10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

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

For the quarterly period ended June 30, 2019

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 No.)

6815 Poplar Ave., Suite 500, Germantown, TN  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)

Securities registered pursuant to Section 12(b) of the Act:

Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Common Stock, par value $.01 per share (Mid-America Apartment Communities, Inc.)	MAA	New York Stock Exchange
8.50% Series I Cumulative Redeemable Preferred Stock, $.01 par value per share (Mid-America Apartment Communities, Inc.)	MAA*I	New York Stock Exchange

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 ☒	NO ☐
Mid-America Apartments, L.P.	YES ☒	NO ☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted 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 such files).

Mid-America Apartment Communities, Inc.	YES ☒	NO ☐
Mid-America Apartments, L.P.	YES ☒	NO ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company.  See definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and "emerging growth company" in Rule 12b-2 of the Exchange Act.

Mid-America Apartment Communities, Inc.
Large accelerated filer  ☒	Accelerated filer ☐	Non-accelerated filer ☐	Smaller reporting company ☐	Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Mid-America Apartments, L.P.
Large accelerated filer ☐	Accelerated filer ☐	Non-accelerated filer ☒	Smaller reporting company ☐	Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act   ☐

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 ☐	NO ☒
Mid-America Apartments, L.P.	YES ☐	NO ☒

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

Mid-America Apartment Communities, Inc.	Number of Shares Outstanding at
Class	July 29, 2019
Common Stock, $0.01 par value	114,044,489

MID-AMERICA APARTMENT COMMUNITIES, INC.

MID-AMERICA APARTMENTS, L.P.

TABLE OF CONTENTS

			Page
PART I – FINANCIAL INFORMATION
Item 1.	Financial Statements.		4
	Mid-America Apartment Communities, Inc.
		Condensed Consolidated Balance Sheets as of June 30, 2019 and December 31, 2018.	4
		Condensed Consolidated Statements of Operations for the Three and Six months ended June 30, 2019 and 2018.	5
		Condensed Consolidated Statements of Comprehensive Income for the Three and Six months ended June 30, 2019 and 2018.	6
		Condensed Consolidated Statements of Cash Flows for the Six months ended June 30, 2019 and 2018.	7
	Mid-America Apartments, L.P.
		Condensed Consolidated Balance Sheets as of June 30, 2019 and December 31, 2018.	8
		Condensed Consolidated Statements of Operations for the Three and Six months ended June 30, 2019 and 2018.	9
		Condensed Consolidated Statements of Comprehensive Income for the Three and Six months ended June 30, 2019 and 2018.	10
		Condensed Consolidated Statements of Cash Flows for the Six months ended June 30, 2019 and 2018.	11
		Notes to Condensed Consolidated Financial Statements.	12
Item 2.	Management's Discussion and Analysis of Financial Condition and Results of Operations.		30
Item 3.	Quantitative and Qualitative Disclosures About Market Risk.		40
Item 4.	Controls and Procedures.		40
PART II – OTHER INFORMATION
Item 1.	Legal Proceedings.		41
Item 1A.	Risk Factors.		41
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds.		41
Item 3.	Defaults Upon Senior Securities.		42
Item 4.	Mine Safety Disclosures.		42
Item 5.	Other Information.		42
Item 6.	Exhibits.		43
	Signatures.		44

1

Explanatory Note

This report combines the Quarterly Reports on Form 10-Q for the quarter ended June 30, 2019 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 96.5% owned subsidiary, Mid-America Apartments, L.P., are both required to file quarterly reports under the Securities Exchange Act of 1934, as amended.

Unless the context otherwise requires, all references in this Quarterly Report on Form 10-Q to "MAA" refer only to Mid-America Apartment Communities, Inc., and not 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, all 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, "preferred stock" refers to the preferred stock of MAA and "shareholders" refers to the holders of shares of MAA’s common stock or preferred stock, as applicable. The common units of limited partnership interest in the Operating Partnership are referred to as "OP Units" and the holders of the OP Units are referred to as "common unitholders".

As of June 30, 2019, MAA owned 114,043,089 OP Units (96.5% of the total number of OP Units).  MAA conducts substantially all of its business and holds substantially all of its assets, directly or indirectly, 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 periodic reports of MAA and the Operating Partnership, including the notes to the condensed consolidated financial statements, into this 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.

MAA is a multifamily focused, self-administered and self-managed real estate investment trust, or REIT.  Management operates MAA and the Operating Partnership as one business. 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 partners. MAA's only material asset is its ownership of limited partnership interests in the Operating Partnership (other than cash held by MAA from time to time); therefore, MAA's primary function is 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 the real estate assets. Except for net proceeds from public equity issuances by MAA, which are contributed to the Operating Partnership in exchange for limited partnership 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 OP 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, treasury shares, accumulated other comprehensive income and redeemable common stock.  The Operating Partnership's capital may include common capital and preferred capital of the general partner (MAA), limited partners' common capital and preferred capital, noncontrolling interest, accumulated other comprehensive income and redeemable common units.  Holders of OP Units (other than MAA and its subsidiaries) may require the Operating Partnership to redeem their OP Units from time to time, in which case the Operating Partnership may, at its option, pay the redemption price either in cash (in an amount per OP 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 prior to the redemption date) or by delivering one share of MAA's common stock (subject to adjustment under specified circumstances) for each OP Unit so redeemed.

2

In order to highlight the material differences between MAA and the Operating Partnership, this combined Quarterly Report on Form 10-Q includes sections that separately present and discuss areas that are materially different between MAA and the Operating Partnership, including:

• the condensed consolidated financial statements in Item 1 of this Quarterly Report on Form 10-Q;

• certain accompanying notes to the condensed consolidated financial statements, including Note 2 - Earnings per Common Share of MAA and Note 3 - Earnings per OP Unit of MAALP; Note 4 - MAA Equity and Note 5 - MAALP Capital; and Note 8 - Shareholders' Equity of MAA and Note 9 - Partners' Capital of MAALP;

• the controls and procedures in Item 4 of this Quarterly Report on Form 10-Q; and

• the certifications included as Exhibits 31 and 32 to this Quarterly Report on Form 10-Q.

In the sections that combine disclosures 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 we operate the business through the Operating Partnership.  MAA, the Operating Partnership and its subsidiaries operate as one consolidated business, but MAA, the Operating Partnership and each of its subsidiaries are separate, distinct legal entities.

3

PART I – FINANCIAL INFORMATION

Item 1. Financial Statements.

Mid-America Apartment Communities, Inc.

Condensed Consolidated Balance Sheets

(Unaudited)

(Dollars in thousands, except share and per share data)

	June 30, 2019			December 31, 2018
Assets
Real estate assets:
Land	$	1,883,960		$	1,868,828
Buildings and improvements and other		11,775,716			11,670,216
Development and capital improvements in progress		97,526			59,506
		13,757,202			13,598,550
Less: Accumulated depreciation		(2,791,606	)		(2,549,287	)
		10,965,596			11,049,263
Undeveloped land		58,257			58,257
Investment in real estate joint venture		43,997			44,181
Real estate assets, net		11,067,850			11,151,701
Cash and cash equivalents		40,972			34,259
Restricted cash		16,712			17,414
Other assets		149,296			120,407
Total assets	$	11,274,830		$	11,323,781
Liabilities and equity
Liabilities:
Unsecured notes payable	$	3,879,526		$	4,053,302
Secured notes payable		660,463			475,026
Accrued expenses and other liabilities		450,212			413,850
Total liabilities		4,990,201			4,942,178
Redeemable common stock		12,103			9,414
Shareholders' equity:
Preferred stock, $0.01 par value per share, 20,000,000 shares authorized; 8.50% Series    I Cumulative Redeemable Shares, liquidation preference $50 per share, 867,846    shares issued and outstanding as of June 30, 2019 and December 31, 2018,    respectively.		9			9
Common stock, $0.01 par value per share, 145,000,000 shares authorized;    114,043,089 and 113,844,267 shares issued and outstanding as of June 30,    2019 and December 31, 2018, respectively (1)		1,138			1,136
Additional paid-in capital		7,146,076			7,138,170
Accumulated distributions in excess of net income		(1,086,665	)		(989,263	)
Accumulated other comprehensive loss		(9,092	)		(212	)
Total MAA shareholders' equity		6,051,466			6,149,840
Noncontrolling interests - Operating Partnership units		215,404			220,043
Total Company's shareholders' equity		6,266,870			6,369,883
Noncontrolling interests - consolidated real estate entities		5,656			2,306
Total equity		6,272,526			6,372,189
Total liabilities and equity	$	11,274,830		$	11,323,781

⁽¹⁾ Number of shares issued and outstanding represent total shares of common stock regardless of classification on the Condensed Consolidated Balance Sheets. The number of shares classified as redeemable common stock on the Condensed Consolidated Balance Sheets as of June 30, 2019 and December 31, 2018 are 102,779 and 98,371, respectively.

See accompanying notes to condensed consolidated financial statements.

4

Mid-America Apartment Communities, Inc.

Condensed Consolidated Statements of Operations

(Unaudited)

(Dollars in thousands, except per share data)

	Three months ended June 30,						Six months ended June 30,
	2019			2018			2019			2018
Revenues:
Rental and other property revenues	$	407,390		$	390,073		$	808,568		$	776,090
Expenses:
Operating expense, excluding real estate taxes and insurance		96,172			92,980			185,965			182,128
Real estate taxes and insurance		57,970			55,750			117,554			111,006
Depreciation and amortization		123,944			122,925			246,733			243,669
Total property operating expenses		278,086			271,655			550,252			536,803
Property management expenses		13,454			11,396			27,296			24,276
General and administrative expenses		10,598			9,211			23,751			19,343
Merger and integration related expenses		—			2,826			—			6,625
Interest expense		45,936			43,585			91,636			84,490
(Gain) loss on sale of depreciable real estate assets		—			(2	)		13			(2	)
Gain on sale of non-depreciable real estate assets		(297	)		(2,761	)		(9,260	)		(2,911	)
Other non-operating income		(4,775	)		(8,032	)		(5,710	)		(5,691	)
Income before income tax expense		64,388			62,195			130,590			113,157
Income tax expense		(682	)		(570	)		(1,323	)		(1,210	)
Income from continuing operations before real estate joint venture    activity		63,706			61,625			129,267			111,947
Income from real estate joint venture		435			356			832			854
Net income		64,141			61,981			130,099			112,801
Net income attributable to noncontrolling interests		2,224			2,174			4,522			3,975
Net income available for shareholders		61,917			59,807			125,577			108,826
Dividends to MAA Series I preferred shareholders		922			922			1,844			1,844
Net income available for MAA common shareholders	$	60,995		$	58,885		$	123,733		$	106,982
Earnings per common share - basic:
Net income available for MAA common shareholders	$	0.53		$	0.52		$	1.09		$	0.94
Earnings per common share - diluted:
Net income available for MAA common shareholders	$	0.53		$	0.52		$	1.09		$	0.94

See accompanying notes to condensed consolidated financial statements.

5

Mid-America Apartment Communities, Inc.

Condensed Consolidated Statements of Comprehensive Income

(Unaudited)

(Dollars in thousands)

	Three months ended June 30,						Six months ended June 30,
	2019			2018			2019			2018
Net income	$	64,141		$	61,981		$	130,099		$	112,801
Other comprehensive income:
Unrealized (loss) gain from derivative instruments		(5,426	)		5,720			(7,882	)		6,552
Adjustment for net gains reclassified into net income from    derivative instruments		(578	)		(555	)		(1,323	)		(748	)
Total comprehensive income		58,137			67,146			120,894			118,605
Less: Comprehensive income attributable to noncontrolling    interests		(2,012	)		(2,353	)		(4,197	)		(4,183	)
Comprehensive income attributable to MAA	$	56,125		$	64,793		$	116,697		$	114,422

See accompanying notes to condensed consolidated financial statements.

6

Mid-America Apartment Communities, Inc.

Condensed Consolidated Statements of Cash Flows

(Unaudited)

(Dollars in thousands)

	Six months ended June 30,
	2019			2018
Cash flows from operating activities:
Net income	$	130,099		$	112,801
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization		247,266			244,521
Loss (gain) on sale of depreciable real estate assets		13			(2	)
Gain on sale of non-depreciable real estate assets		(9,260	)		(2,911	)
Stock compensation expense		8,237			6,987
Amortization of debt premium and debt issuance costs		3,468			(2,969	)
Net change in operating accounts and other		(11,356	)		5,578
Net cash provided by operating activities		368,467			364,005
Cash flows from investing activities:
Purchases of real estate and other assets		(19,596	)		(110,430	)
Capital improvements, development and other		(133,354	)		(126,333	)
Distributions from real estate joint ventures		184			—
Contributions to affiliates		(2,700	)		(750	)
Proceeds from disposition of real estate assets		14,640			16,151
Net cash used in investing activities		(140,826	)		(221,362	)
Cash flows from financing activities:
Proceeds from lines of credit		545,000			355,000
Repayments of lines of credit		(1,085,000	)		(655,000	)
Net proceeds from commercial paper		367,000			—
Proceeds from notes payable		490,435			397,612
Principal payments on notes payable		(303,672	)		(43,622	)
Payment of deferred financing costs		(9,048	)		(3,471	)
Distributions to noncontrolling interests		(7,886	)		(7,685	)
Dividends paid on common shares		(218,758	)		(209,843	)
Dividends paid on preferred shares		(1,844	)		(1,844	)
Net change in other financing activities		2,143			(1,854	)
Net cash used in financing activities		(221,630	)		(170,707	)
Net increase (decrease) in cash, cash equivalents and restricted cash		6,011			(28,064	)
Cash, cash equivalents and restricted cash, beginning of period		51,673			88,867
Cash, cash equivalents and restricted cash, end of period	$	57,684		$	60,803

The following table provides a reconciliation of cash, cash equivalents and restricted cash to amounts reported within the Condensed Consolidated Balance Sheets:

Reconciliation of cash, cash equivalents and restricted cash:
Cash and cash equivalents	$	40,972	$	32,610
Restricted cash		16,712		28,193
Total cash, cash equivalents and restricted cash	$	57,684	$	60,803
Supplemental disclosure of cash flow information:
Interest paid	$	84,972	$	87,872
Income taxes paid		2,452		2,670
Supplemental disclosure of noncash investing and financing activities:
Conversion of OP Units to shares of common stock	$	1,157	$	3,118
Accrued construction in progress		21,063		22,109
Interest capitalized		1,093		1,283
Fair value adjustment on derivative instruments		1,963		4,597

See accompanying notes to condensed consolidated financial statements.

7

Mid-America Apartments, L.P.

Condensed Consolidated Balance Sheets

(Unaudited)

(Dollars in thousands, except unit data)

	June 30, 2019			December 31, 2018
Assets
Real estate assets:
Land	$	1,883,960		$	1,868,828
Buildings and improvements and other		11,775,716			11,670,216
Development and capital improvements in progress		97,526			59,506
		13,757,202			13,598,550
Less: Accumulated depreciation		(2,791,606	)		(2,549,287	)
		10,965,596			11,049,263
Undeveloped land		58,257			58,257
Investment in real estate joint venture		43,997			44,181
Real estate assets, net		11,067,850			11,151,701
Cash and cash equivalents		40,972			34,259
Restricted cash		16,712			17,414
Other assets		149,296			120,407
Total assets	$	11,274,830		$	11,323,781
Liabilities and capital
Liabilities:
Unsecured notes payable	$	3,879,526		$	4,053,302
Secured notes payable		660,463			475,026
Accrued expenses and other liabilities		450,212			413,850
Due to general partner		19			19
Total liabilities		4,990,220			4,942,197
Redeemable common units		12,103			9,414
Operating Partnership capital:
Preferred units, 867,846 preferred units outstanding as of June 30, 2019    and December 31, 2018, respectively		66,840			66,840
Common units:
General partner, 114,043,089 and 113,844,267 OP Units outstanding as of    June 30, 2019 and December 31, 2018, respectively (1)		5,993,973			6,083,142
Limited partners, 4,090,083 and 4,111,301 OP Units outstanding as of    June 30, 2019 and December 31, 2018, respectively (1)		215,404			220,043
Accumulated other comprehensive loss		(9,366	)		(161	)
Total operating partners' capital		6,266,851			6,369,864
Noncontrolling interests - consolidated real estate entities		5,656			2,306
Total capital		6,272,507			6,372,170
Total liabilities and capital	$	11,274,830		$	11,323,781

⁽¹⁾ Number of units outstanding represent total OP Units regardless of classification on the Condensed Consolidated Balance Sheets. The number of units classified as redeemable common units on the Condensed Consolidated Balance Sheets as of June 30, 2019 and December 31, 2018 are 102,779 and 98,371, respectively.

See accompanying notes to condensed consolidated financial statements.

8

Mid-America Apartments, L.P.

Condensed Consolidated Statements of Operations

(Unaudited)

(Dollars in thousands, except per unit data)

	Three months ended June 30,						Six months ended June 30,
	2019			2018			2019			2018
Revenues:
Rental and other property revenues	$	407,390		$	390,073		$	808,568		$	776,090
Expenses:
Operating expense, excluding real estate taxes and insurance		96,172			92,980			185,965			182,128
Real estate taxes and insurance		57,970			55,750			117,554			111,006
Depreciation and amortization		123,944			122,925			246,733			243,669
Total property operating expenses		278,086			271,655			550,252			536,803
Property management expenses		13,454			11,396			27,296			24,276
General and administrative expenses		10,598			9,211			23,751			19,343
Merger and integration related expenses		—			2,826			—			6,625
Interest expense		45,936			43,585			91,636			84,490
(Gain) loss on sale of depreciable real estate assets		—			(2	)		13			(2	)
Gain on sale of non-depreciable real estate assets		(297	)		(2,761	)		(9,260	)		(2,911	)
Other non-operating income		(4,775	)		(8,032	)		(5,710	)		(5,691	)
Income before income tax expense		64,388			62,195			130,590			113,157
Income tax expense		(682	)		(570	)		(1,323	)		(1,210	)
Income from continuing operations before real estate joint venture activity		63,706			61,625			129,267			111,947
Income from real estate joint venture		435			356			832			854
Net income		64,141			61,981			130,099			112,801
Dividends to preferred unitholders		922			922			1,844			1,844
Net income available for MAALP common unitholders	$	63,219		$	61,059		$	128,255		$	110,957
Earnings per common unit - basic:
Net income available for MAALP common unitholders	$	0.53		$	0.52		$	1.09		$	0.94
Earnings per common unit - diluted:
Net income available for MAALP common unitholders	$	0.53		$	0.52		$	1.09		$	0.94

See accompanying notes to condensed consolidated financial statements.

9

Mid-America Apartments, L.P.

Condensed Consolidated Statements of Comprehensive Income

(Unaudited)

(Dollars in thousands)

	Three months ended June 30,						Six months ended June 30,
	2019			2018			2019			2018
Net income	$	64,141		$	61,981		$	130,099		$	112,801
Other comprehensive income:
Unrealized (loss) gain from derivative instruments		(5,426	)		5,720			(7,882	)		6,552
Adjustment for net gains reclassified into net income from derivative instruments		(578	)		(555	)		(1,323	)		(748	)
Comprehensive income attributable to MAALP	$	58,137		$	67,146		$	120,894		$	118,605

See accompanying notes to condensed consolidated financial statements.

10

Mid-America Apartments, L.P.

Condensed Consolidated Statements of Cash Flows

(Unaudited)

(Dollars in thousands)

	Six months ended June 30,
	2019			2018
Cash flows from operating activities:
Net income	$	130,099		$	112,801
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization		247,266			244,521
Loss (gain) on sale of depreciable real estate assets		13			(2	)
Gain on sale of non-depreciable real estate assets		(9,260	)		(2,911	)
Stock compensation expense		8,237			6,987
Amortization of debt premium and debt issuance costs		3,468			(2,969	)
Net change in operating accounts and other		(11,356	)		5,578
Net cash provided by operating activities		368,467			364,005
Cash flows from investing activities:
Purchases of real estate and other assets		(19,596	)		(110,430	)
Capital improvements, development and other		(133,354	)		(126,333	)
Distributions from real estate joint ventures		184			—
Contributions to affiliates		(2,700	)		(750	)
Proceeds from disposition of real estate assets		14,640			16,151
Net cash used in investing activities		(140,826	)		(221,362	)
Cash flows from financing activities:
Proceeds from lines of credit		545,000			355,000
Repayments of lines of credit		(1,085,000	)		(655,000	)
Net proceeds from commercial paper		367,000			—
Proceeds from notes payable		490,435			397,612
Principal payments on notes payable		(303,672	)		(43,622	)
Payment of deferred financing costs		(9,048	)		(3,471	)
Distributions paid on common units		(226,644	)		(217,528	)
Distributions paid on preferred units		(1,844	)		(1,844	)
Net change in other financing activities		2,143			(1,854	)
Net cash used in financing activities		(221,630	)		(170,707	)
Net increase (decrease) in cash, cash equivalents and restricted cash		6,011			(28,064	)
Cash, cash equivalents and restricted cash, beginning of period		51,673			88,867
Cash, cash equivalents and restricted cash, end of period	$	57,684		$	60,803

The following table provides a reconciliation of cash, cash equivalents and restricted cash to amounts reported within the Condensed Consolidated Balance Sheets:

Reconciliation of cash, cash equivalents and restricted cash:
Cash and cash equivalents	$	40,972	$	32,610
Restricted cash		16,712		28,193
Total cash, cash equivalents and restricted cash	$	57,684	$	60,803
Supplemental disclosure of cash flow information:
Interest paid	$	84,972	$	87,872
Income taxes paid		2,452		2,670
Supplemental disclosure of noncash investing and financing activities:
Accrued construction in progress	$	21,063	$	22,109
Interest capitalized		1,093		1,283
Fair value adjustment on derivative instruments		1,963		4,597

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

(Unaudited)

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

Unless the context otherwise requires, all references to 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" refer 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, unless the context otherwise requires, "shareholders" refers to the holders of shares of MAA’s common stock.  The common units of limited partnership interests in the Operating Partnership are referred to as "OP Units," and the holders of the OP Units are referred to as "common unitholders".

As of June 30, 2019, MAA owned 114,043,089 OP Units (or 96.5% of the total number of OP Units).  MAA conducts substantially all of its business and holds substantially all of its assets, directly or indirectly, 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.

Management believes combining the notes to the condensed consolidated financial statements of MAA and the Operating Partnership results in the following benefits:

• enhances 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; and

• creates time and cost efficiencies through the preparation of one combined set of notes instead of two separate sets.

MAA is a multifamily focused, self-administered and self-managed real estate investment trust, or REIT.  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.  Management believes 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 partners.  MAA's only material asset is its ownership of limited partnership interests in the Operating Partnership (other than cash held by MAA from time to time); therefore, MAA's primary function is 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 the Company's real estate assets.  Except for net proceeds from public equity issuances by MAA, which are contributed to the Operating Partnership in exchange for limited partnership interests, the Operating Partnership generates the capital required by the business through the Operating Partnership's operations, direct or indirect incurrence of indebtedness and issuance of OP Units.

The presentations of MAA's shareholders' equity and the Operating Partnership's capital are the principal areas of difference between the condensed 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, treasury shares, accumulated other comprehensive income and redeemable common stock.  The Operating Partnership's capital may include common capital and preferred capital of the general partner (MAA), limited partners' common capital and preferred capital, noncontrolling interest, accumulated other comprehensive income and redeemable common units.  Holders of OP Units (other than MAA and its subsidiaries) may require the Operating Partnership to redeem their OP Units from time to time, in which case the Operating Partnership may, at its option, pay the redemption price either in cash (in an amount per OP 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 prior to the redemption date) or by delivering one share of MAA's common stock (subject to adjustment under specified circumstances) for each OP Unit so redeemed.

Organization of Mid-America Apartment Communities, Inc.

The Company owns, operates, acquires and selectively develops apartment communities primarily located in the Southeast, Southwest and Mid-Atlantic regions of the United States.  As of June 30, 2019, the Company owned and operated 303 apartment communities through the Operating Partnership and its subsidiaries and had an ownership interest in one apartment community through an unconsolidated real estate joint venture.  As of June 30, 2019, the Company had five development communities under construction totaling 1,090 apartment units.  Total expected costs for these five development projects are $230.5 million, of which $82.5 million

12

had been incurred through June 30, 2019.  The Company expects to complete two developments in the second half of 2019, one development in the first half of 2020, one development in the second half of 2020 and one development in the first half of 2021.  Thirty of the Company's apartment communities include retail components with approximately 615,000 square feet of gross leasable space.  The Company also has four commercial properties with approximately 260,000 square feet of combined gross leasable area.  The Company’s apartment communities and commercial properties are located across 17 states and the District of Columbia.

