
Other comprehensive (loss) income before reclassifications		(9,096		)	10,096
Amounts reclassified from accumulated other comprehensive income (interest rate contracts)	Interest expense	9,399			12,098
Net current-period other comprehensive loss attributable to noncontrolling interest		(15		)	(739		)
Net current-period other comprehensive income attributable to MAA		288			21,455
Ending balance		$	396		$	(4,599	)

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Effect of Derivative Instruments on Consolidated Statement of Operations (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Designated as Hedging Instrument [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of (Loss) or Gain Recognized in OCI on Derivative (Effective Portion)	$ (696)	$ (1,826)	$ (9,096)	$ 10,096
Amount of Loss Reclassified from Accumulated OCI into Income (Effective Portion)	(2,589)	(3,621)	(9,399)	(12,098)
(Loss) Gain on Cash Flow Hedge Ineffectiveness, Net	(25)	(1)	(88)	26
Designated as Hedging Instrument [Member] | Interest Expense
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Loss Reclassified from Accumulated OCI into Income (Effective Portion)	(2,589)	(3,621)	(9,399)	(12,098)
(Loss) Gain on Cash Flow Hedge Ineffectiveness, Net	(25)	(1)	(88)	26
Designated as Hedging Instrument [Member] | Interest rate contracts
Derivative Instruments, Gain (Loss) [Line Items]
Amount of (Loss) or Gain Recognized in OCI on Derivative (Effective Portion)	(696)	(1,826)	(9,096)	10,096
Not Designated as Hedging Instrument [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, (Loss) Gain Recognized in Income, Net	(10)	(5)	(138)	(8)
Not Designated as Hedging Instrument [Member] | Interest Expense
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, (Loss) Gain Recognized in Income, Net	$ (10)	$ (5)	$ (138)	$ (8)

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Segment Information

9 Months Ended

Sep. 30, 2014

Notes To Financial Statements [Abstract]

Segment Information

Segment Information

As of September 30, 2014, we owned or had an ownership interest in 265 multifamily apartment communities in 14 different states from which we derived all significant sources of earnings and operating cash flows. Senior management evaluates performance and determines resource allocations by reviewing apartment communities individually and in the following reportable operating segments:

• Large market same store communities are generally communities:

◦ in markets with a population of at least 1 million and at least 1% of the total public multifamily REIT units; and

◦ that we have owned and have been stabilized for at least a full 12 months and have not been classified as held for sale.

• Secondary market same store communities are generally communities:

◦ in markets with populations of more than 1 million but less than 1% of the total public multifamily REIT units or in markets with a population of less than 1 million; and

◦ that we have owned and have been stabilized for at least a full 12 months and have not been classified as held for sale.

• Non same store communities and other includes recent acquisitions, communities in development or lease-up, communities that have been identified for disposition, and communities that have undergone a significant casualty loss. Also included in non same store communities are non multifamily activities, which represent less than 1% of our portfolio.

On the first day of each calendar year, we determine the composition of our same store operating segments for that year as well as adjusting the previous year, which allows us to evaluate full period-over-period operating comparisons. Properties in development or lease-up will be added to the same store portfolio on the first day of the calendar year after they have been owned and stabilized for at least a full 12 months. Communities are considered stabilized after achieving 90% occupancy for 90 days. Communities that have been identified for disposition are excluded from our same store portfolio. We utilize net operating income, or NOI, a non-GAAP financial measure, in evaluating the performance of the segments.  Total NOI represents total property revenues less total property operating expenses, excluding depreciation and amortization, for all properties held during the period regardless of their status as held for sale. We believe NOI is a helpful tool in evaluating the operating performance of our segments because it measures the core operations of property performance by excluding corporate level expenses and other items not related to property operating performance.

A redevelopment community is a community with a specific plan in place to either upgrade at least half of the community's units over a period of time with new finishes, fixtures, and appliances, among other upgrades.  These plans include spending a pre-defined amount of capital per unit to achieve a rent increase as a result of the upgrades.  We separately identify redevelopment communities that would cause a material distortion of normal same store operating results. Routine renovations occur at a property as items need to be replaced as a normal part of operations and which are done with an expectation to maintain the current level of quality at the property. There is no specified plan in place for routine renovations.