Basis of Presentation and Principles of Consolidation

The accompanying condensed consolidated financial statements have been prepared by the Company's 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 condensed 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, directly or indirectly, approximately 80% to 100% of all consolidated subsidiaries, including the Operating Partnership.  The condensed 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, 80% to 100% of all consolidated subsidiaries.  In management's 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.

The Company invests in entities which may qualify as variable interest entities, or VIEs, and MAALP is considered a 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.  MAALP is classified as a VIE, since the limited partners lack substantive kick-out rights and substantive participating rights.  The Company consolidates all VIEs for which it is the primary beneficiary and uses the equity method to account for investments that qualify as VIEs but for which it is not the primary beneficiary.  In determining whether the Company is the primary beneficiary of a VIE, management considers both 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.  The Company uses the equity method of accounting for its investments in entities for which the Company exercises significant influence, but does not have the ability to exercise control.  The factors considered in determining whether the Company has the ability to exercise control include ownership of voting interests and participatory rights of investors (see "Investments in Unconsolidated Affiliates" below).

Changes in Presentation

In an effort to simplify the Company's presentation of cash flows from financing activities within the condensed consolidated statements of cash flows, the Company combined "Repurchase of common stock"; "Debt prepayment and extinguishment costs"; "Proceeds from issuances of common shares"; and "Exercise of stock options" into one line, "Net change in other financing activities" within the cash flows from financing activities section.  No presentation changes were made to the cash flows from operating or investing activities sections of the condensed consolidated statements of cash flows. Prior year amounts have been changed to conform to the Company's current year presentation.  These changes in presentation had no effect on the Company's ending cash, cash equivalents and restricted cash balances and did not impact the classification of cash flows between operating, investing and financing activities.

Noncontrolling Interests

As of June 30, 2019, the Company had two types of noncontrolling interests with respect to its consolidated subsidiaries, (1) noncontrolling interests related to the common unitholders of its Operating Partnership (see below) and (2) noncontrolling interest related to its consolidated real estate entities (see "Investment in Consolidated Real Estate Entities" below).  The noncontrolling interests in the accompanying condensed consolidated financial statements relating to the limited partnership interests in the Operating Partnership are owned by the holders of the Class A OP Units. MAA is the sole general partner of the Operating Partnership and holds all of the outstanding Class B OP Units. Net income (after allocations to preferred ownership interests) is allocated to MAA and the noncontrolling interests based on their respective ownership percentages of the Operating Partnership. Issuance of additional Class A OP Units or Class B OP Units changes the ownership percentage of both the noncontrolling interests and MAA. The issuance of Class B OP Units generally occurs when MAA issues common stock and the issuance proceeds are contributed to the Operating Partnership in exchange for Class B OP Units equal to the number of shares of MAA's common stock issued. At each reporting period, the allocation between total MAA shareholders’ equity and noncontrolling interests is adjusted to account for the change in the respective percentage ownership of the underlying equity of the Operating Partnership. MAA’s Board of Directors established economic rights in respect to each Class A OP Unit that were equivalent to the economic rights in respect to each share of MAA common stock. See Note 9 for additional details.

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Investments in Unconsolidated Affiliates

Through its investment in a limited liability company, or the Apartment LLC, the Company together with an institutional investor indirectly owns one apartment community, Post Massachusetts Avenue, located in Washington, D.C.  The Company owned a 35.0% equity interest in the unconsolidated real estate joint venture as of June 30, 2019 and provides property and asset management services to the Apartment LLC for which it earns fees. The joint venture was determined to be a VIE, but the Company is not designated as the primary beneficiary.  As a result, the Company accounts for its investment in the Apartment LLC using the equity method of accounting as the Company is able to exert significant influence over the joint venture but does not have a controlling interest.  As of June 30, 2019, the Company's investment in the Apartment LLC totaled $44.0 million.

In September 2017, a subsidiary of the Operating Partnership invested in a limited partnership, Real Estate Technology Ventures, L.P. As of June 30, 2019, the Operating Partnership indirectly owned 20.7% of the limited partnership. The limited partnership was determined to be a VIE, but the Company is not designated as the primary beneficiary. As a result, the Company accounts for its investment in the limited partnership using the equity method of accounting as the investment is considered more than minor. As of June 30, 2019, the Company's investment in the limited partnership totaled $6.2 million and is included in "Other assets" in the accompanying Condensed Consolidated Balance Sheet. As of June 30, 2019, the Company was committed until September 2022 to make additional capital contributions totaling $10.9 million if and when called by the general partner of the limited partnership.

Investments in Consolidated Real Estate Entities

The Company owns a 92.5% equity interest in a consolidated real estate entity that developed, constructed and operates a 359-unit apartment community in Denver, Colorado. The owner of the remaining 7.5% equity interest, a private real estate company, was generally responsible for the development and construction of the community, which was completed during the year ended December 31, 2018.  The Company will continue to operate and manage the community.  The entity was determined to be a VIE with the Company designated as the primary beneficiary.  As a result, the accounts of the entity are consolidated by the Company.  As of June 30, 2019, the consolidated assets and liabilities included buildings and improvements and other, net of accumulated depreciation of $69.1 million; land of $14.9 million; and accrued expenses and other liabilities of $0.8 million.

During the first quarter of 2019, the Company acquired an 80.0% equity interest in a consolidated real estate entity that will develop, construct and operate an apartment community in Phoenix, Arizona.  The entity acquired the land site and initiated development of the apartment community in the first quarter of 2019.  The owner of the remaining 20.0% equity interest, a private real estate company, is responsible for the development and construction of the community. The Company will lease-up the property when units are delivered and operate and manage the community upon its completion.  The entity was determined to be a VIE with the Company designated as the primary beneficiary.  As a result, the accounts of the entity are consolidated by the Company.  As of June 30, 2019, the consolidated assets and liabilities included development and capital improvements in process of $8.7 million; land of $9.4 million; and accrued expenses and other liabilities of $2.0 million.

Fair Value Measurements

The Company applies the guidance in Accounting Standards Codification, or ASC, Topic 820, Fair Value Measurements and Disclosures, to the valuation of real estate assets recorded at fair value, if any; to its impairment valuation analysis of real estate assets; to its disclosure of the fair value of financial instruments, principally indebtedness; and to its derivative financial instruments.  Fair value disclosures required under ASC Topic 820 are summarized in Note 7 utilizing the following hierarchy:

Level 1 - Quoted prices in active markets for identical assets or liabilities that are accessible at the measurement date.

Level 2 - Inputs other than quoted prices that are observable for the asset or liability, either directly or indirectly.

Level 3 - Unobservable inputs for the assets or liability.

Leases

In 2016, the Financial Accounting Standard Board, or FASB, issued Accounting Standard Update, or ASU, 2016-02, Leases (Topic 842), which established new principles, presentation and disclosure requirements for lease accounting for both the lessee and lessor. On January 1, 2019, management adopted ASU 2016-02 using the modified retrospective transition approach with an effective date as of the adoption date and elected certain practical expedients allowed by the new standard. Under the new standard, lessors are required to account for leases in a similar manner as previous lease accounting guidance but aligned with the newly adopted revenue recognition standard.  Lessees are required to record most leases on the balance sheet and recognize lease expense in the income statement in a manner similar to previous practice. The new standard requires a lessee to recognize a lease liability for the obligation to make lease payments and a right-of-use asset for the right to use the underlying asset for all leases with terms of more than twelve months. Expenses related to leases determined to be operating leases are recognized on a straight-line basis, while expenses related to leases determined to be financing leases are recognized based on an effective interest method in which interest and amortization are presented separately in the income statement.

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Comparative periods presented in this Quarterly Report on Form 10-Q continue to apply guidance in ASC Topic 840, Leases, and have not been recast as the Company adopted the new standard using the modified retrospective transition approach effective as of January 1, 2019. The adoption of the new lease standard has not resulted in a significant change in the accounting for the Company’s rental revenues as the Company's residential, retail and commercial leases, where it is the lessor, will continue to be accounted for as operating leases. Management has elected available practical expedients that provide lessors an option not to separate lease and non-lease components when certain criteria are met, and instead, allow for those components to be accounted for as a single lease component. Thus, beginning with the effective date of the adoption of the new standard, January 1, 2019, rental revenues and non-lease reimbursable property revenues meet the criteria to be aggregated into a single lease component and are reported in the line item, "Rental revenues", as presented in the disaggregation of the Company's revenues in Note 11.

The Company is the lessee under certain ground, office, equipment and other operating leases. Based on its election of the package of practical expedients provided in ASU 2016-02, the Company did not reassess the classification of existing leases with its adoption of ASC Topic 842.  The Company’s existing leases as of January 1, 2019 will continue to be accounted for as operating leases; however, if contracts are modified subsequent to the adoption of ASC Topic 842, the Company will be required to reassess the contracts using guidance provided under ASC Topic 842.  The Company recognized total right-of-use assets of $54.3 million within "Other assets" and related lease obligations of $33.6 million within "Accrued expenses and other liabilities" on its Condensed Consolidated Balance Sheets for leases in effect as of January 1, 2019.  As of June 30, 2019, the balance of total right-of-use assets within “Other assets” was $53.5 million, and the balance of related lease obligations within “Accrued expenses and other liabilities” was $33.2 million.  As most leases do not provide a readily determinable implicit rate to discount future minimum lease payments to present value, management estimated the Company's incremental borrowing rate based on information available as of the date of adoption and based on the remaining lease terms as of the date of initial application.  Operating leases recognized upon adoption had a weighted-average remaining lease term of approximately 33 years and a weighted-average discount rate of approximately 4.4%.  Operating leases as of June 30, 2019 have a weighted-average remaining lease term of approximately 32 years and a weighted-average discount rate of approximately 4.4%.  Lease expense for the six months ended June 30, 2019, recognized under ASC Topic 842, continued to be immaterial for the Company and was recognized in a similar manner as compared to the six months ended June 30, 2018. Cash paid for amounts included in the measurement of operating lease liabilities during the six months ended June 30, 2019 was also immaterial.

Revenue Recognition

The Company primarily leases multifamily residential apartments under operating leases generally due on a monthly basis with terms of approximately one year or less, which are recorded as operating leases.  Rental revenues are recognized in accordance with ASC Topic 842 using a method that represents a straight-line basis over the term of the lease. In addition, in circumstances where a lease incentive is provided to tenants, the incentive is recognized as a reduction of rental revenues on a straight-line basis over the reasonably assured lease term.  Rental revenues represent approximately 93% of the Company's total revenues and include gross rents charged less adjustments for concessions and bad debt.  Approximately 6% of the Company's total revenues represents reimbursable property revenues from its tenants for utility reimbursements, which are generally recognized and due on a monthly basis as tenants obtain control of the service over the term of the lease.  The remaining 1% of the Company's total revenues represents other non-lease revenues primarily driven by nonrefundable fees and commissions.

With the adoption of ASC Topic 842, rental revenues and non-lease reimbursable property revenues meet the criteria to be aggregated into a single lease component and to be reported in a single line, while non-lease reimbursable property revenues recognized prior to January 1, 2019 will continue to be reported as non-lease revenues and recognized in accordance with ASC Topic 606, Revenue Recognition. The guidance requires that revenue recognized outside of the scope of ASC Topic 842 is recognized when a customer obtains control of promised goods or services in an amount that reflects the consideration the entity expects to receive in exchange for those goods or services.

2.Earnings per Common Share of MAA

Basic earnings per share is computed using the two-class method by dividing net income available to MAA common shareholders by the weighted average number of common shares outstanding during the period.  All outstanding unvested restricted share awards contain rights to non-forfeitable dividends and participate in undistributed earnings with 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 diluted earnings per share being the more dilutive of the treasury stock or two-class methods.  OP Units are included in dilutive earnings per share calculations when the units are dilutive to earnings per share.

15

For the three and six months ended June 30, 2019 and 2018, MAA's diluted earnings per share was computed using the treasury stock method as presented below (dollars and shares in thousands, except per share amounts):

	Three months ended June 30,						Six months ended June 30,
	2019			2018			2019			2018
Calculation of Earnings per Common Share - basic
Net income	$	64,141		$	61,981		$	130,099		$	112,801
Net income attributable to noncontrolling interests		(2,224	)		(2,174	)		(4,522	)		(3,975	)
Unvested restricted stock (allocation of earnings)		(96	)		(78	)		(184	)		(142	)
Preferred dividends		(922	)		(922	)		(1,844	)		(1,844	)
Net income available for common shareholders, adjusted	$	60,899		$	58,807		$	123,549		$	106,840
Weighted average common shares - basic		113,838			113,646			113,783			113,595
Earnings per common share - basic	$	0.53		$	0.52		$	1.09		$	0.94
Calculation of Earnings per Common Share - diluted
Net income	$	64,141		$	61,981		$	130,099		$	112,801
Net income attributable to noncontrolling interests (1)		(2,224	)		(2,174	)		(4,522	)		(3,975	)
Preferred dividends		(922	)		(922	)		(1,844	)		(1,844	)
Net income available for common shareholders, adjusted	$	60,995		$	58,885		$	123,733		$	106,982
Weighted average common shares - basic		113,838			113,646			113,783			113,595
Effect of dilutive securities		249			207			211			174
Weighted average common shares - diluted		114,087			113,853			113,994			113,769
Earnings per common share - diluted	$	0.53		$	0.52		$	1.09		$	0.94

⁽¹⁾ For the three months ended June 30, 2019 and June 30, 2018, 4.1 million OP Units and their related income are not included in the diluted earnings per share calculations as they are not dilutive. For the six months ended June 30, 2019 and June 30, 2018, 4.1 million OP Units and 4.2 million OP Units, respectively, and their related income are not included in the diluted earnings per share calculations as they are not dilutive.

3.Earnings per OP Unit of MAALP

Basic earnings per common unit is computed using the two-class method by dividing net income available for common unitholders by the weighted average number of OP Units outstanding during the period.  All outstanding unvested restricted unit awards contain rights to non-forfeitable distributions 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 common unit.  Diluted earnings per common unit reflects the potential dilution that could occur if securities or other contracts to issue OP Units were exercised or converted into OP Units.  Both the unvested restricted unit awards and other potentially dilutive common units, and the related impact to earnings, are considered when calculating earnings per common unit on a diluted basis with diluted earnings per common unit being the more dilutive of the treasury stock or two-class methods.

16

For the three and six months ended June 30, 2019 and 2018, MAA's diluted earnings per common unit was computed using the treasury stock method as presented below (dollars and units in thousands, except per unit amounts):

	Three months ended June 30,						Six months ended June 30,
	2019			2018			2019			2018
Calculation of Earnings per Common Unit - basic
Net income	$	64,141		$	61,981		$	130,099		$	112,801
Unvested restricted stock (allocation of earnings)		(96	)		(78	)		(184	)		(142	)
Preferred unit distributions		(922	)		(922	)		(1,844	)		(1,844	)
Net income available for common unitholders, adjusted	$	63,123		$	60,981		$	128,071		$	110,815
Weighted average common units - basic		117,935			117,783			117,886			117,754
Earnings per common unit - basic	$	0.53		$	0.52		$	1.09		$	0.94
Calculation of Earnings per Common Unit - diluted
Net income	$	64,141		$	61,981		$	130,099		$	112,801
Preferred unit distributions		(922	)		(922	)		(1,844	)		(1,844	)
Net income available for common unitholders, adjusted	$	63,219		$	61,059		$	128,255		$	110,957
Weighted average common units - basic		117,935			117,783			117,886			117,754
Effect of dilutive securities		249			207			211			174
Weighted average common units - diluted		118,184			117,990			118,097			117,928
Earnings per common unit - diluted	$	0.53		$	0.52		$	1.09		$	0.94

4.MAA Equity

Changes in total equity and its components for the three months ended June 30, 2019 and 2018 were as follows (dollars in thousands):

	Mid-America Apartment Communities, Inc. Shareholders' Equity
	Preferred Stock		Common Stock		Additional Paid-In Capital			Accumulated Distributions in Excess of Net Income			Accumulated Other Comprehensive Loss			Noncontrolling Interests - Operating Partnership			Noncontrolling Interests - Consolidated Real Estate Entities		Total Equity
EQUITY BALANCE MARCH 31, 2019	$	9	$	1,137	$	7,141,544		$	(1,037,268	)	$	(3,300	)	$	218,011		$	5,166	$	6,325,299
Net income		—		—		—			61,917			—			2,224			—		64,141
Other comprehensive loss - derivative    instruments		—		—		—			—			(5,792	)		(212	)		—		(6,004	)
Issuance and registration of common shares		—		1		(520	)		—			—			—			—		(519	)
Shares repurchased and retired		—		—		(701	)		—			—			—			—		(701	)
Exercise of stock options		—		—		1,032			—			—			—			—		1,032
Shares issued in exchange for common units		—		—		821			—			—			(821	)		—		—
Shares issued in exchange for redeemable stock		—		—		575			—			—			—			—		575
Redeemable stock fair market value adjustment		—		—		—			(835	)		—			—			—		(835	)
Adjustment for noncontrolling interests in    Operating Partnership		—		—		(127	)		—			—			127			—		—
Amortization of unearned compensation		—		—		3,452			—			—			—			—		3,452
Dividends on preferred stock		—		—		—			(922	)		—			—			—		(922	)
Dividends on common stock  ($0.9600 per share)		—		—		—			(109,557	)		—			—			—		(109,557	)
Dividends on noncontrolling interests units    ($0.9600 per unit)		—		—		—			—			—			(3,925	)		—		(3,925	)
Contribution from noncontrolling interest		—		—		—			—			—			—			490		490
EQUITY BALANCE JUNE 30, 2019	$	9	$	1,138	$	7,146,076		$	(1,086,665	)	$	(9,092	)	$	215,404		$	5,656	$	6,272,526

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	Mid-America Apartment Communities, Inc. Shareholders' Equity
	Preferred Stock		Common Stock		Additional Paid-In Capital			Accumulated Distributions in Excess of Net Income			Accumulated Other Comprehensive Income		Noncontrolling Interests - Operating Partnership			Noncontrolling Interests - Consolidated Real Estate Entities		Total Equity
EQUITY BALANCE MARCH 31, 2018	$	9	$	1,135	$	7,127,740		$	(840,642	)	$	3,000	$	226,815		$	2,306	$	6,520,363
Net income		—		—		—			59,807			—		2,174			—		61,981
Other comprehensive income - derivative instruments		—		—		—			—			4,986		179			—		5,165
Issuance and registration of common shares		—		—		(341	)		—			—		—			—		(341	)
Shares issued in exchange for common units		—		1		337			—			—		(338	)		—		—
Redeemable stock fair market value adjustment		—		—		—			(892	)		—		—			—		(892	)
Adjustment for noncontrolling interests in    Operating Partnership		—		—		203			—			—		(203	)		—		—
Amortization of unearned compensation		—		—		2,963			—			—		—			—		2,963
Dividends on preferred stock		—		—		—			(922	)		—		—			—		(922	)
Dividends on common stock ($0.9225 per share)		—		—		—			(105,023	)		—		—			—		(105,023	)
Dividends on noncontrolling interests units    ($0.9225 per unit)		—		—		—			—			—		(3,814	)		—		(3,814	)
EQUITY BALANCE JUNE 30, 2018	$	9	$	1,136	$	7,130,902		$	(887,672	)	$	7,986	$	224,813		$	2,306	$	6,479,480

Changes in total equity and its components for the six months ended June 30, 2019 and 2018 were as follows (dollars in thousands):

	Mid-America Apartment Communities, Inc. Shareholders' Equity
	Preferred Stock		Common Stock		Additional Paid-In Capital			Accumulated Distributions in Excess of Net Income			Accumulated Other Comprehensive Loss			Noncontrolling Interests - Operating Partnership			Noncontrolling Interests - Consolidated Real Estate Entities		Total Equity
EQUITY BALANCE DECEMBER 31, 2018	$	9	$	1,136	$	7,138,170		$	(989,263	)	$	(212	)	$	220,043		$	2,306	$	6,372,189
Net income		—		—		—			125,577			—			4,522			—		130,099
Other comprehensive loss - derivative    instruments		—		—		—			—			(8,880	)		(325	)		—		(9,205	)
Issuance and registration of common shares		—		2		608			—			—			—			—		610
Shares repurchased and retired		—		—		(3,724	)		—			—			—			—		(3,724	)
Exercise of stock options		—		—		1,240			—			—			—			—		1,240
Shares issued in exchange for common units		—		—		1,157			—			—			(1,157	)		—		—
Shares issued in exchange for redeemable stock		—		—		575			—			—			—			—		575
Redeemable stock fair market value adjustment		—		—		—			(2,186	)		—			—			—		(2,186	)
Adjustment for noncontrolling interests in    Operating Partnership		—		—		(187	)		—			—			187			—		—
Amortization of unearned compensation		—		—		8,237			—			—			—			—		8,237
Dividends on preferred stock		—		—		—			(1,844	)		—			—			—		(1,844	)
Dividends on common stock  ($1.9200 per share)		—		—		—			(218,949	)		—			—			—		(218,949	)
Dividends on noncontrolling interests units    ($1.9200 per unit)		—		—		—			—			—			(7,866	)		—		(7,866	)
Contribution from noncontrolling interest		—		—		—			—			—			—			3,350		3,350
EQUITY BALANCE JUNE 30, 2019	$	9	$	1,138	$	7,146,076		$	(1,086,665	)	$	(9,092	)	$	215,404		$	5,656	$	6,272,526

18

	Mid-America Apartment Communities, Inc. Shareholders' Equity
	Preferred Stock		Common Stock		Additional Paid-In Capital			Accumulated Distributions in Excess of Net Income			Accumulated Other Comprehensive Income		Noncontrolling Interests - Operating Partnership			Noncontrolling Interests - Consolidated Real Estate Entities		Total Equity
EQUITY BALANCE DECEMBER 31, 2017	$	9	$	1,134	$	7,121,112		$	(784,500	)	$	2,157	$	231,676		$	2,306	$	6,573,894
Net income		—		—		—			108,826			—		3,975			—		112,801
Other comprehensive income - derivative instruments		—		—		—			—			5,596		208			—		5,804
Issuance and registration of common shares		—		1		(237	)		—			—		—			—		(236	)
Shares repurchased and retired		—		—		(2,912	)		—			—		—			—		(2,912	)
Exercise of stock options		—		—		625			—			—		—					625
Shares issued in exchange for common units		—		1		3,117			—			—		(3,118	)		—		—
Shares issued in exchange for redeemable stock		—		—		1,915			—			—		—			—		1,915
Redeemable stock fair market value adjustment		—		—		—			73			—		—			—		73
Adjustment for noncontrolling interests in    Operating Partnership		—		—		295			—			—		(295	)		—		—
Cumulative adjustment due to adoption of ASU    2017-12				—		—			(233	)		233		—			—		—
Amortization of unearned compensation		—		—		6,987			—			—		—			—		6,987
Dividends on preferred stock		—		—		—			(1,844	)		—		—			—		(1,844	)
Dividends on common stock ($1.8450 per share)		—		—		—			(209,994	)		—		—			—		(209,994	)
Dividends on noncontrolling interests units    ($1.8450 per unit)		—		—		—			—			—		(7,633	)		—		(7,633	)
EQUITY BALANCE JUNE 30, 2018	$	9	$	1,136	$	7,130,902		$	(887,672	)	$	7,986	$	224,813		$	2,306	$	6,479,480

5.MAALP Capital

Changes in total capital and its components for the three months ended June 30, 2019 and 2018 were as follows (dollars in thousands):

	Mid-America Apartments, L.P. Unitholders' Capital
	Limited Partner			General Partner			Preferred Units			Accumulated Other Comprehensive Loss			Noncontrolling Interests- Consolidated Real Estate Entities		Total Partnership Capital
CAPITAL BALANCE MARCH 31, 2019	$	218,011		$	6,038,625		$	66,840		$	(3,362	)	$	5,166	$	6,325,280
Net income		2,224			60,995			922			—			—		64,141
Other comprehensive loss - derivative instruments		—			—			—			(6,004	)		—		(6,004	)
Issuance of units		—			(519	)		—			—			—		(519	)
Units repurchased and retired		—			(701	)		—			—			—		(701	)
Exercise of unit options		—			1,032			—			—			—		1,032
General partnership units issued in exchange for limited partnership units		(821	)		821			—			—			—		—
Units issued in exchange for redeemable units		—			575			—			—			—		575
Redeemable units fair market value adjustment		—			(835	)		—			—			—		(835	)
Adjustment for limited partners' capital at redemption value		(85	)		85			—			—			—		—
Amortization of unearned compensation		—			3,452			—			—			—		3,452
Distributions to preferred unitholders		—			—			(922	)		—			—		(922	)
Distributions to common unitholders ($0.9600 per unit)		(3,925	)		(109,557	)		—			—			—		(113,482	)
Contribution from noncontrolling interest		—			—			—			—			490		490
CAPITAL BALANCE JUNE 30, 2019	$	215,404		$	5,993,973		$	66,840		$	(9,366	)	$	5,656	$	6,272,507

19

	Mid-America Apartments, L.P. Unitholders' Capital
	Limited Partner			General Partner			Preferred Units			Accumulated Other Comprehensive Income		Noncontrolling Interests - Consolidated Real Estate Entities		Total Partnership Capital
CAPITAL BALANCE MARCH 31, 2018	$	226,815		$	6,221,216		$	66,840		$	3,167	$	2,306	$	6,520,344
Net income		2,174			58,885			922			—		—		61,981
Other comprehensive income - derivative instruments		—			—			—			5,165		—		5,165
Issuance of units		—			(341	)		—			—		—		(341	)
General partnership units issued in exchange for limited partnership units		(338	)		338			—			—		—		—
Redeemable units fair market value adjustment		—			(892	)		—			—		—		(892	)
Adjustment for limited partners' capital at redemption value		(24	)		24			—			—		—		—
Amortization of unearned compensation		—			2,963			—			—		—		2,963
Distributions to preferred unitholders		—			—			(922	)		—		—		(922	)
Distributions to common unitholders ($0.9225 per unit)		(3,814	)		(105,023	)		—			—		—		(108,837	)
CAPITAL BALANCE JUNE 30, 2018	$	224,813		$	6,177,170		$	66,840		$	8,332	$	2,306	$	6,479,461

Changes in total capital and its components for the six months ended June 30, 2019 and 2018 were as follows (dollars in thousands):

	Mid-America Apartments, L.P. Unitholders' Capital
	Limited Partner			General Partner			Preferred Units			Accumulated Other Comprehensive Loss			Noncontrolling Interests- Consolidated Real Estate Entities		Total Partnership Capital
CAPITAL BALANCE DECEMBER 31, 2018	$	220,043		$	6,083,142		$	66,840		$	(161	)	$	2,306	$	6,372,170
Net income		4,522			123,733			1,844			—			—		130,099
Other comprehensive loss - derivative instruments		—			—			—			(9,205	)		—		(9,205	)
Issuance of units		—			610			—			—			—		610
Units repurchased and retired		—			(3,724	)		—			—			—		(3,724	)
Exercise of unit options		—			1,240			—			—			—		1,240
General partnership units issued in exchange for limited partnership units		(1,157	)		1,157			—			—			—		—
Units issued in exchange for redeemable units		—			575			—			—			—		575
Redeemable units fair market value adjustment		—			(2,186	)		—			—			—		(2,186	)
Adjustment for limited partners' capital at redemption value		(138	)		138			—			—			—		—
Amortization of unearned compensation		—			8,237			—			—			—		8,237
Distributions to preferred unitholders		—			—			(1,844	)		—			—		(1,844	)
Distributions to common unitholders ($1.9200 per unit)		(7,866	)		(218,949	)		—			—			—		(226,815	)
Contribution from noncontrolling interest		—			—			—			—			3,350		3,350
CAPITAL BALANCE JUNE 30, 2019	$	215,404		$	5,993,973		$	66,840		$	(9,366	)	$	5,656	$	6,272,507

	Mid-America Apartments, L.P. Unitholders' Capital
	Limited Partner			General Partner			Preferred Units			Accumulated Other Comprehensive Income		Noncontrolling Interests - Consolidated Real Estate Entities		Total Partnership Capital
CAPITAL BALANCE DECEMBER 31, 2017	$	231,676		$	6,270,758		$	66,840		$	2,295	$	2,306	$	6,573,875
Net income		3,975			106,982			1,844			—		—		112,801
Other comprehensive income - derivative instruments		—			—			—			5,804		—		5,804
Issuance of units		—			(236	)		—			—		—		(236	)
Units repurchased and retired		—			(2,912	)		—			—		—		(2,912	)
Exercise of unit options		—			625			—			—		—		625
General partnership units issued in exchange for limited partnership units		(3,118	)		3,118			—			—		—		—
Units issued in exchange for redeemable units		—			1,915			—			—		—		1,915
Redeemable units fair market value adjustment		—			73			—			—		—		73
Adjustment for limited partners' capital at redemption value		(87	)		87			—			—		—		—
Cumulative adjustment due to adoption of ASU 2017-12		—			(233	)		—			233		—		—
Amortization of unearned compensation		—			6,987			—			—		—		6,987
Distributions to preferred unitholders		—			—			(1,844	)		—		—		(1,844	)
Distributions to common unitholders ($1.8450 per unit)		(7,633	)		(209,994	)		—			—		—		(217,627	)
CAPITAL BALANCE JUNE 30, 2018	$	224,813		$	6,177,170		$	66,840		$	8,332	$	2,306	$	6,479,461

20

6.Borrowings

The following table summarizes the Company's outstanding debt as of June 30, 2019 (dollars in thousands):

	Balance			Weighted Average Effective Rate			Weighted Average Contract Maturity
Unsecured debt
Variable rate revolving credit facility	$	—			—			—
Variable rate commercial paper program		367,000			2.7	%	7/16/2019
Fixed rate senior notes		2,942,000			4.0	%	11/26/2025
Term loans fixed with swaps		300,000			2.3	%	3/1/2022
Variable rate term loans		300,000			3.4	%	8/29/2020
Debt issuance costs, discounts and fair market value adjustments		(29,474	)
Total unsecured debt	$	3,879,526			3.7	%
Fixed rate secured debt
Individual property mortgages	$	663,764			4.5	%	5/17/2036
Debt issuance costs and fair market value adjustments		(3,301	)
Total secured debt	$	660,463			4.5	%
Total outstanding debt	$	4,539,989			3.8	%

Unsecured Revolving Credit Facility

In May 2019, MAALP entered into a $1.0 billion unsecured revolving credit facility with a syndicate of banks led by Wells Fargo Bank, National Association, or Wells Fargo, and fifteen other banks, which is referred to as the Credit Facility.  The Credit Facility replaced the previous credit facility and includes an expansion option up to $1.5 billion.  The Credit Facility bears an interest rate of the London Interbank Offered Rate, or LIBOR, plus a spread of 0.75% to 1.45% based on an investment grade pricing grid. The Credit Facility matures in May 2023 with an option to extend for two additional six-month periods.  As of June 30, 2019, MAALP had no balance outstanding under the Credit Facility, while $2.5 million of capacity was being used to support outstanding letters of credit.

Unsecured Commercial Paper

During May 2019, MAALP established an unsecured commercial paper program whereby MAALP can issue unsecured commercial paper notes with varying maturities not to exceed 397 days up to a maximum aggregate principal amount outstanding of $500.0 million.  As of June 30, 2019, MAALP had $367.0 million outstanding under the commercial paper program.

Senior Unsecured Notes

As of June 30, 2019, MAALP had approximately $2.7 billion in principal amount of publicly issued senior unsecured notes and $242.0 million of privately placed senior unsecured notes.  The senior unsecured notes had maturities at issuance ranging from seven to twelve years, with an average of 6.4 years remaining until maturity as of June 30, 2019.

In March 2019, MAALP publicly issued $300.0 million in aggregate principal amount of senior unsecured notes, maturing March 2029 with an interest rate of 3.950% per annum, or the 2029 Notes.  The purchase price paid by the initial purchasers was 99.720% of the principal amount.  The 2029 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 2029 Notes is payable on March 15 and September 15 of each year, beginning on September 15, 2019.  The net proceeds of the offering, after deducting the original issue discount, underwriting commissions and expenses of approximately $2.8 million, were $297.2 million.  The 2029 Notes have been reflected net of discount and debt issuance costs in the Condensed Consolidated Balance Sheets as of June 30, 2019.  In connection with the issuance of the 2029 Notes, MAALP cash settled $300.0 million in forward interest rate swap agreements, entered into during the second half of 2018 to effectively lock the interest rate on the planned transaction, resulting in an effective interest rate of 4.240% over the ten year life of the 2029 Notes.

21

Unsecured Term Loans

As of June 30, 2019, the Company maintained three term loans with a syndicate of banks, one led by U.S. Bank National Association, or U.S. Bank, one led by KeyBank National Association, or KeyBank, and one by Wells Fargo.  The U.S. Bank term loan has a balance of $150.0 million, matures in 2020, and has a variable interest rate of LIBOR plus a spread of 0.90% to 1.90% based on the Company's credit ratings.  The KeyBank term loan has a balance of $150.0 million, matures in 2021, and has a variable interest rate of LIBOR plus a spread of 0.90% to 1.75% based on the Company's credit ratings.  The Wells Fargo term loan has a balance of $300.0 million, matures in 2022, and has a variable interest rate of LIBOR plus a spread of 0.90% to 1.75% based on the Company's credit ratings.  The interest rate of the Wells Fargo term loan due in 2022 is fixed at 2.32% with a forward swap through the swap's maturity date, January 2020.  

In May 2019, the Company retired a $300.0 million unsecured term loan with Wells Fargo due in June 2019.

Secured Property Mortgages

As of June 30, 2019, the Company had $663.8 million of fixed rate conventional property mortgages with a weighted average interest rate of 4.50% and a weighted average maturity in 2036, which includes a $191.3 million mortgage with a fixed rate of 4.43% associated with seven apartment communities entered into in February 2019.  The mortgage is scheduled to mature in February 2049.

Guarantees

As of June 30, 2019, MAA fully and unconditionally guaranteed $242.0 million of the privately placed senior unsecured notes issued by MAALP.

7.Financial Instruments and Derivatives

Financial Instruments Not Carried at Fair Value

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

Fixed rate notes payable as of June 30, 2019 and December 31, 2018, totaled $3.6 billion and $3.1 billion, respectively, and had estimated fair values of $3.8 billion and $3.1 billion (excluding prepayment penalties) as of June 30, 2019 and December 31, 2018, respectively.  The carrying values of variable rate notes payable (excluding the impact of interest rate swap agreements) as of June 30, 2019 and December 31, 2018, totaled $0.9 billion and $1.1 billion, respectively, and had estimated fair values of $0.9 billion and $1.1 billion (excluding prepayment penalties) as of June 30, 2019 and December 31, 2018, respectively.  The fair values of fixed rate 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 rate debt are determined using the stated variable rate plus the current market credit spread. The variable rates reset every 30 to 90 days, and management concluded that these rates reasonably estimate current market rates.

Financial Instruments Measured at Fair Value on a Recurring Basis

As of June 30, 2019, the Company had four outstanding interest rate derivatives with a total current notional balance of $300.0 million that were designated as cash flow hedges of interest rate risk and two forward rate swaps totaling $150.0 million, which hedge the first 10 years of interest rate payments on debt the Company anticipates issuing in the future. The Company uses interest rate swaps to add stability to interest expense; to manage, or hedge, its exposure to interest rate movements associated with its variable rate debt; or as hedges in anticipation of future debt transactions. 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 value of interest rate derivative contracts designated as hedging instruments recorded in "Other assets" in the accompanying Condensed Consolidated Balance Sheets was $1.1 million and $3.7 million as of June 30, 2019 and December 31, 2018, respectively.  The fair value of interest rate derivative contract liabilities recorded in "Accrued expenses and other liabilities" in the accompanying Condensed Consolidated Balance Sheet was $4.8 million and $5.3 million as of June 30, 2019 and December 31, 2018, respectively.  

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

22

The derivative asset related to the redemption feature embedded in the MAA Series I preferred stock is valued using widely accepted valuation techniques, including a discounted cash flow analysis in which the perpetual value of the preferred shares is compared to the value of the preferred shares assuming the call option is exercised, with the value of the bifurcated call option as the difference between the two values. This analysis reflects the contractual terms of the redeemable preferred shares, which are redeemable at the Company's option beginning on October 1, 2026 and at the redemption price of $50 per share (see Note 8). The analysis uses observable market-based inputs, including trading data available on the preferred shares, coupon yields on preferred stock issuances from REITs with similar credit ratings as MAA and treasury rates to determine the fair value of the bifurcated call option.

The redemption feature embedded in the MAA Series I preferred stock is reported as a derivative asset in "Other assets" in the accompanying Condensed Consolidated Balance Sheets and is adjusted to its fair value at each reporting date, with a corresponding non-cash adjustment to "Other non-operating income" in the accompanying Condensed Consolidated Statements of Operations. As a result of adjustments of non-cash income recorded to reflect the change in fair value of the derivative asset during the six months ended June 30, 2019, the fair value of the embedded derivative increased to $22.7 million as of June 30, 2019 as compared to $18.6 million as of December 31, 2018.

The Company has determined the majority of the inputs used to value its outstanding debt and derivatives, including its embedded derivative, fall within Level 2 of the fair value hierarchy, and as a result, the fair value valuation of its debt and all of its derivatives held as of June 30, 2019 and December 31, 2018 were classified as Level 2 in the fair value hierarchy.  The Company's derivative financial instruments and their related gains and losses are reported in "Net change in operating accounts and other" in the accompanying Condensed Consolidated Statements of Cash Flows.

Cash Flow Hedges of Interest Rate Risk

The changes in the fair value of derivatives designated and that qualify as cash flow hedges is recorded in "Accumulated other comprehensive loss" and is subsequently reclassified into earnings in the period that the hedged forecasted transaction affects earnings. As long as a hedging instrument is designated and the results of the effectiveness testing support that the instrument qualifies for hedge accounting treatment, there is no periodic measurement or recognition of ineffectiveness. Rather, the full impact of hedge gains and losses will be recognized in the period in which hedged transactions impact earnings, regardless of whether or not economic mismatches exist in the hedging relationship.  Amounts reported in "Accumulated other comprehensive loss" related to derivatives designated as qualifying cash flow hedges will be reclassified to interest expense as interest payments are made on the Company's variable rate or fixed rate debt. During the next twelve months, the Company estimates that an additional $0.1 million will be reclassified to earnings as a decrease to "Interest expense", which primarily represents the difference between the fixed interest rate swap payments and the projected variable interest rate swap receipts.

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

The tables below present the effect of the Company's derivative financial instruments on the Condensed Consolidated Statements of Operations for the three and six months ended June 30, 2019 and 2018 (dollars in thousands):

Derivatives in Cash Flow Hedging Relationships	(Loss) Gain Recognized in OCI on Derivative					Location of Gain Reclassified from Accumulated	Net Gain Reclassified from Accumulated OCL into Interest Expense(1)
Three months ended June 30,	2019			2018		OCL into Income	2019		2018
Interest rate contracts	$	(5,426	)	$	5,720	Interest expense	$	578	$	555
Six months ended June 30,
Interest rate contracts	$	(7,882	)	$	6,552	Interest expense	$	1,323	$	748

⁽¹⁾ See the Condensed Consolidated Statements of Comprehensive Income for changes in accumulated other comprehensive loss as these changes are presented net of the allocation to noncontrolling interests.

Derivatives Not Designated as Hedging Instruments	Location of Gain Recognized in	Gain Recognized in Earnings on Derivative
For the three months ended June 30,	Income on Derivative	2019		2018
Preferred stock embedded derivative	Other non-operating income	$	4,594	$	2,793
For the six months ended June 30,
Preferred stock embedded derivative	Other non-operating income	$	4,070	$	149

23

Credit-Risk-Related Contingent Features

Certain of the Company's derivative contracts contain a provision where the Company could be declared in default on its derivative obligations if repayment of the underlying indebtedness is accelerated by the lender due to the Company's default on the indebtedness. As of June 30, 2019, the Company had not breached the provisions of these agreements. If the provisions had been breached, the Company could have been required to settle its obligations under the agreements at the termination value of $4.2 million as of June 30, 2019.   Although the Company's derivative contracts are subject to master netting arrangements, which serve as credit mitigants to both the Company and its counterparties under certain situations, the Company does not net its derivative fair values or any existing rights or obligations to cash collateral in the Condensed Consolidated Balance Sheets.

8.Shareholders' Equity of MAA

As of June 30, 2019, 114,043,089 shares of common stock of MAA and 4,090,083 OP Units (excluding the OP Units held by MAA) were issued and outstanding, representing a total of 118,133,172 shares and units.  As of June 30, 2018, 113,808,292 shares of common stock of MAA and 4,135,668 OP Units (excluding the OP Units held by MAA) were outstanding, representing a total of 117,943,960 shares and units.  Options to purchase 60,442 shares of MAA's common stock were outstanding as of June 30, 2019, compared to 95,838 outstanding options as of June 30, 2018.  During the six months ended June 30, 2019 and 2018, MAA issued 20,718 shares and 12,600 shares, respectively, related to the exercise of stock options.  These exercises resulted in proceeds of $1.2 million and $0.6 million, respectively.

Preferred Stock

As of June 30, 2019, MAA had one outstanding series of cumulative redeemable preferred stock, which has the following characteristics:

Description	Outstanding Shares		Liquidation Preference(1)		Optional Redemption Date	Redemption Price (2)		Stated Dividend Yield			Approximate Dividend Rate
Series I		867,846	$	50.00	10/1/2026	$	50.00		8.50	%	$	4.25

⁽¹⁾ The total liquidation preference for the outstanding preferred stock is $43.4 million.

⁽²⁾ The redemption price is the price at which the preferred stock is redeemable, at MAA's option, for cash.

9.Partners' Capital of MAALP

Common units of limited partnership interests in MAALP are represented by OP Units.  As of June 30, 2019, there were 118,133,172 OP Units outstanding, 114,043,089, or 96.5%, of which represent Class B OP Units (common units issued to or held by MAALP's general partner or any of its subsidiaries), which were owned by MAA, MAALP's general partner.  The remaining 4,090,083 OP Units were Class A OP Units owned by Class A limited partners.  As of June 30, 2018, there were 117,943,960 OP Units outstanding, 113,808,292, or 96.5%, of which were owned by MAA and 4,135,668 of which were owned by the Class A limited partners.

MAA, as the sole general partner of MAALP, has full, complete and exclusive discretion to manage and control the business of MAALP subject to the restrictions specifically contained within MAALP's agreement of limited partnership, or the Partnership Agreement.  Unless otherwise stated in the Partnership Agreement, 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 MAALP's assets; and distribution of MAALP's 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, MAALP may issue Class A OP Units and Class B OP Units.  Class A OP Units are any OP Units other than Class B OP Units, while Class B OP Units are those issued to or held by MAALP's general partner or any of its subsidiaries.  In general, the limited partners do not have the power to participate in the management or control of MAALP'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 (after allocations to preferred ownership interests) is allocated to the general partner and limited partners based on their respective ownership percentages of MAALP.  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 MAALP 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

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stock, MAALP generally redeems an equal number of Class B OP Units with similar terms held by MAA for a redemption price equal to the 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 MAALP.  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 NYSE 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 June 30, 2019, a total of 4,090,083 Class A OP Units were outstanding and redeemable for 4,090,083 shares of MAA common stock, with an approximate value of $481.6 million, based on the closing price of MAA’s common stock on June 28, 2019 of $117.76 per share.  At June 30, 2018, a total of 4,135,668 Class A OP Units were outstanding and redeemable for 4,135,668 shares of MAA common stock, with an approximate value of $416.3 million, based on the closing price of MAA’s common stock on June 29, 2018 of $100.67 per share.  MAALP pays the same per unit distributions in respect to the OP Units as the per share dividends MAA pays in respect to its common stock.

As of June 30, 2019, MAALP had one outstanding series of cumulative redeemable preferred units, or the MAALP Series I Preferred Units.  The MAALP Series I Preferred Units have the same characteristics as the MAA Series I preferred stock described in Note 8.  As of June 30, 2019, 867,846 units of the MAALP Series I Preferred Units were outstanding.

10.Commitments and Contingencies

Leases

The Company's leases include a ground lease expiring in 2074 related to one of its apartment communities and an office lease expiring in 2028 related to its corporate headquarters.  Both leases contain stated rent increases that generally compensate for the impact of inflation.  The Company also has other immaterial office and equipment operating leases.

The table below reconciles undiscounted cash flows for each of the first five years and total of the remaining years to the operating lease obligations recorded on the Condensed Consolidated Balance Sheet as of June 30, 2019 (in thousands):

	Operating Leases
2019	$	1,367
2020		2,744
2021		2,771
2022		2,767
2023		2,761
Thereafter		68,516
Total minimum lease payments		80,926
Net present value adjustments		(47,692	)
Operating lease obligations	$	33,234

Legal Proceedings

In June 2016, plaintiffs Cathi Cleven and Tara Cleven, on behalf of a purported class of plaintiffs, filed a complaint against MAA and the Operating Partnership in the United States District Court for the Western District of Texas, Austin Division.  In January 2017, Areli Arellano and Joe L. Martinez joined the lawsuit as additional plaintiffs.  The lawsuit alleges that the Company (but not Post Properties, Inc., or Post Properties) charged late fees at its Texas properties that violate Section 92.019 of the Texas Property Code, or Section 92.019, which provides that a landlord may not charge a tenant a late fee for failing to pay rent unless, among other things, the fee is a reasonable estimate of uncertain damages to the landlord that are incapable of precise calculation and result from the late payment of rent.  The plaintiffs are seeking monetary damages and attorneys' fees and costs.  In September 2018, the District Court certified a class proposed by the plaintiffs. Additionally, in September 2018, the District Court denied the Company’s motion for summary judgment and granted the plaintiffs’ motion for partial summary judgment.  Because the District Court certified a class prior to granting the plaintiffs’ motion for partial summary judgment, the District Court’s ruling applies to the entire class.  In October 2018, the Fifth Circuit Court of Appeals accepted the Company’s petition to review the District Court’s order granting class certification.  The Company also intends to appeal the District Court’s order granting plaintiff's motion for summary judgment to the Fifth Circuit Court of Appeals if permission to appeal is granted.  The Company will continue to vigorously defend the action and pursue such appeals.  Management estimates that the Company's maximum exposure in the lawsuit, given the class certification and summary judgment ruling, is $54.6 million, which includes both potential damages and attorneys' fees but excludes any prejudgment interest that may be awarded.

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In April 2017, plaintiff Nathaniel Brown, on behalf of a purported class of plaintiffs, filed a complaint against the Operating Partnership, as the successor by merger to Post Properties' primary operating partnership, and MAA in the United States District Court for the Western District of Texas, Austin Division.  The lawsuit alleges that Post Properties (and, following the Post Properties merger in December 2016, the Operating Partnership) charged late fees at its Texas properties that violate Section 92.019.  The plaintiffs are seeking monetary damages and attorney's fees and costs.  In September 2018, the District Court certified a class proposed by the plaintiff.  Additionally, in September 2018, the District Court denied the Company’s motion for summary judgment and granted the plaintiff’s motion for partial summary judgment. Because the District Court certified a class prior to granting the plaintiff’s motion for partial summary judgment, the District Court’s ruling applies to the entire class.  In October 2018, the Fifth Circuit Court of Appeals accepted the Company's petition to review the District Court's order granting class certification. The Company also intends to appeal the District Court’s order granting plaintiff’s motion for summary judgment to the Fifth Circuit Court of Appeals if permission to appeal is granted.  The Company will continue to vigorously defend the action and pursue such appeals.  Management estimates that the Company's maximum exposure in the lawsuit, given the class certification and summary judgment ruling, is $8.4 million, which includes both potential damages and attorneys' fees but excludes any prejudgment interest that may be awarded.

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 does not currently believe that such matters, either individually or in the aggregate, will have a material adverse effect on the Company's financial condition, results of operations or cash flows in the event of a negative outcome.