Revenues and NOI for each reportable segment for the three- and nine-month periods ended September 30, 2014 and 2013 were as follows (dollars in thousands):

	Three months ended September 30,						Nine months ended September 30,
	2014			2013			2014			2013
Revenues
Large Market Same Store	$	64,017		$	61,135		$	187,712		$	180,012
Secondary Market Same Store	62,758			61,753			186,260			183,450
Non-Same Store and Other	121,995			12,372			362,681			31,200
Total property revenues	248,770			135,260			736,653			394,662
Management fee income	11			146			169			465
Total operating revenues	$	248,781		$	135,406		$	736,822		$	395,127
NOI
Large Market Same Store	$	38,556		$	35,651		$	111,909		$	106,279
Secondary Market Same Store	37,425			36,375			111,468			110,455
Non-Same Store and Other	72,695			8,901			219,160			26,271
Total NOI	148,676			80,927			442,537			243,005
Discontinued operations NOI included above	(539		)	(1,360		)	(1,502		)	(7,378		)
Management fee income	11			146			169			465
Depreciation and amortization	(70,222		)	(32,766		)	(229,866		)	(97,183		)
Acquisition expense	(13		)	—			(971		)	(499		)
Property management expense	(7,429		)	(4,970		)	(24,019		)	(15,301		)
General and administrative expense	(6,511		)	(3,976		)	(16,065		)	(10,604		)
Merger related expenses	(331		)	(5,561		)	(3,202		)	(11,298		)
Integration costs	(147		)	(35		)	(7,140		)	(35		)
Interest and other non-property income	85			16			1,166			86
Interest expense	(28,251		)	(14,923		)	(89,090		)	(45,657		)
Loss on debt extinguishment/modification	(2,586		)	(218		)	(2,586		)	(387		)
Amortization of deferred financing costs	(1,000		)	(820		)	(3,485		)	(2,427		)
Gain on sale of depreciable real estate assets excluded from discontinued operations	36,032			—			42,254			—
Net casualty (loss) gain after insurance and other settlement proceeds	(126		)	—			(431		)	455
Income tax expense	(442		)	(223		)	(1,235		)	(669		)
Gain on sale of non-depreciable real estate assets	—			—			535			—
Gain from real estate joint ventures	3,124			60			6,019			161
Discontinued operations	388			29,759			6,731			76,355
Net income attributable to noncontrolling interests	(3,743		)	(1,772		)	(6,364		)	(4,536		)
Net income attributable to MAA	$	66,976		$	44,284		$	113,455		$	124,553

Assets for each reportable segment as of September 30, 2014 and December 31, 2013, were as follows (dollars in thousands):

	September 30, 2014		December 31, 2013
Assets
Large Market Same Store	$	1,227,413	$	1,252,575
Secondary Market Same Store	764,383		796,697
Non-Same Store and Other	4,637,072		4,638,892
Corporate assets	154,146		153,761
Total assets	$	6,783,014	$	6,841,925

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Derivatives and Hedging Activities (Policies)

9 Months Ended

Sep. 30, 2014

Derivatives and Hedging Activities [Abstract]

Derivatives, Methods of Accounting, Derivatives Not Designated or Qualifying as Hedges [Policy Text Block]

Non-Designated Hedges

Derivatives not designated as hedges are not speculative and are used to manage the Company's exposure to interest rate movements and other identified risks but do not meet the strict hedge accounting requirements of FASB ASC 815, Derivatives and Hedging. Changes in the fair value of derivatives not designated in hedging relationships are recorded directly in earnings and resulted in a loss of $10,000 for the three months ended September 30, 2014 and a loss of $138,000 for the nine months ended September 30, 2014. We recorded a loss of $5,000 for the three months ended September 30, 2013 and a loss of $8,000 for the nine months ended September 30, 2013.