Loss Contingencies

The outcomes of claims, disputes and legal proceedings 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 also accrues an estimate of defense costs expected to be incurred in connection with legal matters.  Management 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, management does not accrue the loss. However, if the loss (or an additional loss in excess of the accrual) is at least a reasonable possibility and material, then management 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 a statement to that effect 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 involves a series of complex judgments about future events.  Among the factors considered in this assessment, 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, management's experience in similar matters, the facts available to management at the time of assessment, and how the Company intends to respond, or has responded, to the proceeding or claim.  Management's assessment of these factors may change over time as individual proceedings or claims progress.  For matters where management 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 ultimately expected to be resolved through negotiation and settlement have not reached the point where management believes a reasonable estimate of loss, or range of loss, can be made.  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.

As of June 30, 2019 and December 31, 2018, the Company's accrual for loss contingencies relating to unresolved legal matters was $8.6 million and $8.7 million in the aggregate, respectively.  The loss contingencies are presented in "Accrued expenses and other liabilities" in the accompanying Condensed Consolidated Balance Sheets.

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11.Segment Information

As of June 30, 2019, the Company owned and operated 303 multifamily apartment communities in 17 different states from which it derived all significant sources of earnings and operating cash flows.  The Company views each consolidated apartment community as an operating segment. The Company's chief operating decision maker, which is the Company’s Chief Executive Officer, evaluates performance and determines resource allocations of each of the apartment communities on a Same Store and Non-Same Store and Other basis, as well as an individual apartment community basis. This is consistent with the aggregation criteria under GAAP as each of the apartment communities generally has similar economic characteristics, facilities, services, and tenants. The following reflects the two reportable segments for the Company:

• Same Store communities are communities that the Company has owned and have been stabilized for at least a full 12 months.

• Non-Same Store and Other includes recent acquisitions, communities in development or lease-up, communities that have been identified for disposition and communities that have incurred a significant casualty loss.  Also included in Non-Same Store and Other are non-multifamily activities.

On the first day of each calendar year, the Company determines the composition of its Same Store and Non-Same Store and Other reportable segments for that year as well as adjusts the previous year, which allows the Company to evaluate full period-over-period operating comparisons.  Properties in development or lease-up are added to the Same Store portfolio on the first day of the calendar year after it has 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 the Same Store portfolio.

The chief operating decision maker utilizes net operating income, or NOI, in evaluating the performance of its operating 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.  Management believes that NOI is a helpful tool in evaluating the operating performance of the segments because it measures the core operations of property performance by excluding corporate level expenses and other items not related to property operating performance.

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Revenues and NOI for each reportable segment for the three and six months ended June 30, 2019 and 2018 were as follows (in thousands):

	Three months ended June 30,						Six months ended June 30,
	2019			2018			2019			2018
Revenues:
Same Store
Rental revenues	$	376,977		$	342,775		$	749,418		$	683,870
Reimbursable property revenues (1)		—			22,605			—			45,607
Other property revenues		3,632			3,349			6,731			6,223
Total Same Store revenues		380,609			368,729			756,149			735,700
Non-Same Store and Other
Rental revenues		26,602			20,400			52,101			38,345
Reimbursable property revenues (1)		—			591			—			1,276
Other property revenues		179			353			318			769
Total Non-Same Store and Other revenues		26,781			21,344			52,419			40,390
Total rental and other property revenues	$	407,390		$	390,073		$	808,568		$	776,090
Net Operating Income:
Same Store NOI	$	237,305		$	230,414		$	474,744		$	462,069
Non-Same Store and Other NOI		15,943			10,929			30,305			20,887
Total NOI		253,248			241,343			505,049			482,956
Depreciation and amortization		(123,944	)		(122,925	)		(246,733	)		(243,669	)
Property management expenses		(13,454	)		(11,396	)		(27,296	)		(24,276	)
General and administrative expenses		(10,598	)		(9,211	)		(23,751	)		(19,343	)
Merger and integration expenses		—			(2,826	)		—			(6,625	)
Interest expense		(45,936	)		(43,585	)		(91,636	)		(84,490	)
Gain (loss) on sale of depreciable real estate assets		—			2			(13	)		2
Gain on sale of non-depreciable real estate assets		297			2,761			9,260			2,911
Other non-operating income		4,775			8,032			5,710			5,691
Income tax expense		(682	)		(570	)		(1,323	)		(1,210	)
Income from real estate joint venture		435			356			832			854
Net income attributable to noncontrolling interests		(2,224	)		(2,174	)		(4,522	)		(3,975	)
Dividends to MAA Series I preferred shareholders		(922	)		(922	)		(1,844	)		(1,844	)
Net income available for MAA common shareholders	$	60,995		$	58,885		$	123,733		$	106,982

⁽¹⁾ As a result of the adoption of ASC Topic 842 referenced in Note 1, for the three months ended June 30, 2019, Same Store and Non-Same Store reimbursable property revenues of $23.1 million and $0.8 million, respectively, are reflected as rental revenues. For the six months ended June 30, 2019, Same Store and Non-Same Store reimbursable property revenues of $46.1 million and $1.6 million, respectively, are reflected as rental revenues.

Assets for each reportable segment as of June 30, 2019 and December 31, 2018 were as follows (in thousands):

	June 30, 2019		December 31, 2018
Assets:
Same Store	$	9,849,840	$	9,991,538
Non-Same Store and Other		1,233,089		1,163,083
Corporate assets		191,901		169,160
Total assets	$	11,274,830	$	11,323,781

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12.Real Estate Acquisitions and Dispositions

The following table reflects the Company's acquisition activity for the six months ended June 30, 2019:

Multifamily Acquisition (1)	Market	Units		Date Acquired
Novel Midtown	Phoenix, AZ		345	February 2019
Land Acquisition	Market	Acres		Date Acquired
North Orange Avenue - Outparcel	Orlando, FL		2	April 2019

⁽¹⁾ This pre-purchase multifamily community development is being developed through a joint venture with a local developer. The Company holds an 80.0% interest in the joint venture.

The following table reflects the Company's disposition activity for the six months ended June 30, 2019:

Land Disposition	Market	Acres		Date Sold
Peachtree Road - Outparcel	Atlanta, GA		1	February 2019
Colonial Promenade - Outparcel	Huntsville, AL		4	April 2019
Commercial Disposition	Market	Sq Ft		Date Sold
Poplar Avenue Office	Memphis, TN		42,000	March 2019

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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 96.5% interest as of June 30, 2019. MAA conducts all of its business through the Operating Partnership and its various subsidiaries. This discussion should be read in conjunction with the condensed consolidated financial statements included elsewhere in this Quarterly Report on Form 10-Q.

MAA, an S&P 500 company, is a multifamily focused, self-administered and self-managed real estate investment trust, or REIT. We own, operate, acquire and selectively develop apartment communities primarily located in the Southeast, Southwest and Mid-Atlantic regions of the United States.  As of June 30, 2019, we owned and operated 303 apartment communities through the Operating Partnership and its subsidiaries, we had an ownership interest in one apartment community through an unconsolidated real estate joint venture, and we had five development communities under construction.  In addition, as of June 30, 2019, we owned four commercial properties, and 30 of our apartment communities included retail components.  Our apartment communities and commercial properties are located across 17 states and the District of Columbia.

We report in two segments, Same Store communities and Non-Same Store and Other. Our Same Store segment represents those communities that have been owned and stabilized for at least 12 months as of the first day of the calendar year. Our Non-Same Store and Other segment includes recently acquired communities, communities being developed or in lease-up, communities undergoing extensive renovations, communities identified for disposition, and communities that have incurred a significant casualty loss. Also included in our Non-Same Store and Other segment are non-multifamily activities.  Additional information regarding the composition of our segments is included in Note 11 to the condensed consolidated financial statements included elsewhere in this Quarterly Report on Form 10-Q.

Risks 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, or the Securities Act, and Section 21E of the Securities Exchange Act of 1934, as amended, or the Exchange Act, with respect to our expectations for future periods.  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 forecasted operating performance and results, 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.  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 forward-looking statements involve known and unknown risks, uncertainties and other factors, as described below, which may cause our 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.  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 Quarterly Report on Form 10-Q 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 actual results, performance or achievements to differ materially from those expressed or implied 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 and sector;

• adverse changes in real estate markets, including, but not limited to, the extent of future demand for multifamily units in our significant 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, to lease-up as anticipated or to achieve anticipated results;

• 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;

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• loss of hedge accounting treatment for interest rate swaps;

• the continuation of the good credit of our interest rate swap 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;

• the effect of the phase-out of the London Interbank Offered Rate, or LIBOR, as a variable rate debt benchmark by the end of 2021 and the transition to a different benchmark interest rate could have adverse effects on our interest expense and our cash flow for general corporate requirements;

• 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;

• cyber liability or potential liability for breaches of our privacy or information security systems;

• potential liability for environmental contamination;

• adverse legislative or regulatory tax changes;

• legal proceedings relating to various issues, which, among other things, could result in a class action lawsuit;

• 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.

New factors may also emerge from time to time that could have a material adverse effect on our business. Except as required by law, we undertake no obligation to publicly update or revise forward-looking statements contained in this Quarterly Report on Form 10-Q to reflect events, circumstances or changes in expectations after the date on which this Quarterly Report on Form 10-Q is filed.

Overview of the Three Months Ended June 30, 2019

For the three months ended June 30, 2019, net income available for MAA common shareholders was $61.0 million compared to $58.9 million for the three months ended June 30, 2018.  Results for the three months ended June 30, 2019 included $4.6 million of income related to the fair value adjustment of the embedded derivative related to the MAA Series I preferred stock.  Results for the three months ended June 30, 2018 included $4.4 million of income related to an executive life insurance policy settlement as well as $2.8 million of income related to the adjustment of the embedded derivative. Revenues for the three months ended June 30, 2019 increased 4.4% compared to the three months ended June 30, 2018, primarily driven by a 3.2% increase in our Same Store segment and a 25.5% increase in our Non-Same Store and Other segment. Property operating expenses, excluding depreciation and amortization, for the three months ended June 30, 2019 increased 3.6% compared to the three months ended June 30, 2018, due to a 3.6% increase in our Same Store segment and a 4.1% increase in our Non-Same Store and Other segment. The drivers of these increases are discussed below in the "Results of Operations" section.

Trends

During the three months ended June 30, 2019, demand for apartments continued to be relatively strong, as it was during the three months ended June 30, 2018.  Average daily physical occupancy for our Same Store segment was 96.0% for the three months ended June 30, 2019, consistent with the average daily physical occupancy for the three months ended June 30, 2018.  Importantly, average effective rent per unit for the Same Store portfolio continued to increase, up 3.2% for the three months ended June 30, 2019 as compared to the three months ended June 30, 2018.

An important part of our portfolio strategy is to maintain diversity of markets, submarkets, product types and price points in the Southeast, Southwest and Mid-Atlantic regions of the United States. This diversity tends to mitigate exposure to economic issues in any one geographic market or area. We believe that a well-balanced portfolio, including inner loop, suburban and downtown/central business district locations, with various monthly rent price points, will perform well in “up” cycles as well as weather “down” cycles better. Through our investment in 38 defined metropolitan statistical areas, we are diversified across markets, urban and suburban submarkets, and a variety of product types and monthly rent pricing points.

Though overall demand continues to be strong, the current elevated supply levels are impacting rent growth for our portfolio, particularly for apartment communities located in urban submarkets.  Properties in suburban submarkets have been impacted somewhat less by supply, primarily because less new development has occurred in those submarkets.  Multifamily permitting is typically a leading indicator of future supply levels. While multifamily permitting across our markets was down in 2017 as compared to 2016, multifamily permitting across our markets in 2018 was up as compared to 2017. Through the six months ended June 30, 2019, multifamily permitting in our market is similar to the level seen in the six months ended June 30, 2018. It is difficult to project supply levels based on this data because not all permitted projects are ultimately built.  However, given the current supply level and the recent permitting data, we believe it is possible that supply in some of our markets could remain elevated over the next couple of years.

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Demand for our apartments is primarily driven by general economic conditions in our markets. In particular, job growth relative to new supply is a critical factor in our ability to maintain occupancy and increase rents. To the extent that economic conditions continue to support increased job growth, we believe that we may be able to maintain solid occupancy and more effectively increase rents. We also believe that more disciplined credit terms for residential mortgages should continue to favor rental demand at existing multifamily apartment communities. Furthermore, rental competition from single family homes has not historically been a major competitive factor impacting our portfolio. We have seen significant rental competition from single family homes in only a few of our submarkets. For the three months ended June 30, 2019, total move outs attributable to single family home rentals for our combined portfolio represented about 6% of total move outs, down from 7% in the three months ended June 30, 2018. Long term, we expect demographic trends (including the growth of prime age groups for rentals and immigration and population movement to the Southeast, Southwest and Mid-Atlantic regions) will continue to support apartment rental demand in our markets.

Changing interest rates may have a significant impact on our business and results of operations.  As of June 30, 2019, we had approximately $4.5 billion of debt, of which 15% had variable rate interest and 85% had fixed or hedged interest rates. To the extent interest rates rise, our net interest expense on variable rate debt will increase as potentially will our net interest expense on any debt refinancing. The opposite is true should interest rates decrease.  Given the short-term nature of our leases, to the extent interest rates rise due to general economic growth, we would expect increases in interest expense to be somewhat offset by positive leasing trends.

Our focus is on maintaining strong physical occupancy while increasing pricing where possible through our revenue management system.  As noted above, average daily physical occupancy for the three months ended June 30, 2019 was 96.0%.  As we move into the second half of the year, we believe that the current level of physical occupancy and continued strong job growth in our markets position us well for the remainder of 2019 and sets us up to achieve improved pricing growth over what was achieved in the same period in 2018.

Results of Operations

Comparison of the three months ended June 30, 2019 to the three months ended June 30, 2018

For the three months ended June 30, 2019, we achieved net income available for MAA common shareholders of $61.0 million, a 3.6% increase compared to the three months ended June 30, 2018, and total revenue growth of $17.3 million, representing a 4.4% increase in property revenues compared to the three months ended June 30, 2018.  The following discussion describes the primary drivers of the increase in net income available for MAA common shareholders for the three months ended June 30, 2019 as compared to the three months ended June 30, 2018.

Property Revenues

The following table reflects our property revenues by segment for the three months ended June 30, 2019 and 2018 (dollars in thousands):

	Three months ended June 30,
	2019		2018		Increase		Percentage Increase
Same Store	$	380,609	$	368,729	$	11,880		3.2	%
Non-Same Store and Other		26,781		21,344		5,437		25.5	%
Total	$	407,390	$	390,073	$	17,317		4.4	%

The increase in property revenues from our Same Store segment as compared to the three months ended June 30, 2018 was the primary driver in total property revenue growth.  The Same Store segment generated a 3.2% increase in revenues for the three months ended June 30, 2019, primarily a result of average effective rent per unit growth of 3.2% compared to the three months ended June 30, 2018.  The increase in property revenues from our Non-Same Store and Other segment for the three months ended June 30, 2019 as compared to three months ended June 30, 2018 was primarily the result of continued lease-up of recent development communities.

Property Operating Expenses

Property operating expenses include costs for property personnel, building repairs and maintenance, real estate taxes and insurance, utilities, landscaping and other operating expenses.  The following table reflects our property operating expenses by segment for the three months ended June 30, 2019 and 2018 (dollars in thousands):

	Three months ended June 30,
	2019		2018		Increase		Percentage Increase
Same Store	$	143,304	$	138,315	$	4,989		3.6	%
Non-Same Store and Other		10,838		10,415		423		4.1	%
Total	$	154,142	$	148,730	$	5,412		3.6	%

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The increase in property operating expenses from our Same Store segment for the three months ended June 30, 2019 as compared to the three months ended June 30, 2018 was primarily driven by increases in real estate tax expense of $2.3 million and personnel expenses of $1.4 million.

Depreciation and Amortization

Depreciation and amortization expense for the three months ended June 30, 2019 was $123.9 million, an increase of $1.0 million compared to the three months ended June 30, 2018.  The increase was primarily driven by the recognition of depreciation expense associated with our development and redevelopment activities made after June 30, 2018 in the normal course of business through June 30, 2019.

Other Income and Expenses

Property management expenses for the three months ended June 30, 2019 were $13.5 million, an increase of $2.1 million as compared to the three months ended June 30, 2018.  The increase was primarily due to increases in personnel and technology costs.  General and administrative expenses for the three months ended June 30, 2019 were $10.6 million, an increase of $1.4 million as compared to the three months ended June 30, 2018, primarily due to increases in personnel costs.  No merger and integration expenses were incurred during the three months ended June 30, 2019, which represented a decrease of $2.8 million as compared to the three months ended June 30, 2018, primarily due to completion of integration activities related to the merger with Post Properties by the end of 2018.

Interest expense for the three months ended June 30, 2019 was $45.9 million, an increase of $2.4 million as compared to the three months ended June 30, 2018.  The increase was primarily driven by an increase of approximately 18 basis points in our effective interest rate during the three months ended June 30, 2019 compared to the same period in the prior year.  The increase in the effective interest rate was primarily due to the recent maturity of debt assumed in previous acquisitions.  The debt was adjusted to its fair value at closing, and the fair value adjustments were amortized to interest expense over the remaining term of the debt.

Gain on sale of non-depreciable assets for the three months ended June 30, 2019 was $0.3 million, a decrease of $2.5 million as compared to the three months ended June 30, 2018. Although quarterly land disposition volume remained consistent year-over-year, the gain on sale of non-depreciable assets decreased primarily due to the nature of the real estate assets sold.

Other non-operating income for the three months ended June 30, 2019 was $4.8 million, a decrease of approximately $3.3 million as compared to the three months ended June 30, 2018.  The decrease was primarily due to the recognition of $4.6 million of income from the fair value adjustment of the embedded derivative related to the MAA Series I preferred stock during the three months ended June 30, 2019, as compared to the recognition of $4.4 million of income related to the settlement of an executive life insurance policy as well as $2.8 million of income from the adjustment of the embedded derivative during the three months ended June 30, 2018.

Comparison of the six months ended June 30, 2019 to the six months ended June 30, 2018

For the six months ended June 30, 2019, we achieved net income available for MAA common shareholders of $123.7 million, a 15.7% increase compared to the six months ended June 30, 2018, and total revenue growth of $32.5 million, representing a 4.2% increase in property revenues compared to the six months ended June 30, 2018.  The following discussion describes the primary drivers of the increase in net income available for MAA common shareholders for the six months ended June 30, 2019 as compared to the six months ended June 30, 2018.

Property Revenues

The following table reflects our property revenues by segment for the six months ended June 30, 2019 and 2018 (dollars in thousands):

	Six months ended June 30,
	2019		2018		Increase		Percentage Increase
Same Store	$	756,149	$	735,700	$	20,449		2.8	%
Non-Same Store and Other		52,419		40,390		12,029		29.8	%
Total	$	808,568	$	776,090	$	32,478		4.2	%

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The increase in property revenues from our Same Store segment as compared to the six months ended June 30, 2018 was the primary driver in total property revenue growth.  The Same Store segment generated a 2.8% increase in revenues for the six months ended June 30, 2019, primarily a result of average effective rent per unit growth of 3.1% offset by a slight decrease in occupancy as compared to the six months ended June 30, 2018.  The increase in property revenues from our Non-Same Store and Other segment for the six months ended June 30, 2019 as compared to six months ended June 30, 2018 was primarily the result of continued lease-up of recent development communities.

Property Operating Expenses

Property operating expenses include costs for property personnel, building repairs and maintenance, real estate taxes and insurance, utilities, landscaping and other operating expenses.  The following table reflects our property operating expenses by segment for the six months ended June 30, 2019 and 2018 (dollars in thousands):

	Six months ended June 30,
	2019		2018		Increase		Percentage Increase
Same Store	$	281,405	$	273,631	$	7,774		2.8	%
Non-Same Store and Other		22,114		19,503		2,611		13.4	%
Total	$	303,519	$	293,134	$	10,385		3.5	%

The increase in property operating expenses from our Same Store segment for the six months ended June 30, 2019 as compared to the six months ended June 30, 2018 was primarily driven by increases in real estate tax expense of $5.2 million. The increase in property operating expenses from our Non-Same Store and Other segment for the six months ended June 30, 2019 as compared to the six months ended June 30, 2018 was primarily the result of increases in real estate tax expense and personnel expenses, primarily due to the recent completion of apartment communities previously in our development pipeline.

Depreciation and Amortization

Depreciation and amortization expense for the six months ended June 30, 2019 was $246.7 million, an increase of $3.1 million compared to the six months ended June 30, 2018.  The increase was primarily driven by the recognition of depreciation expense associated with our development and redevelopment activities made after June 30, 2018 in the normal course of business through June 30, 2019.

Other Income and Expenses

Property management expenses for the six months ended June 30, 2019 were $27.3 million, an increase of $3.0 million as compared to the six months ended June 30, 2018.  The increase was primarily due to increases in personnel and technology costs.  General and administrative expenses for the six months ended June 30, 2019 were $23.8 million, an increase of $4.4 million as compared to the six months ended June 30, 2018, primarily due to increases in personnel costs.  No merger and integration expenses were incurred during the six months ended June 30, 2019, which represented a decrease of $6.6 million as compared to the six months ended June 30, 2018, primarily due to completion of integration activities related to the merger with Post Properties by the end of 2018.

Interest expense for the six months ended June 30, 2019 was $91.6 million, an increase of $7.1 million as compared to the six months ended June 30, 2018.  The increase was primarily driven by an increase of approximately 18 basis points in our effective interest rate during the six months ended June 30, 2019 compared to the same period in the prior year.  The increase in the effective interest rate was primarily due to the recent maturity of debt assumed in previous acquisitions.  The debt was adjusted to its fair value at closing, and the fair value adjustments were amortized to interest expense over the remaining term of the debt.

Gain on sale of non-depreciable assets for the six months ended June 30, 2019 was $9.3 million, an increase of $6.3 million as compared to the six months ended June 30, 2018.  Although annual land disposition volume decreased year-over-year, the gain on sale of non-depreciable assets increased primarily due to the nature of the real estate assets sold.

Other non-operating income for the six months ended June 30, 2019 was $5.7 million, consistent with the six months ended June 30, 2018.

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Funds from Operations

Funds from operations, or FFO, a non-GAAP financial measure, represent net income available for MAA common shareholders (calculated in accordance with the United States generally accepted accounting principles, or GAAP) excluding gains or losses on disposition of operating properties and asset impairment, plus depreciation and amortization of real estate assets, net income attributable to noncontrolling interests, and adjustments for joint ventures. Because noncontrolling interest is added back, FFO, when used in this Quarterly Report on Form 10-Q, represents FFO attributable to the Company.

FFO should not be considered as an alternative to net income or any other GAAP measurement, as an indicator of operating performance or as an alternative to cash flow from operating, investing, and financing activities as a measure of liquidity. Management believes that FFO is helpful to investors in understanding our operating performance primarily 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. While our calculation of FFO is in accordance with the National Association of Real Estate Trust, or NAREIT, definition, it may differ from the methodology for calculating FFO utilized by other REITs and, accordingly, may not be comparable to such other REITs.

The following table presents a reconciliation of net income available for MAA common shareholders to FFO for the three and six months ended June 30, 2019 and 2018, as we believe net income available for MAA common shareholders is the most directly comparable GAAP measure (dollars in thousands):

	Three months ended June 30,					Six months ended June 30,
	2019		2018			2019		2018
Net income available for MAA common shareholders	$	60,995	$	58,885		$	123,733	$	106,982
Depreciation and amortization of real estate assets		122,323		121,745			243,533		241,311
(Gain) loss on sale of depreciable real estate assets		—		(2	)		13		(2	)
Depreciation and amortization of real estate assets    of real estate joint venture		166		144			311		289
Net income attributable to noncontrolling interests		2,224		2,174			4,522		3,975
Funds from operations attributable to the Company	$	185,708	$	182,946		$	372,112	$	352,555

FFO for the three months ended June 30, 2019 was $185.7 million, an increase of $2.8 million as compared to the three months ended June 30, 2018, primarily as a result of an increase in property revenues of $17.3 million in addition to a decrease in merger and integration expenses of $2.8 million. The increases to FFO were offset by the increases in interest expense of $2.4 million, property operating expenses, excluding depreciation and amortization, of $5.4 million, property management expenses of $2.1 million and general and administrative expenses of $1.4 million, in addition to decreases in other non-operating income of $3.3 million and gain on sale of non-depreciable assets of $2.5 million.