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Derivatives and Hedging Activities - Additional Information (Detail) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Derivative [Line Items]
Credit Risk Related Contingent Features Termination Value	$ 1,700,000		$ 1,700,000
Derivative Collateral	100.00%		100.00%
Derivative Collateral Posted	0		0
Other Credit Enhancements
Derivative [Line Items]
Credit Risk Related Contingent Features Termination Value	1,000,000		1,000,000
Credit Default Option [Member]
Derivative [Line Items]
Credit Risk Related Contingent Features Termination Value	12,500,000		12,500,000
Termination
Derivative [Line Items]
Fair Value of Credit Risk Derivatives	13,100,000		13,100,000
Net Liability Position [Member]
Derivative [Line Items]
Credit Risk Related Contingent Features Termination Value	14,300,000		14,300,000
Designated as Hedging Instrument [Member] | Interest Rate Caps
Derivative [Line Items]
Derivative, Number of Instruments Held	6		6
Derivative, Notional Amount	165,000,000		165,000,000
Designated as Hedging Instrument [Member] | Interest Rate Swap [Member]
Derivative [Line Items]
Derivative, Number of Instruments Held	9		9
Derivative, Notional Amount	625,000,000		625,000,000
Designated as Hedging Instrument [Member] | Interest Expense
Derivative [Line Items]
Loss on Cash Flow Hedge Ineffectiveness	(25,000)	1,000	(88,000)
Gain on Cash Flow Hedge Ineffectiveness				26,000
Change in fair value of interest rate derivatives included in AOCI and expected to be reclassified in the next 12 months			7,500,000
Not Designated as Hedging Instrument [Member] | Interest Rate Caps
Derivative [Line Items]
Derivative, Number of Instruments Held	14		14
Derivative, Notional Amount	90,326,031		90,326,031
Not Designated as Hedging Instrument [Member] | Interest Expense
Derivative [Line Items]
Derivative, Loss on Derivative	$ (10,000)	$ 5,000	$ (138,000)	$ (8,000)

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Earnings Per Common Share of MAA (Details) (Parent Company [Member], USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended				9 Months Ended
	Sep. 30, 2014		Sep. 30, 2013		Sep. 30, 2014		Sep. 30, 2013
Earnings Per Share Disclosure [Line Items]
Weighted average common shares - basic	75,058		42,702		74,937		42,583
Weighted average partnership units outstanding	0	[1]	0	[1]	0	[1]	1,709
Effect of dilutive securities	0	[1]	0	[1]	0	[1]	53
Weighted average common shares - diluted	75,058		42,702		74,937		44,345
Calculation of Basic Earnings per Share [Member]
Earnings Per Share Disclosure [Line Items]
Income from continuing operations	$ 70,331		$ 16,297		$ 113,088		$ 52,734
Income from continuing operations attributable to noncontrolling interests	(3,722)		(632)		(6,005)		(1,973)
Income from continuing operations allocated to unvested restricted shares	(130)		(14)		(209)		(46)
Income from continuing operations available for common shareholders, adjusted	66,479		15,651		106,874		50,715
Income from discontinued operations	388		29,759		6,731		76,355
Income from discontinued operations attributable to noncontrolling interest	(21)		(1,140)		(359)		(2,563)
Income from discontinued operations allocated to unvested restricted shares	(1)		(25)		(12)		(67)
Income from discontinued operations available for common shareholders, adjusted	366		28,594		6,360		73,725
Earnings per share - basic	$ 0.89		$ 1.04		$ 1.51		$ 2.92
Calculation of Diluted Earnings per Share [Member]
Earnings Per Share Disclosure [Line Items]
Income from continuing operations	70,331		16,297		113,088		52,734
Income from continuing operations attributable to noncontrolling interests	(3,725)	[1]	(632)	[1]	(6,005)	[1]	0
Income from continuing operations allocated to unvested restricted shares	(130)	[1]	(14)	[1]	(209)	[1]	0
Income from continuing operations available for common shareholders, adjusted	66,476		15,651		106,874		52,734
Income from discontinued operations	388		29,759		6,731		76,355
Income from discontinued operations attributable to noncontrolling interest	(21)	[1]	(1,140)	[1]	(357)	[1]	0
Income from discontinued operations allocated to unvested restricted shares	(1)	[1]	(25)	[1]	(12)	[1]	0
Income from discontinued operations available for common shareholders, adjusted	$ 366		$ 28,594		$ 6,362		$ 76,355
Earnings per share - diluted	$ 0.89		$ 1.04		$ 1.51		$ 2.91

[1] (1) Operating partnership units, other dilutive securities, and the related income with each are not included in the diluted earnings per share calculations as they were not dilutive.

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Condensed Consolidated Statements of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Parent Company [Member]
Operating revenues:
Rental revenues	$ 225,789	$ 124,612	$ 669,387	$ 363,445
Other property revenues	22,981	10,648	67,266	31,217
Total property revenues	248,770	135,260	736,653	394,662
Management fee income	11	146	169	465
Total operating revenues	248,781	135,406	736,822	395,127
Property operating expenses:
Personnel	26,355	14,930	76,447	43,332
Building repairs and maintenance	8,703	4,554	22,286	11,557
Real estate taxes and insurance	30,918	16,741	92,735	48,187
Utilities	14,874	7,506	41,534	20,900
Landscaping	4,002	2,894	15,391	8,595
Other operating	15,781	9,068	47,225	26,464
Depreciation and amortization	70,222	32,766	229,866	97,183
Total property operating expenses	170,855	88,459	525,484	256,218
Acquisition expense	13	0	971	499
Property management expenses	7,429	4,970	24,019	15,301
General and administrative expenses	6,511	3,976	16,065	10,604
Merger related expenses	331	5,561	3,202	11,298
Integration related expenses	147	35	7,140	35
Income from continuing operations before non-operating items	63,495	32,405	159,941	101,172
Interest and other non-property income	85	16	1,166	86
Interest expense	(28,251)	(14,923)	(89,090)	(45,657)
Loss on debt extinguishment/modification	(2,586)	(218)	(2,586)	(387)
Amortization of deferred financing costs	(1,000)	(820)	(3,485)	(2,427)
Net casualty (loss) gain after insurance and other settlement proceeds	(126)	0	(431)	455
Gain on sale of depreciable real estate assets excluded from discontinued operations	36,032	0	42,254	0
Gain on sale of non-depreciable real estate assets	0	0	535	0
Income before income tax expense	67,649	16,460	108,304	53,242
Income tax expense	(442)	(223)	(1,235)	(669)
Income from continuing operations before joint venture activity	67,207	16,237	107,069	52,573
Gain from real estate joint ventures	3,124	60	6,019	161
Income from continuing operations	70,331	16,297	113,088	52,734
Discontinued operations:
Income from discontinued operations before (loss) gain on sale	488	972	1,353	4,451
Net casualty gain (loss) after insurance and other settlement proceeds on discontinued operations	3	(1)	0	(5)
(Loss) gain on sale of discontinued operations	(103)	28,788	5,378	71,909
Consolidated net income	70,719	46,056	119,819	129,089
Net income attributable to noncontrolling interests	3,743	1,772	6,364	4,536
Net income available for MAA common shareholders	66,976	44,284	113,455	124,553
Earnings per common share - basic:
Income from continuing operations available for common shareholders	$ 0.89	$ 0.37	$ 1.43	$ 1.19
Discontinued property operations	$ 0.00	$ 0.67	$ 0.08	$ 1.73
Net income available for common shareholders	$ 0.89	$ 1.04	$ 1.51	$ 2.92
Earnings per common share - diluted:
Income from continuing operations available for common shareholders	$ 0.89	$ 0.37	$ 1.43	$ 1.19
Discontinued property operations	$ 0.00	$ 0.67	$ 0.08	$ 1.72
Net income available for common shareholders	$ 0.89	$ 1.04	$ 1.51	$ 2.91
Dividends declared per common share	$ 0.7300	$ 0.6950	$ 2.1900	$ 2.0850