FFO for the six months ended June 30, 2019 was $372.1 million, an increase of $19.6 million as compared to the six months ended June 30, 2018, primarily as a result of increases in property revenues of $32.5 million and gain on sale of non-depreciable assets of $6.3 million, in addition to a decrease in merger and integration expenses of $6.6 million.  The increases to FFO were offset by increases in interest expense of $7.1 million, property operating expenses, excluding depreciation and amortization, of $10.4 million, property management expense of $3.0 million and general and administrative expenses of $4.4 million.  

Liquidity and Capital Resources

Our cash flows from operating, investing and financing activities, as well as general economic and market conditions, are the principal factors affecting our liquidity and capital resources.

Operating Activities

Net cash provided by operating activities was $368.5 million for the six months ended June 30, 2019 as compared to $364.0 million for the six months ended June 30, 2018.  The increase in operating cash flows was primarily driven by our operating performance, partially offset by the timing of cash payments.

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Investing Activities

Net cash used in investing activities was $140.8 million for the six months ended June 30, 2019 as compared to $221.4 million for the six months ended June 30, 2018.  The primary drivers of the change were as follows (dollars in thousands):

	Primary drivers of cash (outflow)						Increase
	during the six months ended June 30,						(Decrease)
	2019			2018			in Net Cash
Purchases of real estate and other assets	$	(19,596	)	$	(110,430	)	$	90,834
Capital improvements, development and other		(133,354	)		(126,333	)		(7,021	)

The decrease in cash outflows for purchases of real estate and other assets was primarily driven by the acquisition activity for the six months ended June 30, 2019 as compared to the six months ended June 30, 2018.  The increase in cash outflows for capital improvements, development and other was driven by increased recurring, redevelopment and revenue enhancing capital spend during the six months ended June 30, 2019 as compared to the six months ended June 30, 2018.

Financing Activities

Net cash used in financing activities was $221.6 million for the six months ended June 30, 2019 as compared to $170.7 million for the six months ended June 30, 2018.  The primary drivers of the change were as follows (dollars in thousands):

	Primary drivers of cash (outflow) inflow						(Decrease)
	during the six months ended June 30,						Increase
	2019			2018			in Net Cash
Net change in credit lines	$	(540,000	)	$	(300,000	)	$	(240,000	)
Net change in commercial paper		367,000			—			367,000
Proceeds from notes payable		490,435			397,612			92,823
Principal payments on notes payable		(303,672	)		(43,622	)		(260,050	)
Dividends paid on common shares		(218,758	)		(209,843	)		(8,915	)

The increase in cash outflows related to the net change in credit lines resulted from the decrease in net borrowings of $540.0 million on our unsecured revolving credit facility during the six months ended June 30, 2019, as compared to the decrease in net borrowings of $300.0 million on the unsecured revolving credit facility during the six months ended June 30, 2018.  The increase in cash inflows related to the net change in commercial paper resulted from the initiation of an unsecured commercial paper program during the six months ended June 30, 2019; there was no commercial paper program in place during the six months ended June 30, 2018. The increase in cash inflows from proceeds from notes payable primarily resulted from the issuance of $300.0 million of senior unsecured notes and $191.3 million of secured property mortgages during the six months ended June 30, 2019, as compared to the issuance of $400.0 million of senior unsecured notes during the six months ended June 30, 2018.  The increase in cash outflows from principal payments on notes payable primarily resulted from the retirement of the $300.0 million unsecured term loan with Wells Fargo during the six months ended June 30, 2019, as compared to the retirement of $38.3 million of secured property mortgages during the six months ended June 30, 2018. The increase in cash outflows from dividends paid on common shares primarily resulted from the increase in the dividend rate to $1.9200 per share during the six months ended June 30, 2019, as compared to the dividend rate of $1.8450 per share during the six months ended June 30, 2018.

Equity

As of June 30, 2019, MAA owned 114,043,089 OP Units, comprising a 96.5% limited partnership interest in MAALP, while the remaining 4,090,083 outstanding OP Units were held by limited partners of MAALP other than MAA and its subsidiaries.  Holders of OP Units (other than MAA and its subsidiaries) may require us to redeem their OP Units from time to time, in which case MAA may, at its option, pay the redemption price either in cash (in an amount per OP Unit equal, in general, to the average closing price of MAA's common stock on the NYSE over a specified period prior to the redemption date) or by delivering one share of MAA's common stock (subject to adjustment under specified circumstances) for each OP Unit so redeemed.  In addition, MAA has registered under the Securities Act the 4,090,083 shares of its common stock that, as of June 30, 2019, were issuable upon redemption of OP Units, in order for those shares to be sold freely in the public markets.

For more information regarding our equity capital resources, see Note 8 and Note 9 to the condensed consolidated financial statements included elsewhere in this Quarterly Report on Form 10-Q.

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Debt

The following schedule reflects our variable and fixed rate debt, including the impact of interest rate swaps, outstanding as of June 30, 2019 (dollars in thousands):

	Principal Balance			Average Years to Rate Maturity		Effective Rate
Unsecured debt
Fixed rate or swapped	$	3,242,000			5.9		3.9	%
Variable rate		667,000			0.1		3.0	%
Debt issuance costs, discounts, and fair market value adjustments		(29,474	)
Total unsecured rate maturity	$	3,879,526			4.9		3.8	%
Secured debt
Conventional - fixed rate	$	663,764			16.9		4.5	%
Debt issuance costs and fair market value adjustments		(3,301	)
Total secured rate maturity	$	660,463			16.9		4.5	%
Total debt	$	4,539,989			6.7		3.8	%
Total fixed or hedged debt	$	3,873,304			7.7		4.0	%

As of June 30, 2019, we had entered into interest rate swaps totaling a notional amount of $300.0 million related to issued debt. To date, we believe the interest rate swaps have proven to be highly effective hedges.

The following schedule presents the contractual maturity dates of our outstanding debt, net of fair market value adjustments, debt issuance costs and discounts, as of June 30, 2019 (dollars in thousands):

	Revolving Credit Facility & Comm. Paper ⁽¹⁾ ⁽²⁾		Public Bonds		Other Unsecured		Secured		Total
2019	$	367,000	$	—	$	19,993	$	13,262	$	400,255
2020		—		—		149,937		157,049		306,986
2021		—		—		222,395		121,862		344,257
2022		—		248,710		416,214		—		664,924
2023		—		347,158		12,221		—		359,379
Thereafter		—		2,075,953		19,945		368,290		2,464,188
Total	$	367,000	$	2,671,821	$	840,705	$	660,463	$	4,539,989

⁽¹⁾ The $367.0 million maturing in 2019 reflects the principal outstanding on MAALP’s unsecured commercial paper program as of June 30, 2019.  

⁽²⁾ There are no borrowings outstanding on MAALP’s $1.0 billion unsecured revolving credit facility as of June 30, 2019.  The unsecured revolving credit facility has a maturity date of May 2023 plus two six-month extensions.

The following schedule reflects the interest rate maturities of our outstanding fixed or hedged debt, net of fair market value adjustments, debt issuance costs and discounts, as of June 30, 2019 (dollars in thousands):

	Fixed Rate Debt		Hedged Debt		Total Fixed Rate Balances		Effective Rate
2019	$	33,255	$	—	$	33,255		3.7	%
2020		157,049		299,455		456,504		3.0	%
2021		194,509		—		194,509		5.2	%
2022		365,469		—		365,469		3.6	%
2023		359,379		—		359,379		4.2	%
Thereafter		2,464,188		—		2,464,188		4.1	%
Total	$	3,573,849	$	299,455	$	3,873,304		4.0	%

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Unsecured Revolving Credit Facility & Commercial Paper

In May 2019, MAALP closed on a $1.0 billion unsecured revolving credit facility with a syndicate of banks led by Wells Fargo Bank, National Association, or Wells Fargo, and fifteen other banks, which we refer to as the Credit Facility.  The Credit Facility replaced the previous credit facility and includes an expansion option up to $1.5 billion.  The Credit Facility bears an interest rate of LIBOR, plus a spread of 0.75% to 1.45% based on an investment grade pricing grid.  The Credit Facility matures in May 2023 with an option to extend for two additional six-month periods.  As of June 30, 2019, MAALP had no balance outstanding under the Credit Facility, while $2.5 million of capacity was being used to support outstanding letters of credit.

During May 2019, MAALP established an unsecured commercial paper program, whereby the Company can issue unsecured commercial paper notes with varying maturities not to exceed 397 days up to a maximum aggregate amount outstanding of $500.0 million. As of June 30, 2019, the Company had $367.0 million outstanding under the commercial paper program. The commercial paper program along with the Credit Facility serve as our primary sources of short-term liquidity.

Senior Unsecured Notes

We have issued both public and private senior unsecured notes.  As of June 30, 2019, we had approximately $2.7 billion (face value) of publicly issued senior unsecured notes and $242.0 million of senior unsecured notes issued in two private placements.  In October 2013, we publicly issued $350.0 million of senior unsecured notes due October 2023 with a coupon of 4.30%, paid semi-annually on April 15 and October 15. In June 2014, we publicly issued $400.0 million of senior unsecured notes due June 2024 with a coupon of 3.75%, paid semi-annually on June 15 and December 15. In November 2015, we publicly issued $400.0 million of senior unsecured notes due November 2025 with a coupon of 4.00%, paid semi-annually on May 15 and November 15.  As a result of the merger with Post Properties in December 2016, we assumed $250.0 million of senior unsecured notes due December 2022 with a coupon of 3.38%, paid semi-annually on June 1 and December 1.  In May 2017, we publicly issued $600.0 million of senior unsecured notes due June 2027 with a coupon of 3.60%, paid semi-annually on June 1 and December 1. In May 2018, we publicly issued $400.0 million of senior unsecured notes due June 2028 with a coupon of 4.20%, paid semi-annually on June 15 and December 15.  In March 2019, we publicly issued $300.0 million of senior unsecured notes due March 2029 with a coupon of 3.950%, paid semi-annually on March 15 and September 15.  The proceeds from the senior unsecured notes issued in March 2019 were used to pay down outstanding amounts under the Credit Facility.  As of June 30, 2019, all of these amounts remained outstanding.

In July 2011, we issued $135.0 million of senior unsecured notes. The notes were offered and sold in a private placement with three maturity tranches: $50.0 million at 4.7% maturing in July 2018; $72.8 million at 5.4% maturing in July 2021; and $12.3 million at 5.6% maturing in July 2023. The $50.0 million tranche was paid off on its maturity date. In August 2012, we issued $175.0 million of senior unsecured notes. The notes were offered and sold in a private placement with four tranches: $18.0 million at 3.15% maturing in November 2017; $20.0 million at 3.61% maturing in November 2019; $117.0 million at 4.17% maturing in November 2022; and $20.0 million at 4.33% maturing in November 2024. The $18.0 million tranche was paid off on its maturity date. The remaining tranches were outstanding as of June 30, 2019.

Unsecured Term Loans

In addition to the Credit Facility and senior unsecured notes, we maintain three unsecured term loans.  We had total borrowings of $600.0 million outstanding under these term loan agreements as of June 30, 2019, comprised of:

A $300.0 million term loan with Wells Fargo that bears interest at a rate of LIBOR plus a spread of 0.90% to 1.75% based on the credit ratings of our unsecured debt. The loan matures in March 2022.  As of June 30, 2019, this loan was bearing interest at a rate of one month LIBOR plus 0.95%.

A $150.0 million term loan with U.S. Bank National Association that 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. The loan matures in March 2020.  As of June 30, 2019, this loan was bearing interest at a rate of one month LIBOR plus 0.98%.

A $150.0 million term loan with KeyBank National Association that bears interest at a rate of LIBOR plus a spread of 0.90% to 1.75% based on the credit ratings of our unsecured debt.  The loan matures in February 2021.  As of June 30, 2019, this loan was bearing interest at a rate of one month LIBOR plus 0.95%.

In May 2019, MAALP retired the Wells Fargo $300.0 million term loan due in June 2019.

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Secured Property Mortgages

We maintain secured property mortgages with Fannie Mae, Freddie Mac and various life insurance companies.  These mortgages are usually fixed rate and can range from five to 30 years in maturity.  As of June 30, 2019, we had $663.8 million of secured property mortgages. In February 2019, we issued $191.3 million in secured property mortgages with a fixed rate of 4.43%.

For more information regarding our debt capital resources, see Note 6 to the condensed consolidated financial statements included elsewhere in this Quarterly Report on Form 10-Q.

Off-Balance Sheet Arrangements

As of June 30, 2019 and 2018, we had a 35.0% ownership interest in a limited liability company, which owns one apartment community comprised of 269 units, located in Washington, D.C.  We also had a 20.7% ownership interest in a limited partnership as of June 30, 2019. Our interests in these investments are unconsolidated and are recorded using the equity method as we do not have a controlling interest.

As of June 30, 2019 and 2018, we did not have any relationships, including those with unconsolidated entities or financial partnerships, for the purpose of facilitating off-balance sheet arrangements or other contractually narrow or limited purposes.  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 Note 13 to the consolidated financial statements included in our Annual Report on Form 10-K for the year ended December 31, 2018, filed with the SEC on February 21, 2019.

Insurance

We carry comprehensive general liability coverage on our apartment communities, with limits of liability we believe are customary within the multifamily apartment industry, to insure against liability claims and related defense costs. We also maintain insurance against the risk of direct physical damage to reimburse us on a replacement cost basis for costs incurred to repair or rebuild any property, including loss of rental income during the reconstruction period.

We renegotiated our insurance programs effective July 1, 2019. We believe that the current 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 operations.

Inflation

Our resident leases at our apartment communities allow, at the time of renewal, for adjustments in the rent payable thereunder, and thus may enable us to seek rent increases.  The majority of our 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.

Critical Accounting Policies and Estimates

Please refer to our Annual Report on Form 10-K for the year ended December 31, 2018, filed with the SEC on February 21, 2019 for discussions of our critical accounting policies.  During the six months ended June 30, 2019, there were no material changes to these policies.  For more information on recent accounting pronouncements that could have a material impact on our condensed consolidated financial statements see Note 1 to the condensed consolidated financial statements included elsewhere in this Quarterly Report on Form 10-Q.

39

Item 3.Quantitative and Qualitative Disclosures About Market Risk.

Market risk includes risks that arise from changes in interest rates, foreign currency exchange rates, commodity prices, equity prices and other market changes that affect market sensitive instruments. Our primary market risk exposure is to changes in interest rates on our borrowings. As of June 30, 2019, 24.6% of our total capitalization consisted of borrowings. Our interest rate risk objective is to limit the impact of interest rate fluctuations on earnings and cash flows and to lower our overall borrowing costs. To achieve this objective, we manage our exposure to fluctuations in market interest rates for borrowings through the use of fixed rate debt instruments and interest rate swaps, which mitigate our interest rate risk on a related financial instrument and effectively fix the interest rate on a portion of our variable debt or on future refinancings. We use our best efforts to have our debt instruments mature across multiple years, which we believe limits our exposure to interest rate changes in any one year. We do not enter into derivative instruments for trading or other speculative purposes.  As of June 30, 2019, approximately 85.3% of our outstanding debt was subject to fixed rates after considering related derivative instruments.  We regularly review interest rate exposure on outstanding borrowings in an effort to minimize the risk of interest rate fluctuations.  There have been no material changes in our market risk as disclosed in our Annual Report on Form 10-K for the year ended December 31, 2018, filed with the SEC on February 21, 2019.

Item 4.Controls and Procedures.

Mid-America Apartment Communities, Inc.

(a) Evaluation of Disclosure Controls and Procedures

MAA is required to maintain disclosure controls and procedures, within the meaning of Exchange Act Rules 13a-15 and 15d-15.  MAA's management, with the participation of MAA’s Chief Executive Officer and Chief Financial Officer, carried out an evaluation of the effectiveness of MAA's disclosure controls and procedures as of June 30, 2019.  Based on that evaluation, MAA's Chief Executive Officer and Chief Financial Officer concluded that the disclosure controls and procedures were effective as of June 30, 2019 to ensure that information required to be disclosed by MAA in its Exchange Act filings is accurately recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms and is accumulated and communicated to MAA's management, including the Chief Executive Officer and Chief Financial Officer, as appropriate to allow timely decisions regarding required disclosure.

(b) Changes in Internal Control over Financial Reporting

There was no change to MAA's internal control over financial reporting, within the meaning of Exchange Act Rules 13a-15 and 15d-15, that occurred during the quarter ended June 30, 2019 that has materially affected, or is reasonably likely to materially affect, MAA's internal control over financial reporting.

Mid-America Apartments, L.P.

(a) Evaluation of Disclosure Controls and Procedures

The Operating Partnership is required to maintain disclosure controls and procedures, within the meaning of Exchange Act Rules 13a-15 and 15d-15. Management of the Operating Partnership, with the participation of the Chief Executive Officer and Chief Financial Officer of MAA, as the general partner of the Operating Partnership, carried out an evaluation of the effectiveness of the Operating Partnership's disclosure controls and procedures as of June 30, 2019.  Based on that evaluation, the Chief Executive Officer and Chief Financial Officer of MAA, as the general partner of the Operating Partnership, concluded that the disclosure controls and procedures were effective as of June 30, 2019 to ensure that information required to be disclosed by the Operating Partnership in its Exchange Act filings is accurately recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms and is accumulated and communicated to the Operating Partnership’s management, including the Chief Executive Officer and Chief Financial Officer of MAA, as the general partner of the Operating Partnership, as appropriate to allow timely decisions regarding required disclosure.

(b) Changes in Internal Control over Financial Reporting

There was no change to the Operating Partnership’s internal control over financial reporting, within the meaning of Exchange Act Rules 13a-15 and 15d-15, that occurred during the quarter ended June 30, 2019 that has materially affected, or is reasonably likely to materially affect, the Operating Partnership’s internal control over financial reporting.

40

PART II – OTHER INFORMATION

Item 1. Legal Proceedings.

In June 2016, plaintiffs Cathi Cleven and Tara Cleven, on behalf of a purported class of plaintiffs, filed a complaint against MAA and the Operating Partnership in the United States District Court for the Western District of Texas, Austin Division. In January 2017, Areli Arellano and Joe L. Martinez joined the lawsuit as additional plaintiffs. The lawsuit alleges that we (but not Post Properties) charged late fees at our Texas properties that violate Section 92.019 of the Texas Property Code, or Section 92.019, which provides that a landlord may not charge a tenant a late fee for failing to pay rent unless, among other things, the fee is a reasonable estimate of uncertain damages to the landlord that are incapable of precise calculation and result from the late payment of rent.  The plaintiffs are seeking monetary damages and attorneys' fees and costs. In September 2018, the District Court certified a class proposed by the plaintiffs.  Additionally, in September 2018, the District Court denied our motion for summary judgment and granted the plaintiffs’ motion for partial summary judgment. Because the District Court certified a class prior to granting the plaintiffs’ motion for partial summary judgment, the District Court’s ruling applies to the entire class. In October 2018, the Fifth Circuit Court of Appeals accepted our petition to review the District Court’s order granting class certification.  We intend to appeal the District Court’s order granting plaintiff’s motion for summary judgment to the Fifth Circuit Court of Appeals if permission to appeal is granted. We will continue to vigorously defend the action and pursue such appeals.

In April 2017, plaintiff Nathaniel Brown, on behalf of a purported class of plaintiffs, filed a complaint against the Operating Partnership, as the successor by merger to Post Properties' primary operating partnership, and MAA in the United States District Court for the Western District of Texas, Austin Division. The lawsuit alleges that Post Properties, Inc. (and, following the Post Properties merger in December 2016, the Operating Partnership) charged late fees at its Texas properties that violate Section 92.019. The plaintiffs are seeking monetary damages and attorneys' fees and costs. In September 2018, the District Court certified a class proposed by the plaintiff. Additionally, in September 2018, the District Court denied our motion for summary judgment and granted the plaintiff’s motion for partial summary judgment. Because the District Court certified a class prior to granting the plaintiff’s motion for partial summary judgment, the District Court’s ruling applies to the entire class. In October 2018, the Fifth Circuit Court of Appeals accepted our petition to review the District Court's order granting class certification.  We intend to appeal the District Court’s order granting plaintiff’s motion for summary judgment to the Fifth Circuit Court of Appeals if permission to appeal is granted. We will continue to vigorously defend the action and pursue such appeals.

In addition, we are subject to various other legal proceedings arising in the course of our business operations. While no assurances can be given, we do not currently believe that any of these other outstanding matters will have a material adverse effect on our financial condition, results of operations or cash flows in the event of a negative outcome.

Item 1A. Risk Factors.

There have been no material changes to the risk factors that were discussed in Part I, Item 1A of our Annual Report on Form 10-K for the year ended December 31, 2018, filed with the SEC on February 21, 2019.

Item 2. Unregistered Sales of Equity Securities and Use of Proceeds.

Purchases of Equity Securities

The following table reflects repurchases of shares of MAA's common stock during the three months ended June 30, 2019:

Period	Total Number of Shares Purchased(1)		Average Price Paid per Share(2)		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(3)
April 1, 2019 - April 30, 2019		6,370	$	109.94		—		4,000,000
May 1, 2019 - May 31, 2019		—	$	—		—		4,000,000
June 1, 2019 - June 30, 2019		—	$	—		—		4,000,000
Total		6,370				—		4,000,000

(1) The shares reflected in this column are shares of common stock surrendered by employees to satisfy their statutory minimum federal and state tax obligations associated with the vesting of restricted shares under the Second Amended and Restated 2013 Stock Incentive Plan.

(2) The price per share is based on the closing price of MAA's common stock as of the date of determination of the statutory minimum for federal and state tax obligations.

(3) This column reflects the number of shares of MAA's common stock that are available for purchase under the 4.0 million share repurchase program authorized by MAA's Board of Directors in December 2015.

41

Item 3. Defaults Upon Senior Securities.

Not applicable.

Item 4. Mine Safety Disclosures.

Not applicable.

Item 5. Other Information.

Not applicable.

42

Item 6. Exhibits.

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

Exhibit Number	Exhibit Description
2.1	Agreement and Plan of Merger by and among Mid-America Apartment Communities, Inc., Mid-America Apartments, L.P., Post Properties, Inc., Post GP Holdings, Inc., and Post Apartment Homes, L.P., dated as of August 15, 2016 (Filed as Exhibit 2.1 to the Registrant’s Current Report on Form 8-K filed on August 15, 2016 and incorporated herein by reference).
3.1	Composite Certificate of Limited Partnership of Mid-America Apartments, L.P.
10.1	Third Amended and Restated Credit Agreement, dated as of May 21, 2019, by and among Mid-America Apartments, L.P., as the borrower, Wells Fargo Bank, National Association, as administrative agent, Wells Fargo Securities, LLC, KeyBanc Capital Markets Inc., and JPMorgan Chase Bank, N.A., as the arrangers, KeyBank National Association and JPMorgan Chase Bank, N.A., as syndication agents, and other lenders named therein (filed as Exhibit 10.1 to the Registrant’s Current Report on Form 8-K filed on May 22, 2019 and incorporated herein by reference)
31.1	MAA Certification of Chief Executive Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
31.2	MAA Certification of Chief Financial Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
31.3	MAALP Certification of Chief Executive Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
31.4	MAALP Certification of Chief Financial Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
32.1	MAA Certification of Chief Executive Officer Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
32.2	MAA Certification of Chief Financial Officer Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
32.3	MAALP Certification of Chief Executive Officer Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
32.4	MAALP Certification of Chief Financial Officer 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 and Mid-America Apartments, L.P.'s Quarterly Report on Form 10-Q for the period ended June 30, 2019, filed with the SEC on August 1, 2019, formatted in iXBRL (Inline Extensible Business Reporting Language): (i) the Condensed Consolidated Balance Sheets as of June 30, 2019 (Unaudited) and December 31, 2018; (ii) the Condensed Consolidated Statements of Operations for the three and six months ended June 30, 2019 (Unaudited) and 2018 (Unaudited); (iii) the Condensed Consolidated Statements of Comprehensive Income for the three and six months ended June 30, 2019 (Unaudited) and 2018 (Unaudited); (iv) the Condensed Consolidated Statements of Cash Flows for the six months ended June 30, 2019 (Unaudited) and 2018 (Unaudited); and (v) Notes to Condensed Consolidated Financial Statements (Unaudited).