Distribution Made to Limited Partner, Distributions Declared, Per Unit			$ 2.1900	$ 2.0850
Limited Partner [Member]
Operating revenues:
Rental revenues	225,789	124,612	669,387	363,445
Other property revenues	22,981	10,648	67,266	31,217
Total property revenues	248,770	135,260	736,653	394,662
Management fee income	11	146	169	465
Total operating revenues	248,781	135,406	736,822	395,127
Property operating expenses:
Personnel	26,355	14,930	76,447	43,332
Building repairs and maintenance	8,703	4,554	22,286	11,557
Real estate taxes and insurance	30,918	16,741	92,735	48,187
Utilities	14,874	7,506	41,534	20,900
Landscaping	4,002	2,894	15,391	8,595
Other operating	15,781	9,068	47,225	26,464
Depreciation and amortization	70,222	32,766	229,866	97,183
Total property operating expenses	170,855	88,459	525,484	256,218
Acquisition expense	13	0	971	499
Property management expenses	7,429	4,970	24,019	15,301
General and administrative expenses	6,511	3,976	16,065	10,604
Merger related expenses	331	5,561	3,202	11,298
Integration related expenses	147	35	7,140	35
Income from continuing operations before non-operating items	63,495	32,405	159,941	101,172
Interest and other non-property income	85	16	1,166	86
Interest expense	(28,251)	(14,923)	(89,090)	(45,657)
Loss on debt extinguishment/modification	(2,586)	(218)	(2,586)	(387)
Amortization of deferred financing costs	(1,000)	(820)	(3,485)	(2,427)
Net casualty (loss) gain after insurance and other settlement proceeds	(126)	0	(431)	455
Gain on sale of depreciable real estate assets excluded from discontinued operations	36,032	0	42,254	0
Gain on sale of non-depreciable real estate assets	0	0	535	0
Income before income tax expense	67,649	16,460	108,304	53,242
Income tax expense	(442)	(223)	(1,235)	(669)
Income from continuing operations before joint venture activity	67,207	16,237	107,069	52,573
Gain from real estate joint ventures	3,124	60	6,019	161
Income from continuing operations	70,331	16,297	113,088	52,734
Discontinued operations:
Income from discontinued operations before (loss) gain on sale	488	973	1,353	4,054
Net casualty gain (loss) after insurance and other settlement proceeds on discontinued operations	3	(1)	0	(5)
(Loss) gain on sale of discontinued operations	(103)	28,806	5,378	60,585
Consolidated net income	70,719	46,075	119,819	117,368
Net income available for Mid-America Apartments, L.P. common unitholders	$ 70,719	$ 46,075	$ 119,819	$ 117,368
Earnings per common share - basic:
Income from continuing operations available for common shareholders	$ 0.89	$ 0.37	$ 1.43	$ 1.19
Discontinued property operations	$ 0.00	$ 0.67	$ 0.08	$ 1.46
Net income available for common shareholders	$ 0.89	$ 1.04	$ 1.51	$ 2.65
Earnings per common share - diluted:
Income from continuing operations available for common shareholders	$ 0.89	$ 0.37	$ 1.43	$ 1.19
Discontinued property operations	$ 0.00	$ 0.67	$ 0.08	$ 1.46
Net income available for common shareholders	$ 0.89	$ 1.04	$ 1.51	$ 2.65
Distribution Made to Limited Partner, Distributions Declared, Per Unit	$ 0.7300	$ 0.6950	$ 2.1900	$ 2.0850

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Earnings Per Common Share of MAA

9 Months Ended

Sep. 30, 2014

Earnings Per Common Share of MAA [Abstract]

Earnings Per Share [Text Block]