43

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:	August 1, 2019	By:	/s/ A. Clay Holder
			A. Clay Holder
			Senior Vice President and Chief Accounting Officer
			(Duly Authorized Officer)

44

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.
		By:	Mid-America Apartment Communities, Inc., its general partner
Date:	August 1, 2019		/s/ A. Clay Holder
			A. Clay Holder
			Senior Vice President and Chief Accounting Officer
			(Duly Authorized Officer)

45

EX-3.1

EXHIBIT 3.1

COMPOSITE OF
CERTIFICATE OF LIMITED PARTNERSHIP
FOR
MID-AMERICA APARTMENTS, L.P.
(As amended through September 14, 2018)

Pursuant to the provisions of Tennessee Revised Uniform Limited Partnership Act, Section 61-2-201, the undersigned general partner(s) hereby execute(s) a certificate of limited partnership:

1. The name of the limited partnership is Mid-America Apartments, L.P.

2. The complete address of the principle office is:

6815 Poplar Avenue, Suite 500

Germantown (Shelby County), Tennessee 38138

3. The complete address of the registered office in Tennessee is:

801 S. Gay Street

Knoxville (Knox County), Tennessee 37929

4. The name of the registered agent, to be located at the address listed as No. 3 is:

CT Corporation System

5. The name and address of the sole general partner is:

Mid-America Apartment Communities, Inc.

6815 Poplar Avenue, Suite 500

Germantown (Shelby County), Tennessee 38138

6. The certificate of limited partnership is to be effective upon filing by the Secretary of State.

EX-31.1

EXHIBIT 31.1

CERTIFICATION

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

1. I have reviewed this Annual 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:	August 1, 2019	/s/ H. Eric Bolton, Jr.
		H. Eric Bolton, Jr.
		Chairman of the Board of Directors
		Chief Executive Officer

EX-31.2

EXHIBIT 31.2

CERTIFICATION

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

1. I have reviewed this Annual 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:	August 1, 2019	/s/ Albert M. Campbell, III
		Albert M. Campbell, III
		Executive Vice President and Chief Financial Officer

EX-31.3

EXHIBIT 31.3

CERTIFICATION

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

1. I have reviewed this Annual 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:    August 1, 2019	/s/ H. Eric Bolton, Jr.
	H. Eric Bolton, Jr.
	Chairman of the Board of Directors
	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 Annual 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:    August 1, 2019	/s/ Albert M. Campbell, III
	Albert M. Campbell, III
	Executive Vice President and 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 June 30, 2019, 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.

Date:	August 1, 2019	/s/ H. Eric Bolton, Jr.
		H. Eric Bolton, Jr.
		Chairman of the Board of Directors
		Chief Executive Officer

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 June 30, 2019, 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.

Date:	August 1, 2019	/s/ Albert M. Campbell, III
		Albert M. Campbell, III
		Executive Vice President and Chief Financial Officer

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 June 30, 2019, 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.

Date:	August 1, 2019	/s/ H. Eric Bolton, Jr.
		H. Eric Bolton, Jr.
		Chairman of the Board of Directors
		Chief Executive Officer of Mid-America Apartment Communities, Inc., general partner of Mid-America Apartments, L.P.

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 June 30, 2019, 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.

Date:	August 1, 2019	/s/ Albert M. Campbell, III
		Albert M. Campbell, III
		Executive Vice President and Chief Financial Officer of Mid-America Apartment Communities, Inc., general partner of Mid-America Apartments, L.P.

XML

Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2019	Jul. 29, 2019
Document Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2019
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q2
Entity Registrant Name	MID AMERICA APARTMENT COMMUNITIES INC.,
Entity Central Index Key	0000912595
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		114,044,489
Entity Shell Company	false
Entity Current Reporting Status	Yes
Entity Emerging Growth Company	false
Entity Small Business	false
Entity File Number	001-12762
Entity Tax Identification Number	621543819
Entity Address, Address Line One	6815 Poplar Ave
Entity Address, Address Line Two	Suite 500
Entity Address, City or Town	Germantown
Entity Address, State or Province	TN
Entity Address, Postal Zip Code	38138
City Area Code	901
Local Phone Number	682-6600
Common Stock [Member]
Document Information [Line Items]
Trading Symbol	MAA
Cumulative Preferred Stock [Member]
Document Information [Line Items]
Trading Symbol	MAA*I
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
Entity Shell Company	false
Entity Current Reporting Status	Yes
Entity Emerging Growth Company	false
Entity Small Business	false
Entity File Number	333-190028-01
Entity Tax Identification Number	621543816
Entity Address, Address Line One	6815 Poplar Ave
Entity Address, Address Line Two	Suite 500
Entity Address, City or Town	Germantown
Entity Address, State or Province	TN
Entity Address, Postal Zip Code	38138
City Area Code	901
Local Phone Number	682-6600

XML

MAA Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Assets
Land	$ 1,883,960	$ 1,868,828
Buildings and improvements and other	11,775,716	11,670,216
Development and capital improvements in progress	97,526	59,506
Real Estate Investment Property, at Cost	13,757,202	13,598,550
Less: Accumulated depreciation	(2,791,606)	(2,549,287)
Real Estate Investment Property, Net	10,965,596	11,049,263
Undeveloped land	58,257	58,257
Investment in real estate joint venture	43,997	44,181
Real estate assets, net	11,067,850	11,151,701
Cash and cash equivalents	40,972	34,259
Restricted cash	16,712	17,414
Other assets	149,296	120,407
Total assets	11,274,830	11,323,781
Liabilities:
Unsecured notes payable	3,879,526	4,053,302
Secured notes payable	660,463	475,026
Accrued expenses and other liabilities	450,212	413,850
Total liabilities	4,990,201	4,942,178
Redeemable common stock	12,103	9,414
Shareholders' equity:
Preferred Stock, Value, Outstanding	9	9
Common stock	1,138	1,136
Additional paid-in capital	7,146,076	7,138,170
Accumulated distributions in excess of net income	(1,086,665)	(989,263)
Accumulated other comprehensive loss	(9,092)	(212)
Total MAA shareholders' equity	6,051,466	6,149,840
Noncontrolling interests - Operating Partnership units	215,404	220,043
Total Company's shareholders' equity	6,266,870	6,369,883
Noncontrolling interests - consolidated real estate entities	5,656	2,306
Total equity	6,272,526	6,372,189
Total liabilities and equity	$ 11,274,830	$ 11,323,781
Redeemable stock, shares issued and outstanding	102,779	98,371

XML

Condensed Consolidated Balance Sheets (Parenthetical) - $ / shares	6 Months Ended	12 Months Ended
	Jun. 30, 2019	Dec. 31, 2018
Common stock, par value per share	$ 0.01	$ 0.01
Common stock, shares authorized	145,000,000	145,000,000
Common stock, shares issued	114,043,089	113,844,267
Common stock, shares outstanding	114,043,089	113,844,267
Preferred Stock, Par or Stated Value Per Share	$ 0.01	$ 0.01
Preferred Stock, Shares Authorized	20,000,000	20,000,000
Preferred Stock, Dividend Rate, Percentage	8.50%	8.50%
Preferred Stock, Shares Issued	867,846	867,846
Preferred Stock, Shares Outstanding	867,846	867,846
Preferred Stock, Liquidation Preference Per Share	$ 50	$ 50
General Partners' Capital Account, Units Outstanding	114,043,089
Limited Partners' Capital Account, Units Outstanding	4,090,083
Limited Partner [Member]
General Partners' Capital Account, Units Outstanding	114,043,089	113,844,267
Limited Partners' Capital Account, Units Outstanding	4,090,083	4,111,301
Preferred Units, Issued	867,846	867,846
Preferred Units, Outstanding	867,846	867,846

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Condensed Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Revenues:
Rental and other property revenues	$ 407,390	$ 390,073	$ 808,568	$ 776,090
Expenses:
Operating expense, excluding real estate taxes and insurance	96,172	92,980	185,965	182,128
Real estate taxes and insurance	57,970	55,750	117,554	111,006
Depreciation and amortization	123,944	122,925	246,733	243,669
Total property operating expenses	278,086	271,655	550,252	536,803
Property management expenses	13,454	11,396	27,296	24,276
General and administrative expenses	10,598	9,211	23,751	19,343
Merger and integration related expenses	0	2,826	0	6,625
Interest expense	45,936	43,585	91,636	84,490
(Gain) loss on sale of depreciable real estate assets		(2)	13	(2)
Gain on sale of non-depreciable real estate assets	(297)	(2,761)	(9,260)	(2,911)
Other non-operating income	(4,775)	(8,032)	(5,710)	(5,691)
Income before income tax expense	64,388	62,195	130,590	113,157
Income tax expense	(682)	(570)	(1,323)	(1,210)
Income from continuing operations before real estate joint venture activity	63,706	61,625	129,267	111,947
Income from real estate joint venture	435	356	832	854
Net income	64,141	61,981	130,099	112,801
Net income attributable to noncontrolling interests	2,224	2,174	4,522	3,975
Net income available for shareholders	61,917	59,807	125,577	108,826
Dividends to MAA Series I preferred shareholders	922	922	1,844	1,844
Net income available for MAA common shareholders	$ 60,995	$ 58,885	$ 123,733	$ 106,982
Earnings per common share - basic:
Net income available for MAA common shareholders	$ 0.53	$ 0.52	$ 1.09	$ 0.94
Earnings per common share - diluted:
Net income available for MAA common shareholders	$ 0.53	$ 0.52	$ 1.09	$ 0.94
Limited Partner [Member]
Revenues:
Rental and other property revenues	$ 407,390	$ 390,073	$ 808,568	$ 776,090
Expenses:
Operating expense, excluding real estate taxes and insurance	96,172	92,980	185,965	182,128
Real estate taxes and insurance	57,970	55,750	117,554	111,006
Depreciation and amortization	123,944	122,925	246,733	243,669
Total property operating expenses	278,086	271,655	550,252	536,803
Property management expenses	13,454	11,396	27,296	24,276
General and administrative expenses	10,598	9,211	23,751	19,343
Merger and integration related expenses	0	2,826	0	6,625
Interest expense	45,936	43,585	91,636	84,490
(Gain) loss on sale of depreciable real estate assets		(2)	13	(2)
Gain on sale of non-depreciable real estate assets	(297)	(2,761)	(9,260)	(2,911)
Other non-operating income	(4,775)	(8,032)	(5,710)	(5,691)
Income before income tax expense	64,388	62,195	130,590	113,157
Income tax expense	(682)	(570)	(1,323)	(1,210)
Income from continuing operations before real estate joint venture activity	63,706	61,625	129,267	111,947
Income from real estate joint venture	435	356	832	854
Net income	64,141	61,981	130,099	112,801
Dividends to preferred unitholders	922	922	1,844	1,844
Net income available for MAALP common unitholders	$ 63,219	$ 61,059	$ 128,255	$ 110,957
Earnings per common share - basic:
Net income available for MAA common shareholders	$ 0.53	$ 0.52	$ 1.09	$ 0.94
Net income available for MAALP common unitholders	0.53	0.52	1.09	0.94
Earnings per common share - diluted:
Net income available for MAA common shareholders	0.53	0.52	1.09	0.94
Net income available for MAALP common unitholders	$ 0.53	$ 0.52	$ 1.09	$ 0.94

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Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Net income	$ 64,141	$ 61,981	$ 130,099	$ 112,801
Other comprehensive income:
Unrealized (loss) gain from derivative instruments	(5,426)	5,720	(7,882)	6,552
Adjustment for net gains reclassified into net income from derivative instruments	(578)	(555)	(1,323)	(748)
Total comprehensive income	58,137	67,146	120,894	118,605
Less: Comprehensive income attributable to noncontrolling interests	(2,012)	(2,353)	(4,197)	(4,183)
Comprehensive income	56,125	64,793	116,697	114,422
Limited Partner [Member]
Net income	64,141	61,981	130,099	112,801
Other comprehensive income:
Unrealized (loss) gain from derivative instruments	(5,426)	5,720	(7,882)	6,552
Adjustment for net gains reclassified into net income from derivative instruments	(578)	(555)	(1,323)	(748)
Comprehensive income	$ 58,137	$ 67,146	$ 120,894	$ 118,605

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Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Cash flows from operating activities:
Net income	$ 130,099	$ 112,801
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	247,266	244,521
Loss (gain) on sale of depreciable real estate assets	13	(2)
Gain on sale of non-depreciable real estate assets	(9,260)	(2,911)
Stock compensation expense	8,237	6,987
Amortization of debt premium and debt issuance costs	3,468	(2,969)
Net change in operating accounts and other	(11,356)	5,578
Net cash provided by operating activities	368,467	364,005
Cash flows from investing activities:
Purchases of real estate and other assets	(19,596)	(110,430)
Capital improvements, development and other	(133,354)	(126,333)
Distributions from real estate joint ventures	184
Contributions to affiliates	(2,700)	(750)
Proceeds from disposition of real estate assets	14,640	16,151
Net cash used in investing activities	(140,826)	(221,362)
Cash flows from financing activities:
Proceeds from lines of credit	545,000	355,000
Repayments of lines of credit	(1,085,000)	(655,000)
Net proceeds from commercial paper	367,000
Proceeds from notes payable	490,435	397,612
Principal payments on notes payable	(303,672)	(43,622)
Payment of deferred financing costs	(9,048)	(3,471)
Distributions to noncontrolling interests	(7,886)	(7,685)
Distributions paid on common shares/units	(218,758)	(209,843)
Distributions paid on preferred shares/units	(1,844)	(1,844)
Net change in other financing activities	2,143	(1,854)
Net cash used in financing activities	(221,630)	(170,707)
Net increase (decrease) in cash, cash equivalents and restricted cash	6,011	(28,064)
Cash, cash equivalents and restricted cash, beginning of period	51,673	88,867
Cash, cash equivalents and restricted cash, end of period	57,684	60,803
Reconciliation of cash, cash equivalents and restricted cash:
Cash and cash equivalents	40,972	32,610
Restricted cash	16,712	28,193
Cash, cash equivalents and restricted cash, end of period	57,684	60,803
Supplemental disclosure of cash flow information:
Interest paid	84,972	87,872
Income taxes paid	2,452	2,670
Supplemental disclosure of noncash investing and financing activities:
Conversion of OP Units to shares of common stock	1,157	3,118
Accrued construction in progress	21,063	22,109
Interest capitalized	1,093	1,283
Fair value adjustment on derivative instruments	1,963	4,597
Limited Partner [Member]
Cash flows from operating activities:
Net income	130,099	112,801
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	247,266	244,521
Loss (gain) on sale of depreciable real estate assets	13	(2)
Gain on sale of non-depreciable real estate assets	(9,260)	(2,911)
Stock compensation expense	8,237	6,987
Amortization of debt premium and debt issuance costs	3,468	(2,969)
Net change in operating accounts and other	(11,356)	5,578
Net cash provided by operating activities	368,467	364,005
Cash flows from investing activities:
Purchases of real estate and other assets	(19,596)	(110,430)
Capital improvements, development and other	(133,354)	(126,333)
Distributions from real estate joint ventures	184
Contributions to affiliates	(2,700)	(750)
Proceeds from disposition of real estate assets	14,640	16,151
Net cash used in investing activities	(140,826)	(221,362)
Cash flows from financing activities:
Proceeds from lines of credit	545,000	355,000
Repayments of lines of credit	(1,085,000)	(655,000)
Net proceeds from commercial paper	367,000
Proceeds from notes payable	490,435	397,612
Principal payments on notes payable	(303,672)	(43,622)
Payment of deferred financing costs	(9,048)	(3,471)
Distributions paid on common shares/units	(226,644)	(217,528)
Distributions paid on preferred shares/units	(1,844)	(1,844)
Net change in other financing activities	2,143	(1,854)
Net cash used in financing activities	(221,630)	(170,707)
Net increase (decrease) in cash, cash equivalents and restricted cash	6,011	(28,064)
Cash, cash equivalents and restricted cash, beginning of period	51,673	88,867
Cash, cash equivalents and restricted cash, end of period	57,684	60,803
Reconciliation of cash, cash equivalents and restricted cash:
Cash and cash equivalents	40,972	32,610
Restricted cash	16,712	28,193
Cash, cash equivalents and restricted cash, end of period	57,684	60,803
Supplemental disclosure of cash flow information:
Interest paid	84,972	87,872
Income taxes paid	2,452	2,670
Supplemental disclosure of noncash investing and financing activities:
Accrued construction in progress	21,063	22,109
Interest capitalized	1,093	1,283
Fair value adjustment on derivative instruments	$ 1,963	$ 4,597

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MAALP Condensed Consolidated Balance Sheets - USD ($) $ in Thousands		Jun. 30, 2019	Dec. 31, 2018	Jun. 30, 2018
Assets
Land		$ 1,883,960	$ 1,868,828
Buildings and improvements and other		11,775,716	11,670,216
Development and capital improvements in progress		97,526	59,506
Real Estate Investment Property, at Cost		13,757,202	13,598,550
Less: Accumulated depreciation		(2,791,606)	(2,549,287)
Real Estate Investment Property, Net		10,965,596	11,049,263
Undeveloped land		58,257	58,257
Investment in real estate joint venture		43,997	44,181
Real estate assets, net		11,067,850	11,151,701
Cash and cash equivalents		40,972	34,259	$ 32,610
Restricted cash		16,712	17,414	28,193
Other assets		149,296	120,407
Total assets		11,274,830	11,323,781
Liabilities:
Unsecured notes payable		3,879,526	4,053,302
Secured notes payable		660,463	475,026
Accrued expenses and other liabilities		450,212	413,850
Total liabilities		4,990,201	4,942,178
Redeemable common stock		12,103	9,414
Operating Partnership capital:
Accumulated other comprehensive loss		(9,092)	(212)
Noncontrolling interests - consolidated real estate entities		$ 5,656	$ 2,306
Redeemable stock, shares issued and outstanding		102,779	98,371
Limited Partner [Member]
Assets
Land		$ 1,883,960	$ 1,868,828
Buildings and improvements and other		11,775,716	11,670,216
Development and capital improvements in progress		97,526	59,506
Real Estate Investment Property, at Cost		13,757,202	13,598,550
Less: Accumulated depreciation		(2,791,606)	(2,549,287)
Real Estate Investment Property, Net		10,965,596	11,049,263
Undeveloped land		58,257	58,257
Investment in real estate joint venture		43,997	44,181
Real estate assets, net		11,067,850	11,151,701
Cash and cash equivalents		40,972	34,259	32,610
Restricted cash		16,712	17,414	$ 28,193
Other assets		149,296	120,407
Total assets		11,274,830	11,323,781
Liabilities:
Unsecured notes payable		3,879,526	4,053,302
Secured notes payable		660,463	475,026
Accrued expenses and other liabilities		450,212	413,850
Due to general partner		19	19
Total liabilities		4,990,220	4,942,197
Redeemable common stock		12,103	9,414
Operating Partnership capital:
Preferred Units, Preferred Partners' Capital Accounts		66,840	66,840
General Partners' Capital Account	[1]	5,993,973	6,083,142
Limited Partners' Capital Account	[1]	215,404	220,043
Accumulated other comprehensive loss		(9,366)	(161)
Total operating partners' capital		6,266,851	6,369,864
Noncontrolling interests - consolidated real estate entities		5,656	2,306
Total capital		6,272,507	6,372,170
Total liabilities and capital		$ 11,274,830	$ 11,323,781
Redeemable stock, shares issued and outstanding		102,779	98,371

[1] Number of units outstanding represent total OP Units regardless of classification on the Condensed Consolidated Balance Sheets. The number of units classified as redeemable common units on the Condensed Consolidated Balance Sheets as of June 30, 2019 and December 31, 2018 are 102,779 and 98,371, respectively.

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Basis of Presentation and Principles of Consolidation and Significant Accounting Policies

6 Months Ended

Jun. 30, 2019

Consolidation And Basis Of Presentation And Significant Accounting Policies [Abstract]

Basis of Presentation and Principles of Consolidation and Significant Accounting Policies

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

Unless the context otherwise requires, all references to 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" refer 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, unless the context otherwise requires, "shareholders" refers to the holders of shares of MAA’s common stock.  The common units of limited partnership interests in the Operating Partnership are referred to as "OP Units," and the holders of the OP Units are referred to as "common unitholders".

As of June 30, 2019, MAA owned 114,043,089 OP Units (or 96.5% of the total number of OP Units).  MAA conducts substantially all of its business and holds substantially all of its assets, directly or indirectly, 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.

Management believes combining the notes to the condensed consolidated financial statements of MAA and the Operating Partnership results in the following benefits:

• enhances 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; and

• creates time and cost efficiencies through the preparation of one combined set of notes instead of two separate sets.

MAA is a multifamily focused, self-administered and self-managed real estate investment trust, or REIT.  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.  Management believes 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 partners.  MAA's only material asset is its ownership of limited partnership interests in the Operating Partnership (other than cash held by MAA from time to time); therefore, MAA's primary function is 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 the Company's real estate assets.  Except for net proceeds from public equity issuances by MAA, which are contributed to the Operating Partnership in exchange for limited partnership interests, the Operating Partnership generates the capital required by the business through the Operating Partnership's operations, direct or indirect incurrence of indebtedness and issuance of OP Units.

The presentations of MAA's shareholders' equity and the Operating Partnership's capital are the principal areas of difference between the condensed 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, treasury shares, accumulated other comprehensive income and redeemable common stock.  The Operating Partnership's capital may include common capital and preferred capital of the general partner (MAA), limited partners' common capital and preferred capital, noncontrolling interest, accumulated other comprehensive income and redeemable common units.  Holders of OP Units (other than MAA and its subsidiaries) may require the Operating Partnership to redeem their OP Units from time to time, in which case the Operating Partnership may, at its option, pay the redemption price either in cash (in an amount per OP 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 prior to the redemption date) or by delivering one share of MAA's common stock (subject to adjustment under specified circumstances) for each OP Unit so redeemed.

Organization of Mid-America Apartment Communities, Inc.

The Company owns, operates, acquires and selectively develops apartment communities primarily located in the Southeast, Southwest and Mid-Atlantic regions of the United States.  As of June 30, 2019, the Company owned and operated 303 apartment communities through the Operating Partnership and its subsidiaries and had an ownership interest in one apartment community through an unconsolidated real estate joint venture.  As of June 30, 2019, the Company had five development communities under construction totaling 1,090 apartment units.  Total expected costs for these five development projects are $230.5 million, of which $82.5 million

had been incurred through June 30, 2019.  The Company expects to complete two developments in the second half of 2019, one development in the first half of 2020, one development in the second half of 2020 and one development in the first half of 2021.  Thirty of the Company's apartment communities include retail components with approximately 615,000 square feet of gross leasable space.  The Company also has four commercial properties with approximately 260,000 square feet of combined gross leasable area.  The Company’s apartment communities and commercial properties are located across 17 states and the District of Columbia.

Basis of Presentation and Principles of Consolidation

The accompanying condensed consolidated financial statements have been prepared by the Company's 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 condensed 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, directly or indirectly, approximately 80% to 100% of all consolidated subsidiaries, including the Operating Partnership.  The condensed 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, 80% to 100% of all consolidated subsidiaries.  In management's 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.

The Company invests in entities which may qualify as variable interest entities, or VIEs, and MAALP is considered a 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.  MAALP is classified as a VIE, since the limited partners lack substantive kick-out rights and substantive participating rights.  The Company consolidates all VIEs for which it is the primary beneficiary and uses the equity method to account for investments that qualify as VIEs but for which it is not the primary beneficiary.  In determining whether the Company is the primary beneficiary of a VIE, management considers both 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.  The Company uses the equity method of accounting for its investments in entities for which the Company exercises significant influence, but does not have the ability to exercise control.  The factors considered in determining whether the Company has the ability to exercise control include ownership of voting interests and participatory rights of investors (see "Investments in Unconsolidated Affiliates" below).

Changes in Presentation

In an effort to simplify the Company's presentation of cash flows from financing activities within the condensed consolidated statements of cash flows, the Company combined "Repurchase of common stock"; "Debt prepayment and extinguishment costs"; "Proceeds from issuances of common shares"; and "Exercise of stock options" into one line, "Net change in other financing activities" within the cash flows from financing activities section.  No presentation changes were made to the cash flows from operating or investing activities sections of the condensed consolidated statements of cash flows. Prior year amounts have been changed to conform to the Company's current year presentation.  These changes in presentation had no effect on the Company's ending cash, cash equivalents and restricted cash balances and did not impact the classification of cash flows between operating, investing and financing activities.