Earnings per Common Share of MAA

Basic earnings per share is computed by dividing net income attributable to common shareholders by the weighted average number of shares outstanding during the period.  All outstanding unvested restricted share awards contain rights to non-forfeitable dividends and participate in undistributed earnings with common shareholders and, accordingly, are considered participating securities that are included in the two-class method of computing basic earnings per share. Both the unvested restricted shares and other potentially dilutive common shares, and the related impact to earnings, are considered when calculating earnings per share on a diluted basis with our diluted earnings per share being the more dilutive of the treasury stock or two-class methods.  Operating Partnership units are included in dilutive earnings per share calculations when they are dilutive to earnings per share. For the three and nine months ended September 30, 2014 and 2013, MAA's basic earnings per share is computed using the two-class method, and our diluted earnings per share is computed using the more dilutive of the treasury stock method or two-class method:

(dollars and shares in thousands, except per share amounts)	Three months ended September 30,								Nine months ended September 30,
	2014				2013				2014				2013
Shares Outstanding
Weighted average common shares - basic	75,058				42,702				74,937				42,583
Weighted average partnership units outstanding	—			(1)	—			(1)	—			(1)	1,709
Effect of dilutive securities	—			(1)	—			(1)	—			(1)	53
Weighted average common shares - diluted	75,058				42,702				74,937				44,345
Calculation of Earnings per Share - basic
Income from continuing operations	$	70,331			$	16,297			$	113,088			$	52,734
Income from continuing operations attributable to noncontrolling interests	(3,722		)		(632		)		(6,005		)		(1,973		)
Income from continuing operations allocated to unvested restricted shares	(130		)		(14		)		(209		)		(46		)
Income from continuing operations available for common shareholders, adjusted	$	66,479			$	15,651			$	106,874			$	50,715
Income from discontinued operations	$	388			$	29,759			$	6,731			$	76,355
Income from discontinued operations attributable to noncontrolling interest	(21		)		(1,140		)		(359		)		(2,563		)
Income from discontinued operations allocated to unvested restricted shares	(1		)		(25		)		(12		)		(67		)
Income from discontinued operations available for common shareholders, adjusted	$	366			$	28,594			$	6,360			$	73,725
Weighted average common shares - basic	75,058				42,702				74,937				42,583
Earnings per share - basic	$	0.89			$	1.04			$	1.51			$	2.92
Calculation of Earnings per Share - diluted
Income from continuing operations	$	70,331			$	16,297			$	113,088			$	52,734
Income from continuing operations attributable to noncontrolling interests	(3,725		)	(1)	(632		)	(1)	(6,005		)	(1)	—
Income from continuing operations allocated to unvested restricted shares	(130		)	(1)	(14		)	(1)	(209		)	(1)	—
Income from continuing operations available for common shareholders, adjusted	$	66,476			$	15,651			$	106,874			$	52,734
Income from discontinued operations	$	388			$	29,759			$	6,731			$	76,355
Income from discontinued operations attributable to noncontrolling interest	(21		)	(1)	(1,140		)	(1)	(357		)	(1)	—
Income from discontinued operations allocated to unvested restricted shares	(1		)	(1)	(25		)	(1)	(12		)	(1)	—
Income from discontinued operations available for common shareholders, adjusted	$	366			$	28,594			$	6,362			$	76,355
Weighted average common shares - diluted	75,058				42,702				74,937				44,345
Earnings per share - diluted	$	0.89			$	1.04			$	1.51			$	2.91

⁽¹⁾ Operating partnership units, other dilutive securities, and the related income with each are not included in the diluted earnings per share calculations as they were not dilutive.

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Legal Proceedings (Details) (Regatta at James Island Litigation [Member])	9 Months Ended
	Sep. 30, 2014
Regatta at James Island Litigation [Member]
Loss Contingencies [Line Items]
For-Sale Residential Unit Dispositions	212

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Consolidation and Basis of Presentation and Significant Accounting Policies (Tables)

9 Months Ended

Sep. 30, 2014

Real Estate Properties [Line Items]

Schedule of Real Estate Properties [Table Text Block]

As of September 30, 2014, we owned and operated 265 apartment communities comprising 81,137 apartments located in 14 states principally through the Operating Partnership, and we also owned an interest in the following unconsolidated real estate joint ventures:

	Percent Owned	Number of Units/Square Feet
Multifamily:
McKinney (1)	25.00%	—
Commercial:
Land Title Building	33.30%	29,971

⁽¹⁾ This joint venture consists of undeveloped land.