Noncontrolling Interests

As of June 30, 2019, the Company had two types of noncontrolling interests with respect to its consolidated subsidiaries, (1) noncontrolling interests related to the common unitholders of its Operating Partnership (see below) and (2) noncontrolling interest related to its consolidated real estate entities (see "Investment in Consolidated Real Estate Entities" below).  The noncontrolling interests in the accompanying condensed consolidated financial statements relating to the limited partnership interests in the Operating Partnership are owned by the holders of the Class A OP Units. MAA is the sole general partner of the Operating Partnership and holds all of the outstanding Class B OP Units. Net income (after allocations to preferred ownership interests) is allocated to MAA and the noncontrolling interests based on their respective ownership percentages of the Operating Partnership. Issuance of additional Class A OP Units or Class B OP Units changes the ownership percentage of both the noncontrolling interests and MAA. The issuance of Class B OP Units generally occurs when MAA issues common stock and the issuance proceeds are contributed to the Operating Partnership in exchange for Class B OP Units equal to the number of shares of MAA's common stock issued. At each reporting period, the allocation between total MAA shareholders’ equity and noncontrolling interests is adjusted to account for the change in the respective percentage ownership of the underlying equity of the Operating Partnership. MAA’s Board of Directors established economic rights in respect to each Class A OP Unit that were equivalent to the economic rights in respect to each share of MAA common stock. See Note 9 for additional details.

Investments in Unconsolidated Affiliates

Through its investment in a limited liability company, or the Apartment LLC, the Company together with an institutional investor indirectly owns one apartment community, Post Massachusetts Avenue, located in Washington, D.C.  The Company owned a 35.0% equity interest in the unconsolidated real estate joint venture as of June 30, 2019 and provides property and asset management services to the Apartment LLC for which it earns fees. The joint venture was determined to be a VIE, but the Company is not designated as the primary beneficiary.  As a result, the Company accounts for its investment in the Apartment LLC using the equity method of accounting as the Company is able to exert significant influence over the joint venture but does not have a controlling interest.  As of June 30, 2019, the Company's investment in the Apartment LLC totaled $44.0 million.

In September 2017, a subsidiary of the Operating Partnership invested in a limited partnership, Real Estate Technology Ventures, L.P. As of June 30, 2019, the Operating Partnership indirectly owned 20.7% of the limited partnership. The limited partnership was determined to be a VIE, but the Company is not designated as the primary beneficiary. As a result, the Company accounts for its investment in the limited partnership using the equity method of accounting as the investment is considered more than minor. As of June 30, 2019, the Company's investment in the limited partnership totaled $6.2 million and is included in "Other assets" in the accompanying Condensed Consolidated Balance Sheet. As of June 30, 2019, the Company was committed until September 2022 to make additional capital contributions totaling $10.9 million if and when called by the general partner of the limited partnership.

Investments in Consolidated Real Estate Entities

The Company owns a 92.5% equity interest in a consolidated real estate entity that developed, constructed and operates a 359-unit apartment community in Denver, Colorado. The owner of the remaining 7.5% equity interest, a private real estate company, was generally responsible for the development and construction of the community, which was completed during the year ended December 31, 2018.  The Company will continue to operate and manage the community.  The entity was determined to be a VIE with the Company designated as the primary beneficiary.  As a result, the accounts of the entity are consolidated by the Company.  As of June 30, 2019, the consolidated assets and liabilities included buildings and improvements and other, net of accumulated depreciation of $69.1 million; land of $14.9 million; and accrued expenses and other liabilities of $0.8 million.

During the first quarter of 2019, the Company acquired an 80.0% equity interest in a consolidated real estate entity that will develop, construct and operate an apartment community in Phoenix, Arizona.  The entity acquired the land site and initiated development of the apartment community in the first quarter of 2019.  The owner of the remaining 20.0% equity interest, a private real estate company, is responsible for the development and construction of the community. The Company will lease-up the property when units are delivered and operate and manage the community upon its completion.  The entity was determined to be a VIE with the Company designated as the primary beneficiary.  As a result, the accounts of the entity are consolidated by the Company.  As of June 30, 2019, the consolidated assets and liabilities included development and capital improvements in process of $8.7 million; land of $9.4 million; and accrued expenses and other liabilities of $2.0 million.

Fair Value Measurements

The Company applies the guidance in Accounting Standards Codification, or ASC, Topic 820, Fair Value Measurements and Disclosures, to the valuation of real estate assets recorded at fair value, if any; to its impairment valuation analysis of real estate assets; to its disclosure of the fair value of financial instruments, principally indebtedness; and to its derivative financial instruments.  Fair value disclosures required under ASC Topic 820 are summarized in Note 7 utilizing the following hierarchy:

Level 1 - Quoted prices in active markets for identical assets or liabilities that are accessible at the measurement date.

Level 2 - Inputs other than quoted prices that are observable for the asset or liability, either directly or indirectly.

Level 3 - Unobservable inputs for the assets or liability.

Leases

In 2016, the Financial Accounting Standard Board, or FASB, issued Accounting Standard Update, or ASU, 2016-02, Leases (Topic 842), which established new principles, presentation and disclosure requirements for lease accounting for both the lessee and lessor. On January 1, 2019, management adopted ASU 2016-02 using the modified retrospective transition approach with an effective date as of the adoption date and elected certain practical expedients allowed by the new standard. Under the new standard, lessors are required to account for leases in a similar manner as previous lease accounting guidance but aligned with the newly adopted revenue recognition standard.  Lessees are required to record most leases on the balance sheet and recognize lease expense in the income statement in a manner similar to previous practice. The new standard requires a lessee to recognize a lease liability for the obligation to make lease payments and a right-of-use asset for the right to use the underlying asset for all leases with terms of more than twelve months. Expenses related to leases determined to be operating leases are recognized on a straight-line basis, while expenses related to leases determined to be financing leases are recognized based on an effective interest method in which interest and amortization are presented separately in the income statement.

Comparative periods presented in this Quarterly Report on Form 10-Q continue to apply guidance in ASC Topic 840, Leases, and have not been recast as the Company adopted the new standard using the modified retrospective transition approach effective as of January 1, 2019. The adoption of the new lease standard has not resulted in a significant change in the accounting for the Company’s rental revenues as the Company's residential, retail and commercial leases, where it is the lessor, will continue to be accounted for as operating leases. Management has elected available practical expedients that provide lessors an option not to separate lease and non-lease components when certain criteria are met, and instead, allow for those components to be accounted for as a single lease component. Thus, beginning with the effective date of the adoption of the new standard, January 1, 2019, rental revenues and non-lease reimbursable property revenues meet the criteria to be aggregated into a single lease component and are reported in the line item, "Rental revenues", as presented in the disaggregation of the Company's revenues in Note 11.

The Company is the lessee under certain ground, office, equipment and other operating leases. Based on its election of the package of practical expedients provided in ASU 2016-02, the Company did not reassess the classification of existing leases with its adoption of ASC Topic 842.  The Company’s existing leases as of January 1, 2019 will continue to be accounted for as operating leases; however, if contracts are modified subsequent to the adoption of ASC Topic 842, the Company will be required to reassess the contracts using guidance provided under ASC Topic 842.  The Company recognized total right-of-use assets of $54.3 million within "Other assets" and related lease obligations of $33.6 million within "Accrued expenses and other liabilities" on its Condensed Consolidated Balance Sheets for leases in effect as of January 1, 2019.  As of June 30, 2019, the balance of total right-of-use assets within “Other assets” was $53.5 million, and the balance of related lease obligations within “Accrued expenses and other liabilities” was $33.2 million.  As most leases do not provide a readily determinable implicit rate to discount future minimum lease payments to present value, management estimated the Company's incremental borrowing rate based on information available as of the date of adoption and based on the remaining lease terms as of the date of initial application.  Operating leases recognized upon adoption had a weighted-average remaining lease term of approximately 33 years and a weighted-average discount rate of approximately 4.4%.  Operating leases as of June 30, 2019 have a weighted-average remaining lease term of approximately 32 years and a weighted-average discount rate of approximately 4.4%.  Lease expense for the six months ended June 30, 2019, recognized under ASC Topic 842, continued to be immaterial for the Company and was recognized in a similar manner as compared to the six months ended June 30, 2018. Cash paid for amounts included in the measurement of operating lease liabilities during the six months ended June 30, 2019 was also immaterial.

Revenue Recognition

The Company primarily leases multifamily residential apartments under operating leases generally due on a monthly basis with terms of approximately one year or less, which are recorded as operating leases.  Rental revenues are recognized in accordance with ASC Topic 842 using a method that represents a straight-line basis over the term of the lease. In addition, in circumstances where a lease incentive is provided to tenants, the incentive is recognized as a reduction of rental revenues on a straight-line basis over the reasonably assured lease term.  Rental revenues represent approximately 93% of the Company's total revenues and include gross rents charged less adjustments for concessions and bad debt.  Approximately 6% of the Company's total revenues represents reimbursable property revenues from its tenants for utility reimbursements, which are generally recognized and due on a monthly basis as tenants obtain control of the service over the term of the lease.  The remaining 1% of the Company's total revenues represents other non-lease revenues primarily driven by nonrefundable fees and commissions.

With the adoption of ASC Topic 842, rental revenues and non-lease reimbursable property revenues meet the criteria to be aggregated into a single lease component and to be reported in a single line, while non-lease reimbursable property revenues recognized prior to January 1, 2019 will continue to be reported as non-lease revenues and recognized in accordance with ASC Topic 606, Revenue Recognition. The guidance requires that revenue recognized outside of the scope of ASC Topic 842 is recognized when a customer obtains control of promised goods or services in an amount that reflects the consideration the entity expects to receive in exchange for those goods or services.

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Earnings Per Common Share of MAA

6 Months Ended

Jun. 30, 2019

Earnings Per Common Share Of M A A [Abstract]

Earnings per Common Share of MAA

2.Earnings per Common Share of MAA

Basic earnings per share is computed using the two-class method by dividing net income available to MAA common shareholders by the weighted average number of common shares outstanding during the period.  All outstanding unvested restricted share awards contain rights to non-forfeitable dividends and participate in undistributed earnings with 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 diluted earnings per share being the more dilutive of the treasury stock or two-class methods.  OP Units are included in dilutive earnings per share calculations when the units are dilutive to earnings per share.

For the three and six months ended June 30, 2019 and 2018, MAA's diluted earnings per share was computed using the treasury stock method as presented below (dollars and shares in thousands, except per share amounts):

	Three months ended June 30,						Six months ended June 30,
	2019			2018			2019			2018
Calculation of Earnings per Common Share - basic
Net income	$	64,141		$	61,981		$	130,099		$	112,801
Net income attributable to noncontrolling interests		(2,224	)		(2,174	)		(4,522	)		(3,975	)
Unvested restricted stock (allocation of earnings)		(96	)		(78	)		(184	)		(142	)
Preferred dividends		(922	)		(922	)		(1,844	)		(1,844	)
Net income available for common shareholders, adjusted	$	60,899		$	58,807		$	123,549		$	106,840
Weighted average common shares - basic		113,838			113,646			113,783			113,595
Earnings per common share - basic	$	0.53		$	0.52		$	1.09		$	0.94
Calculation of Earnings per Common Share - diluted
Net income	$	64,141		$	61,981		$	130,099		$	112,801
Net income attributable to noncontrolling interests (1)		(2,224	)		(2,174	)		(4,522	)		(3,975	)
Preferred dividends		(922	)		(922	)		(1,844	)		(1,844	)
Net income available for common shareholders, adjusted	$	60,995		$	58,885		$	123,733		$	106,982
Weighted average common shares - basic		113,838			113,646			113,783			113,595
Effect of dilutive securities		249			207			211			174
Weighted average common shares - diluted		114,087			113,853			113,994			113,769
Earnings per common share - diluted	$	0.53		$	0.52		$	1.09		$	0.94

^{(1) For the three months ended June 30, 2019 and June 30, 2018, 4.1 million OP Units and their related income are not included in the diluted earnings per share calculations as they are not dilutive. For the six months ended June 30, 2019 and June 30, 2018, 4.1 million OP Units and 4.2 million OP Units, respectively, and their related income are not included in the diluted earnings per share calculations as they are not dilutive.}

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Earnings Per OP Unit of MAALP

6 Months Ended

Jun. 30, 2019

Earnings Per O P Unitof M A A L P [Abstract]

Earnings per OP Unit of MAALP

3.Earnings per OP Unit of MAALP

Basic earnings per common unit is computed using the two-class method by dividing net income available for common unitholders by the weighted average number of OP Units outstanding during the period.  All outstanding unvested restricted unit awards contain rights to non-forfeitable distributions 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 common unit.  Diluted earnings per common unit reflects the potential dilution that could occur if securities or other contracts to issue OP Units were exercised or converted into OP Units.  Both the unvested restricted unit awards and other potentially dilutive common units, and the related impact to earnings, are considered when calculating earnings per common unit on a diluted basis with diluted earnings per common unit being the more dilutive of the treasury stock or two-class methods.

For the three and six months ended June 30, 2019 and 2018, MAA's diluted earnings per common unit was computed using the treasury stock method as presented below (dollars and units in thousands, except per unit amounts):

	Three months ended June 30,						Six months ended June 30,
	2019			2018			2019			2018
Calculation of Earnings per Common Unit - basic
Net income	$	64,141		$	61,981		$	130,099		$	112,801
Unvested restricted stock (allocation of earnings)		(96	)		(78	)		(184	)		(142	)
Preferred unit distributions		(922	)		(922	)		(1,844	)		(1,844	)
Net income available for common unitholders, adjusted	$	63,123		$	60,981		$	128,071		$	110,815
Weighted average common units - basic		117,935			117,783			117,886			117,754
Earnings per common unit - basic	$	0.53		$	0.52		$	1.09		$	0.94
Calculation of Earnings per Common Unit - diluted
Net income	$	64,141		$	61,981		$	130,099		$	112,801
Preferred unit distributions		(922	)		(922	)		(1,844	)		(1,844	)
Net income available for common unitholders, adjusted	$	63,219		$	61,059		$	128,255		$	110,957
Weighted average common units - basic		117,935			117,783			117,886			117,754
Effect of dilutive securities		249			207			211			174
Weighted average common units - diluted		118,184			117,990			118,097			117,928
Earnings per common unit - diluted	$	0.53		$	0.52		$	1.09		$	0.94

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MAA Equity

6 Months Ended

Jun. 30, 2019

M A A Equity [Abstract]

MAA Equity

4.MAA Equity

Changes in total equity and its components for the three months ended June 30, 2019 and 2018 were as follows (dollars in thousands):

	Mid-America Apartment Communities, Inc. Shareholders' Equity
	Preferred Stock		Common Stock		Additional Paid-In Capital			Accumulated Distributions in Excess of Net Income			Accumulated Other Comprehensive Loss			Noncontrolling Interests - Operating Partnership			Noncontrolling Interests - Consolidated Real Estate Entities		Total Equity
EQUITY BALANCE MARCH 31, 2019	$	9	$	1,137	$	7,141,544		$	(1,037,268	)	$	(3,300	)	$	218,011		$	5,166	$	6,325,299
Net income		—		—		—			61,917			—			2,224			—		64,141
Other comprehensive loss - derivative    instruments		—		—		—			—			(5,792	)		(212	)		—		(6,004	)
Issuance and registration of common shares		—		1		(520	)		—			—			—			—		(519	)
Shares repurchased and retired		—		—		(701	)		—			—			—			—		(701	)
Exercise of stock options		—		—		1,032			—			—			—			—		1,032
Shares issued in exchange for common units		—		—		821			—			—			(821	)		—		—
Shares issued in exchange for redeemable stock		—		—		575			—			—			—			—		575
Redeemable stock fair market value adjustment		—		—		—			(835	)		—			—			—		(835	)
Adjustment for noncontrolling interests in    Operating Partnership		—		—		(127	)		—			—			127			—		—
Amortization of unearned compensation		—		—		3,452			—			—			—			—		3,452
Dividends on preferred stock		—		—		—			(922	)		—			—			—		(922	)
Dividends on common stock  ($0.9600 per share)		—		—		—			(109,557	)		—			—			—		(109,557	)
Dividends on noncontrolling interests units    ($0.9600 per unit)		—		—		—			—			—			(3,925	)		—		(3,925	)
Contribution from noncontrolling interest		—		—		—			—			—			—			490		490
EQUITY BALANCE JUNE 30, 2019	$	9	$	1,138	$	7,146,076		$	(1,086,665	)	$	(9,092	)	$	215,404		$	5,656	$	6,272,526

	Mid-America Apartment Communities, Inc. Shareholders' Equity
	Preferred Stock		Common Stock		Additional Paid-In Capital			Accumulated Distributions in Excess of Net Income			Accumulated Other Comprehensive Income		Noncontrolling Interests - Operating Partnership			Noncontrolling Interests - Consolidated Real Estate Entities		Total Equity
EQUITY BALANCE MARCH 31, 2018	$	9	$	1,135	$	7,127,740		$	(840,642	)	$	3,000	$	226,815		$	2,306	$	6,520,363
Net income		—		—		—			59,807			—		2,174			—		61,981
Other comprehensive income - derivative instruments		—		—		—			—			4,986		179			—		5,165
Issuance and registration of common shares		—		—		(341	)		—			—		—			—		(341	)
Shares issued in exchange for common units		—		1		337			—			—		(338	)		—		—
Redeemable stock fair market value adjustment		—		—		—			(892	)		—		—			—		(892	)
Adjustment for noncontrolling interests in    Operating Partnership		—		—		203			—			—		(203	)		—		—
Amortization of unearned compensation		—		—		2,963			—			—		—			—		2,963
Dividends on preferred stock		—		—		—			(922	)		—		—			—		(922	)
Dividends on common stock ($0.9225 per share)		—		—		—			(105,023	)		—		—			—		(105,023	)
Dividends on noncontrolling interests units    ($0.9225 per unit)		—		—		—			—			—		(3,814	)		—		(3,814	)
EQUITY BALANCE JUNE 30, 2018	$	9	$	1,136	$	7,130,902		$	(887,672	)	$	7,986	$	224,813		$	2,306	$	6,479,480

Changes in total equity and its components for the six months ended June 30, 2019 and 2018 were as follows (dollars in thousands):

	Mid-America Apartment Communities, Inc. Shareholders' Equity
	Preferred Stock		Common Stock		Additional Paid-In Capital			Accumulated Distributions in Excess of Net Income			Accumulated Other Comprehensive Loss			Noncontrolling Interests - Operating Partnership			Noncontrolling Interests - Consolidated Real Estate Entities		Total Equity
EQUITY BALANCE DECEMBER 31, 2018	$	9	$	1,136	$	7,138,170		$	(989,263	)	$	(212	)	$	220,043		$	2,306	$	6,372,189
Net income		—		—		—			125,577			—			4,522			—		130,099
Other comprehensive loss - derivative    instruments		—		—		—			—			(8,880	)		(325	)		—		(9,205	)
Issuance and registration of common shares		—		2		608			—			—			—			—		610
Shares repurchased and retired		—		—		(3,724	)		—			—			—			—		(3,724	)
Exercise of stock options		—		—		1,240			—			—			—			—		1,240
Shares issued in exchange for common units		—		—		1,157			—			—			(1,157	)		—		—
Shares issued in exchange for redeemable stock		—		—		575			—			—			—			—		575
Redeemable stock fair market value adjustment		—		—		—			(2,186	)		—			—			—		(2,186	)
Adjustment for noncontrolling interests in    Operating Partnership		—		—		(187	)		—			—			187			—		—
Amortization of unearned compensation		—		—		8,237			—			—			—			—		8,237
Dividends on preferred stock		—		—		—			(1,844	)		—			—			—		(1,844	)
Dividends on common stock  ($1.9200 per share)		—		—		—			(218,949	)		—			—			—		(218,949	)
Dividends on noncontrolling interests units    ($1.9200 per unit)		—		—		—			—			—			(7,866	)		—		(7,866	)
Contribution from noncontrolling interest		—		—		—			—			—			—			3,350		3,350
EQUITY BALANCE JUNE 30, 2019	$	9	$	1,138	$	7,146,076		$	(1,086,665	)	$	(9,092	)	$	215,404		$	5,656	$	6,272,526

	Mid-America Apartment Communities, Inc. Shareholders' Equity
	Preferred Stock		Common Stock		Additional Paid-In Capital			Accumulated Distributions in Excess of Net Income			Accumulated Other Comprehensive Income		Noncontrolling Interests - Operating Partnership			Noncontrolling Interests - Consolidated Real Estate Entities		Total Equity
EQUITY BALANCE DECEMBER 31, 2017	$	9	$	1,134	$	7,121,112		$	(784,500	)	$	2,157	$	231,676		$	2,306	$	6,573,894
Net income		—		—		—			108,826			—		3,975			—		112,801
Other comprehensive income - derivative instruments		—		—		—			—			5,596		208			—		5,804
Issuance and registration of common shares		—		1		(237	)		—			—		—			—		(236	)
Shares repurchased and retired		—		—		(2,912	)		—			—		—			—		(2,912	)
Exercise of stock options		—		—		625			—			—		—					625
Shares issued in exchange for common units		—		1		3,117			—			—		(3,118	)		—		—
Shares issued in exchange for redeemable stock		—		—		1,915			—			—		—			—		1,915
Redeemable stock fair market value adjustment		—		—		—			73			—		—			—		73
Adjustment for noncontrolling interests in    Operating Partnership		—		—		295			—			—		(295	)		—		—
Cumulative adjustment due to adoption of ASU    2017-12				—		—			(233	)		233		—			—		—
Amortization of unearned compensation		—		—		6,987			—			—		—			—		6,987
Dividends on preferred stock		—		—		—			(1,844	)		—		—			—		(1,844	)
Dividends on common stock ($1.8450 per share)		—		—		—			(209,994	)		—		—			—		(209,994	)
Dividends on noncontrolling interests units    ($1.8450 per unit)		—		—		—			—			—		(7,633	)		—		(7,633	)
EQUITY BALANCE JUNE 30, 2018	$	9	$	1,136	$	7,130,902		$	(887,672	)	$	7,986	$	224,813		$	2,306	$	6,479,480

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MAALP Capital

6 Months Ended

Jun. 30, 2019

M A A L P Capital [Abstract]

MAALP Capital

5.MAALP Capital

Changes in total capital and its components for the three months ended June 30, 2019 and 2018 were as follows (dollars in thousands):

	Mid-America Apartments, L.P. Unitholders' Capital
	Limited Partner			General Partner			Preferred Units			Accumulated Other Comprehensive Loss			Noncontrolling Interests- Consolidated Real Estate Entities		Total Partnership Capital
CAPITAL BALANCE MARCH 31, 2019	$	218,011		$	6,038,625		$	66,840		$	(3,362	)	$	5,166	$	6,325,280
Net income		2,224			60,995			922			—			—		64,141
Other comprehensive loss - derivative instruments		—			—			—			(6,004	)		—		(6,004	)
Issuance of units		—			(519	)		—			—			—		(519	)
Units repurchased and retired		—			(701	)		—			—			—		(701	)
Exercise of unit options		—			1,032			—			—			—		1,032
General partnership units issued in exchange for limited partnership units		(821	)		821			—			—			—		—
Units issued in exchange for redeemable units		—			575			—			—			—		575
Redeemable units fair market value adjustment		—			(835	)		—			—			—		(835	)
Adjustment for limited partners' capital at redemption value		(85	)		85			—			—			—		—
Amortization of unearned compensation		—			3,452			—			—			—		3,452
Distributions to preferred unitholders		—			—			(922	)		—			—		(922	)
Distributions to common unitholders ($0.9600 per unit)		(3,925	)		(109,557	)		—			—			—		(113,482	)
Contribution from noncontrolling interest		—			—			—			—			490		490
CAPITAL BALANCE JUNE 30, 2019	$	215,404		$	5,993,973		$	66,840		$	(9,366	)	$	5,656	$	6,272,507