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Consolidation and Basis of Presentation and Significant Accounting Policies - Additional Information (Detail) (USD $)	3 Months Ended		6 Months Ended	9 Months Ended		12 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Jun. 30, 2014	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Real Estate Properties [Line Items]
General Partners' Capital Account, Units Outstanding	75,242,266	42,744,978		75,242,266	42,744,978
Limited Liability Company (LLC) or Limited Partnership (LP), Managing Member or General Partner, Ownership Interest				94.70%	96.20%
Conversion of Stock, Shares Converted				0.36
Number of Wholly Owned Real Estate Properties	265			265
Number of apartments included in a community	81,137			81,137
Number of states in which apartment units are located	14			14
Number of owned or owned interests of apartment communities	265			265
Prior period error adjustment	$ 2,300,000
Quantifying Misstatement in Prior Period Financial Statements, Net Income Available for Common Shareholders						800,000
Quantifying Misstatement in Current Year Financial Statements, Amount						$ 0.01
Percentage Of Ownership Interests	100.00%			100.00%
Minimum [Member]
Real Estate Properties [Line Items]
Percentage Of Ownership Interests	95.00%			95.00%
Maximum [Member]
Real Estate Properties [Line Items]
Percentage Of Ownership Interests	100.00%			100.00%
Parent Company [Member]
Real Estate Properties [Line Items]
Development and capital improvements in progress	59,161,000			59,161,000		166,048,000
Exercise of stock options	2,400,000			11,916,000	0	9,500,000
Gain on sale of depreciable real estate assets excluded from discontinued operations	36,032,000	0	6,200,000	42,254,000	0
Gain on sale of non-depreciable real estate assets	0	0	500,000	535,000	0
Development Properties [Member]
Real Estate Properties [Line Items]
Number of apartments included in a community	0			0
Number of owned or owned interests of apartment communities	2			2
Number of units under development community	514			514
Development Properties [Member] | Expected Costs [Member]
Real Estate Properties [Line Items]
Development and capital improvements in progress	72,900,000			72,900,000
Development Properties [Member] | Costs Incurred to Date [Member]
Real Estate Properties [Line Items]
Development and capital improvements in progress	$ 49,200,000			$ 49,200,000
Retail
Real Estate Properties [Line Items]
Square Footage of Real Estate Property	100,000			100,000
Number of owned or owned interests of apartment communities	4			4
Commercial Real Estate [Member]
Real Estate Properties [Line Items]
Square Footage of Real Estate Property	287,000			287,000
Number of owned or owned interests of apartment communities	3			3
Partially Owned Properties [Member]
Real Estate Properties [Line Items]
Square Footage of Real Estate Property	30,000			30,000
Number of owned or owned interests of apartment communities	1			1
McKinney
Real Estate Properties [Line Items]
Equity Method Investment, Ownership Percentage	25.00%			25.00%
Real Estate Acquired, Number of Units				0
Land Title Building
Real Estate Properties [Line Items]
Equity Method Investment, Ownership Percentage	33.30%			33.30%
Square Footage of Real Estate Property	29,971			29,971

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Discontinued Operations

9 Months Ended

Sep. 30, 2014

Notes To Financial Statements [Abstract]

Discontinued Operations

Discontinued Operations

In April 2014, the FASB issued ASU No. 2014-08, Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity. We adopted ASU 2014-08 during the period ending March 31, 2014. Due to the early adoption of ASU 2014-08, we did not classify Brookwood Mall, Ansley Village, Colonial Village at North Arlington, Colonial Village at Vista Ridge, Greenbrook, Colonial Village at Inverness, Colonial Village at Charleston Place, Colonial Village at Huntleigh Woods, or Colonial Village at Ashford Place, which were sold during the nine months ended September 30, 2014, as discontinued operations.

Willow Creek, one of the properties that we sold during the nine months ended September 30, 2014, as well as the nine properties sold by us during 2013, have been classified as discontinued operations in the Consolidated Statements of Operations. One additional property, Colonial Promenade Nord du Lac, was classified as held for sale as of the end of the third quarter of 2014 and therefore was classified as a discontinued operation in the Consolidated Statements of Operations. We expect to complete the sale of Colonial Promenade Nord du Lac during the fourth quarter of 2014. Willow Creek and Colonial Promenade Nord du Lac are included in discontinued operations because they were shown in discontinued operations as of December 31, 2013, our latest fiscal year, and thus are not subject to ASU 2014-08.

The following table lists the communities classified as discontinued operations for the nine months ended September 30, 2014:

Community	Units/Sq. Ft.	Date Sold	Location	Operating Segment
Willow Creek	285	January 15, 2014	Columbus, Georgia	Non-same store and other
Colonial Promenade Nord du Lac	195,536	Held for Sale	New Orleans, Louisiana	Non-same store and other

The following is a summary of income from continuing and discontinued operations attributable to MAA and noncontrolling interest for the three- and nine-month periods ended September 30, 2014 and 2013 (dollars in thousands):

	Three months ended September 30,				Nine months ended September 30,
	2014		2013		2014		2013
Income from continuing operations:
Attributable to MAA	$	66,609	$	15,665	$	107,083	$	50,761
Attributable to noncontrolling interest	3,722		632		6,005		1,973
Income from continuing operations	$	70,331	$	16,297	$	113,088	$	52,734
Income from discontinued operations:
Attributable to MAA	$	367	$	28,619	$	6,372	$	73,792
Attributable to noncontrolling interest	21		1,140		359		2,563
Income from discontinued operations	$	388	$	29,759	$	6,731	$	76,355

The following is a summary of earnings from discontinued operations for MAA for the three- and nine-month periods ended September 30, 2014 and 2013 (dollars in thousands):

	Three months ended September 30,						Nine months ended September 30,
	2014			2013			2014			2013
Revenues
Rental revenues	$	795		$	2,295		$	2,384		$	11,830
Other revenues	(2		)	243			(7		)	1,088
Total revenues	793			2,538			2,377			12,918
Expenses
Property operating expenses	256			1,132			856			5,496
Depreciation and amortization	—			342			42			2,553
Interest expense and other	49			92			126			418
Total expense	305			1,566			1,024			8,467
Income from discontinued operations before (loss) gain on sale	488			972			1,353			4,451
Net gain (loss) on insurance and other settlement proceeds on discontinued operations	3			(1		)	—			(5		)
(Loss) gain on sale of discontinued operations	(103		)	28,788			5,378			71,909
Income from discontinued operations	$	388		$	29,759		$	6,731		$	76,355

The following is a summary of earnings from discontinued operations for MAALP for the three- and nine-month periods ended September 30, 2014 and 2013 (dollars in thousands):

	Three months ended September 30,						Nine months ended September 30,
	2014			2013			2014			2013
Revenues:
Rental revenues	$	795		$	2,287		$	2,384		$	10,782
Other revenues	(2		)	243			(7		)	998
Total revenues	793			2,530			2,377			11,780
Expenses:
Property operating expenses	256			1,123			856			4,991
Depreciation and amortization	—			342			42			2,317
Interest expense and other	49			92			126			418
Total expenses	305			1,557			1,024			7,726
Income from discontinued operations before (loss) gain on sale	488			973			1,353			4,054
Net gain (loss) on insurance and other settlement proceeds on discontinued operations	3			(1		)	—			(5		)
(Loss) gain on sale of discontinued operations	(103		)	28,806			5,378			60,585
Income from discontinued operations	$	388		$	29,778		$	6,731		$	64,634