	Mid-America Apartments, L.P. Unitholders' Capital
	Limited Partner			General Partner			Preferred Units			Accumulated Other Comprehensive Income		Noncontrolling Interests - Consolidated Real Estate Entities		Total Partnership Capital
CAPITAL BALANCE MARCH 31, 2018	$	226,815		$	6,221,216		$	66,840		$	3,167	$	2,306	$	6,520,344
Net income		2,174			58,885			922			—		—		61,981
Other comprehensive income - derivative instruments		—			—			—			5,165		—		5,165
Issuance of units		—			(341	)		—			—		—		(341	)
General partnership units issued in exchange for limited partnership units		(338	)		338			—			—		—		—
Redeemable units fair market value adjustment		—			(892	)		—			—		—		(892	)
Adjustment for limited partners' capital at redemption value		(24	)		24			—			—		—		—
Amortization of unearned compensation		—			2,963			—			—		—		2,963
Distributions to preferred unitholders		—			—			(922	)		—		—		(922	)
Distributions to common unitholders ($0.9225 per unit)		(3,814	)		(105,023	)		—			—		—		(108,837	)
CAPITAL BALANCE JUNE 30, 2018	$	224,813		$	6,177,170		$	66,840		$	8,332	$	2,306	$	6,479,461

Changes in total capital and its components for the six months ended June 30, 2019 and 2018 were as follows (dollars in thousands):

	Mid-America Apartments, L.P. Unitholders' Capital
	Limited Partner			General Partner			Preferred Units			Accumulated Other Comprehensive Loss			Noncontrolling Interests- Consolidated Real Estate Entities		Total Partnership Capital
CAPITAL BALANCE DECEMBER 31, 2018	$	220,043		$	6,083,142		$	66,840		$	(161	)	$	2,306	$	6,372,170
Net income		4,522			123,733			1,844			—			—		130,099
Other comprehensive loss - derivative instruments		—			—			—			(9,205	)		—		(9,205	)
Issuance of units		—			610			—			—			—		610
Units repurchased and retired		—			(3,724	)		—			—			—		(3,724	)
Exercise of unit options		—			1,240			—			—			—		1,240
General partnership units issued in exchange for limited partnership units		(1,157	)		1,157			—			—			—		—
Units issued in exchange for redeemable units		—			575			—			—			—		575
Redeemable units fair market value adjustment		—			(2,186	)		—			—			—		(2,186	)
Adjustment for limited partners' capital at redemption value		(138	)		138			—			—			—		—
Amortization of unearned compensation		—			8,237			—			—			—		8,237
Distributions to preferred unitholders		—			—			(1,844	)		—			—		(1,844	)
Distributions to common unitholders ($1.9200 per unit)		(7,866	)		(218,949	)		—			—			—		(226,815	)
Contribution from noncontrolling interest		—			—			—			—			3,350		3,350
CAPITAL BALANCE JUNE 30, 2019	$	215,404		$	5,993,973		$	66,840		$	(9,366	)	$	5,656	$	6,272,507

	Mid-America Apartments, L.P. Unitholders' Capital
	Limited Partner			General Partner			Preferred Units			Accumulated Other Comprehensive Income		Noncontrolling Interests - Consolidated Real Estate Entities		Total Partnership Capital
CAPITAL BALANCE DECEMBER 31, 2017	$	231,676		$	6,270,758		$	66,840		$	2,295	$	2,306	$	6,573,875
Net income		3,975			106,982			1,844			—		—		112,801
Other comprehensive income - derivative instruments		—			—			—			5,804		—		5,804
Issuance of units		—			(236	)		—			—		—		(236	)
Units repurchased and retired		—			(2,912	)		—			—		—		(2,912	)
Exercise of unit options		—			625			—			—		—		625
General partnership units issued in exchange for limited partnership units		(3,118	)		3,118			—			—		—		—
Units issued in exchange for redeemable units		—			1,915			—			—		—		1,915
Redeemable units fair market value adjustment		—			73			—			—		—		73
Adjustment for limited partners' capital at redemption value		(87	)		87			—			—		—		—
Cumulative adjustment due to adoption of ASU 2017-12		—			(233	)		—			233		—		—
Amortization of unearned compensation		—			6,987			—			—		—		6,987
Distributions to preferred unitholders		—			—			(1,844	)		—		—		(1,844	)
Distributions to common unitholders ($1.8450 per unit)		(7,633	)		(209,994	)		—			—		—		(217,627	)
CAPITAL BALANCE JUNE 30, 2018	$	224,813		$	6,177,170		$	66,840		$	8,332	$	2,306	$	6,479,461

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Borrowings

6 Months Ended

Jun. 30, 2019

Notes To Financial Statements [Abstract]

Borrowings

6.Borrowings

The following table summarizes the Company's outstanding debt as of June 30, 2019 (dollars in thousands):

	Balance			Weighted Average Effective Rate			Weighted Average Contract Maturity
Unsecured debt
Variable rate revolving credit facility	$	—			—			—
Variable rate commercial paper program		367,000			2.7	%	7/16/2019
Fixed rate senior notes		2,942,000			4.0	%	11/26/2025
Term loans fixed with swaps		300,000			2.3	%	3/1/2022
Variable rate term loans		300,000			3.4	%	8/29/2020
Debt issuance costs, discounts and fair market value adjustments		(29,474	)
Total unsecured debt	$	3,879,526			3.7	%
Fixed rate secured debt
Individual property mortgages	$	663,764			4.5	%	5/17/2036
Debt issuance costs and fair market value adjustments		(3,301	)
Total secured debt	$	660,463			4.5	%
Total outstanding debt	$	4,539,989			3.8	%

Unsecured Revolving Credit Facility

In May 2019, MAALP entered into a $1.0 billion unsecured revolving credit facility with a syndicate of banks led by Wells Fargo Bank, National Association, or Wells Fargo, and fifteen other banks, which is referred to as the Credit Facility.  The Credit Facility replaced the previous credit facility and includes an expansion option up to $1.5 billion.  The Credit Facility bears an interest rate of the London Interbank Offered Rate, or LIBOR, plus a spread of 0.75% to 1.45% based on an investment grade pricing grid. The Credit Facility matures in May 2023 with an option to extend for two additional six-month periods.  As of June 30, 2019, MAALP had no balance outstanding under the Credit Facility, while $2.5 million of capacity was being used to support outstanding letters of credit.

Unsecured Commercial Paper

During May 2019, MAALP established an unsecured commercial paper program whereby MAALP can issue unsecured commercial paper notes with varying maturities not to exceed 397 days up to a maximum aggregate principal amount outstanding of $500.0 million.  As of June 30, 2019, MAALP had $367.0 million outstanding under the commercial paper program.

Senior Unsecured Notes

As of June 30, 2019, MAALP had approximately $2.7 billion in principal amount of publicly issued senior unsecured notes and $242.0 million of privately placed senior unsecured notes.  The senior unsecured notes had maturities at issuance ranging from seven to twelve years, with an average of 6.4 years remaining until maturity as of June 30, 2019.

In March 2019, MAALP publicly issued $300.0 million in aggregate principal amount of senior unsecured notes, maturing March 2029 with an interest rate of 3.950% per annum, or the 2029 Notes.  The purchase price paid by the initial purchasers was 99.720% of the principal amount.  The 2029 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 2029 Notes is payable on March 15 and September 15 of each year, beginning on September 15, 2019.  The net proceeds of the offering, after deducting the original issue discount, underwriting commissions and expenses of approximately $2.8 million, were $297.2 million.  The 2029 Notes have been reflected net of discount and debt issuance costs in the Condensed Consolidated Balance Sheets as of June 30, 2019.  In connection with the issuance of the 2029 Notes, MAALP cash settled $300.0 million in forward interest rate swap agreements, entered into during the second half of 2018 to effectively lock the interest rate on the planned transaction, resulting in an effective interest rate of 4.240% over the ten year life of the 2029 Notes.

Unsecured Term Loans

As of June 30, 2019, the Company maintained three term loans with a syndicate of banks, one led by U.S. Bank National Association, or U.S. Bank, one led by KeyBank National Association, or KeyBank, and one by Wells Fargo.  The U.S. Bank term loan has a balance of $150.0 million, matures in 2020, and has a variable interest rate of LIBOR plus a spread of 0.90% to 1.90% based on the Company's credit ratings.  The KeyBank term loan has a balance of $150.0 million, matures in 2021, and has a variable interest rate of LIBOR plus a spread of 0.90% to 1.75% based on the Company's credit ratings.  The Wells Fargo term loan has a balance of $300.0 million, matures in 2022, and has a variable interest rate of LIBOR plus a spread of 0.90% to 1.75% based on the Company's credit ratings.  The interest rate of the Wells Fargo term loan due in 2022 is fixed at 2.32% with a forward swap through the swap's maturity date, January 2020.  

In May 2019, the Company retired a $300.0 million unsecured term loan with Wells Fargo due in June 2019.

Secured Property Mortgages

As of June 30, 2019, the Company had $663.8 million of fixed rate conventional property mortgages with a weighted average interest rate of 4.50% and a weighted average maturity in 2036, which includes a $191.3 million mortgage with a fixed rate of 4.43% associated with seven apartment communities entered into in February 2019.  The mortgage is scheduled to mature in February 2049.

Guarantees

As of June 30, 2019, MAA fully and unconditionally guaranteed $242.0 million of the privately placed senior unsecured notes issued by MAALP.

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Financial Instruments and Derivatives

6 Months Ended

Jun. 30, 2019

Fair Value Disclosures [Abstract]

Financial Instruments and Derivatives

7.Financial Instruments and Derivatives

Financial Instruments Not Carried at Fair Value

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

Fixed rate notes payable as of June 30, 2019 and December 31, 2018, totaled $3.6 billion and $3.1 billion, respectively, and had estimated fair values of $3.8 billion and $3.1 billion (excluding prepayment penalties) as of June 30, 2019 and December 31, 2018, respectively.  The carrying values of variable rate notes payable (excluding the impact of interest rate swap agreements) as of June 30, 2019 and December 31, 2018, totaled $0.9 billion and $1.1 billion, respectively, and had estimated fair values of $0.9 billion and $1.1 billion (excluding prepayment penalties) as of June 30, 2019 and December 31, 2018, respectively.  The fair values of fixed rate 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 rate debt are determined using the stated variable rate plus the current market credit spread. The variable rates reset every 30 to 90 days, and management concluded that these rates reasonably estimate current market rates.

Financial Instruments Measured at Fair Value on a Recurring Basis

As of June 30, 2019, the Company had four outstanding interest rate derivatives with a total current notional balance of $300.0 million that were designated as cash flow hedges of interest rate risk and two forward rate swaps totaling $150.0 million, which hedge the first 10 years of interest rate payments on debt the Company anticipates issuing in the future. The Company uses interest rate swaps to add stability to interest expense; to manage, or hedge, its exposure to interest rate movements associated with its variable rate debt; or as hedges in anticipation of future debt transactions. 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 value of interest rate derivative contracts designated as hedging instruments recorded in "Other assets" in the accompanying Condensed Consolidated Balance Sheets was $1.1 million and $3.7 million as of June 30, 2019 and December 31, 2018, respectively.  The fair value of interest rate derivative contract liabilities recorded in "Accrued expenses and other liabilities" in the accompanying Condensed Consolidated Balance Sheet was $4.8 million and $5.3 million as of June 30, 2019 and December 31, 2018, respectively.  

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

The derivative asset related to the redemption feature embedded in the MAA Series I preferred stock is valued using widely accepted valuation techniques, including a discounted cash flow analysis in which the perpetual value of the preferred shares is compared to the value of the preferred shares assuming the call option is exercised, with the value of the bifurcated call option as the difference between the two values. This analysis reflects the contractual terms of the redeemable preferred shares, which are redeemable at the Company's option beginning on October 1, 2026 and at the redemption price of $50 per share (see Note 8). The analysis uses observable market-based inputs, including trading data available on the preferred shares, coupon yields on preferred stock issuances from REITs with similar credit ratings as MAA and treasury rates to determine the fair value of the bifurcated call option.

The redemption feature embedded in the MAA Series I preferred stock is reported as a derivative asset in "Other assets" in the accompanying Condensed Consolidated Balance Sheets and is adjusted to its fair value at each reporting date, with a corresponding non-cash adjustment to "Other non-operating income" in the accompanying Condensed Consolidated Statements of Operations. As a result of adjustments of non-cash income recorded to reflect the change in fair value of the derivative asset during the six months ended June 30, 2019, the fair value of the embedded derivative increased to $22.7 million as of June 30, 2019 as compared to $18.6 million as of December 31, 2018.

The Company has determined the majority of the inputs used to value its outstanding debt and derivatives, including its embedded derivative, fall within Level 2 of the fair value hierarchy, and as a result, the fair value valuation of its debt and all of its derivatives held as of June 30, 2019 and December 31, 2018 were classified as Level 2 in the fair value hierarchy.  The Company's derivative financial instruments and their related gains and losses are reported in "Net change in operating accounts and other" in the accompanying Condensed Consolidated Statements of Cash Flows.

Cash Flow Hedges of Interest Rate Risk

The changes in the fair value of derivatives designated and that qualify as cash flow hedges is recorded in "Accumulated other comprehensive loss" and is subsequently reclassified into earnings in the period that the hedged forecasted transaction affects earnings. As long as a hedging instrument is designated and the results of the effectiveness testing support that the instrument qualifies for hedge accounting treatment, there is no periodic measurement or recognition of ineffectiveness. Rather, the full impact of hedge gains and losses will be recognized in the period in which hedged transactions impact earnings, regardless of whether or not economic mismatches exist in the hedging relationship.  Amounts reported in "Accumulated other comprehensive loss" related to derivatives designated as qualifying cash flow hedges will be reclassified to interest expense as interest payments are made on the Company's variable rate or fixed rate debt. During the next twelve months, the Company estimates that an additional $0.1 million will be reclassified to earnings as a decrease to "Interest expense", which primarily represents the difference between the fixed interest rate swap payments and the projected variable interest rate swap receipts.

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

The tables below present the effect of the Company's derivative financial instruments on the Condensed Consolidated Statements of Operations for the three and six months ended June 30, 2019 and 2018 (dollars in thousands):

Derivatives in Cash Flow Hedging Relationships	(Loss) Gain Recognized in OCI on Derivative					Location of Gain Reclassified from Accumulated	Net Gain Reclassified from Accumulated OCL into Interest Expense(1)
Three months ended June 30,	2019			2018		OCL into Income	2019		2018
Interest rate contracts	$	(5,426	)	$	5,720	Interest expense	$	578	$	555
Six months ended June 30,
Interest rate contracts	$	(7,882	)	$	6,552	Interest expense	$	1,323	$	748

^{(1) See the Condensed Consolidated Statements of Comprehensive Income for changes in accumulated other comprehensive loss as these changes are presented net of the allocation to noncontrolling interests.}

Derivatives Not Designated as Hedging Instruments	Location of Gain Recognized in	Gain Recognized in Earnings on Derivative
For the three months ended June 30,	Income on Derivative	2019		2018
Preferred stock embedded derivative	Other non-operating income	$	4,594	$	2,793
For the six months ended June 30,
Preferred stock embedded derivative	Other non-operating income	$	4,070	$	149

Credit-Risk-Related Contingent Features

Certain of the Company's derivative contracts contain a provision where the Company could be declared in default on its derivative obligations if repayment of the underlying indebtedness is accelerated by the lender due to the Company's default on the indebtedness. As of June 30, 2019, the Company had not breached the provisions of these agreements. If the provisions had been breached, the Company could have been required to settle its obligations under the agreements at the termination value of $4.2 million as of June 30, 2019.   Although the Company's derivative contracts are subject to master netting arrangements, which serve as credit mitigants to both the Company and its counterparties under certain situations, the Company does not net its derivative fair values or any existing rights or obligations to cash collateral in the Condensed Consolidated Balance Sheets.

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Shareholders' Equity of MAA

6 Months Ended

Jun. 30, 2019

Shareholders Equity Of M A A [Abstract]

Shareholders' Equity of MAA

8.Shareholders' Equity of MAA

As of June 30, 2019, 114,043,089 shares of common stock of MAA and 4,090,083 OP Units (excluding the OP Units held by MAA) were issued and outstanding, representing a total of 118,133,172 shares and units.  As of June 30, 2018, 113,808,292 shares of common stock of MAA and 4,135,668 OP Units (excluding the OP Units held by MAA) were outstanding, representing a total of 117,943,960 shares and units.  Options to purchase 60,442 shares of MAA's common stock were outstanding as of June 30, 2019, compared to 95,838 outstanding options as of June 30, 2018.  During the six months ended June 30, 2019 and 2018, MAA issued 20,718 shares and 12,600 shares, respectively, related to the exercise of stock options.  These exercises resulted in proceeds of $1.2 million and $0.6 million, respectively.

Preferred Stock

As of June 30, 2019, MAA had one outstanding series of cumulative redeemable preferred stock, which has the following characteristics:

Description	Outstanding Shares		Liquidation Preference(1)		Optional Redemption Date	Redemption Price (2)		Stated Dividend Yield			Approximate Dividend Rate
Series I		867,846	$	50.00	10/1/2026	$	50.00		8.50	%	$	4.25

^{(1) The total liquidation preference for the outstanding preferred stock is $43.4 million.}

^{(2) The redemption price is the price at which the preferred stock is redeemable, at MAA's option, for cash.}

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Partners' Capital of MAALP

6 Months Ended

Jun. 30, 2019

Partners Capital Notes [Abstract]

Partners' Capital of MAALP

9.Partners' Capital of MAALP

Common units of limited partnership interests in MAALP are represented by OP Units.  As of June 30, 2019, there were 118,133,172 OP Units outstanding, 114,043,089, or 96.5%, of which represent Class B OP Units (common units issued to or held by MAALP's general partner or any of its subsidiaries), which were owned by MAA, MAALP's general partner.  The remaining 4,090,083 OP Units were Class A OP Units owned by Class A limited partners.  As of June 30, 2018, there were 117,943,960 OP Units outstanding, 113,808,292, or 96.5%, of which were owned by MAA and 4,135,668 of which were owned by the Class A limited partners.

MAA, as the sole general partner of MAALP, has full, complete and exclusive discretion to manage and control the business of MAALP subject to the restrictions specifically contained within MAALP's agreement of limited partnership, or the Partnership Agreement.  Unless otherwise stated in the Partnership Agreement, 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 MAALP's assets; and distribution of MAALP's 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, MAALP may issue Class A OP Units and Class B OP Units.  Class A OP Units are any OP Units other than Class B OP Units, while Class B OP Units are those issued to or held by MAALP's general partner or any of its subsidiaries.  In general, the limited partners do not have the power to participate in the management or control of MAALP'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 (after allocations to preferred ownership interests) is allocated to the general partner and limited partners based on their respective ownership percentages of MAALP.  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 MAALP 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, MAALP generally redeems an equal number of Class B OP Units with similar terms held by MAA for a redemption price equal to the 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 MAALP.  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 NYSE 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 June 30, 2019, a total of 4,090,083 Class A OP Units were outstanding and redeemable for 4,090,083 shares of MAA common stock, with an approximate value of $481.6 million, based on the closing price of MAA’s common stock on June 28, 2019 of $117.76 per share.  At June 30, 2018, a total of 4,135,668 Class A OP Units were outstanding and redeemable for 4,135,668 shares of MAA common stock, with an approximate value of $416.3 million, based on the closing price of MAA’s common stock on June 29, 2018 of $100.67 per share.  MAALP pays the same per unit distributions in respect to the OP Units as the per share dividends MAA pays in respect to its common stock.

As of June 30, 2019, MAALP had one outstanding series of cumulative redeemable preferred units, or the MAALP Series I Preferred Units.  The MAALP Series I Preferred Units have the same characteristics as the MAA Series I preferred stock described in Note 8.  As of June 30, 2019, 867,846 units of the MAALP Series I Preferred Units were outstanding.

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Commitments and Contingencies

6 Months Ended

Jun. 30, 2019

Loss Contingency [Abstract]

Commitments and Contingencies

10.Commitments and Contingencies

Leases

The Company's leases include a ground lease expiring in 2074 related to one of its apartment communities and an office lease expiring in 2028 related to its corporate headquarters.  Both leases contain stated rent increases that generally compensate for the impact of inflation.  The Company also has other immaterial office and equipment operating leases.

The table below reconciles undiscounted cash flows for each of the first five years and total of the remaining years to the operating lease obligations recorded on the Condensed Consolidated Balance Sheet as of June 30, 2019 (in thousands):

	Operating Leases
2019	$	1,367
2020		2,744
2021		2,771
2022		2,767
2023		2,761
Thereafter		68,516
Total minimum lease payments		80,926
Net present value adjustments		(47,692	)
Operating lease obligations	$	33,234

Legal Proceedings

In June 2016, plaintiffs Cathi Cleven and Tara Cleven, on behalf of a purported class of plaintiffs, filed a complaint against MAA and the Operating Partnership in the United States District Court for the Western District of Texas, Austin Division.  In January 2017, Areli Arellano and Joe L. Martinez joined the lawsuit as additional plaintiffs.  The lawsuit alleges that the Company (but not Post Properties, Inc., or Post Properties) charged late fees at its Texas properties that violate Section 92.019 of the Texas Property Code, or Section 92.019, which provides that a landlord may not charge a tenant a late fee for failing to pay rent unless, among other things, the fee is a reasonable estimate of uncertain damages to the landlord that are incapable of precise calculation and result from the late payment of rent.  The plaintiffs are seeking monetary damages and attorneys' fees and costs.  In September 2018, the District Court certified a class proposed by the plaintiffs. Additionally, in September 2018, the District Court denied the Company’s motion for summary judgment and granted the plaintiffs’ motion for partial summary judgment.  Because the District Court certified a class prior to granting the plaintiffs’ motion for partial summary judgment, the District Court’s ruling applies to the entire class.  In October 2018, the Fifth Circuit Court of Appeals accepted the Company’s petition to review the District Court’s order granting class certification.  The Company also intends to appeal the District Court’s order granting plaintiff's motion for summary judgment to the Fifth Circuit Court of Appeals if permission to appeal is granted.  The Company will continue to vigorously defend the action and pursue such appeals.  Management estimates that the Company's maximum exposure in the lawsuit, given the class certification and summary judgment ruling, is $54.6 million, which includes both potential damages and attorneys' fees but excludes any prejudgment interest that may be awarded.

In April 2017, plaintiff Nathaniel Brown, on behalf of a purported class of plaintiffs, filed a complaint against the Operating Partnership, as the successor by merger to Post Properties' primary operating partnership, and MAA in the United States District Court for the Western District of Texas, Austin Division.  The lawsuit alleges that Post Properties (and, following the Post Properties merger in December 2016, the Operating Partnership) charged late fees at its Texas properties that violate Section 92.019.  The plaintiffs are seeking monetary damages and attorney's fees and costs.  In September 2018, the District Court certified a class proposed by the plaintiff.  Additionally, in September 2018, the District Court denied the Company’s motion for summary judgment and granted the plaintiff’s motion for partial summary judgment. Because the District Court certified a class prior to granting the plaintiff’s motion for partial summary judgment, the District Court’s ruling applies to the entire class.  In October 2018, the Fifth Circuit Court of Appeals accepted the Company's petition to review the District Court's order granting class certification. The Company also intends to appeal the District Court’s order granting plaintiff’s motion for summary judgment to the Fifth Circuit Court of Appeals if permission to appeal is granted.  The Company will continue to vigorously defend the action and pursue such appeals.  Management estimates that the Company's maximum exposure in the lawsuit, given the class certification and summary judgment ruling, is $8.4 million, which includes both potential damages and attorneys' fees but excludes any prejudgment interest that may be awarded.

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 does not currently believe that such matters, either individually or in the aggregate, will have a material adverse effect on the Company's financial condition, results of operations or cash flows in the event of a negative outcome.

Loss Contingencies

The outcomes of claims, disputes and legal proceedings 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 also accrues an estimate of defense costs expected to be incurred in connection with legal matters.  Management 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, management does not accrue the loss. However, if the loss (or an additional loss in excess of the accrual) is at least a reasonable possibility and material, then management 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 a statement to that effect 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 involves a series of complex judgments about future events.  Among the factors considered in this assessment, 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, management's experience in similar matters, the facts available to management at the time of assessment, and how the Company intends to respond, or has responded, to the proceeding or claim.  Management's assessment of these factors may change over time as individual proceedings or claims progress.  For matters where management 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 ultimately expected to be resolved through negotiation and settlement have not reached the point where management believes a reasonable estimate of loss, or range of loss, can be made.  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.

As of June 30, 2019 and December 31, 2018, the Company's accrual for loss contingencies relating to unresolved legal matters was $8.6 million and $8.7 million in the aggregate, respectively.  The loss contingencies are presented in "Accrued expenses and other liabilities" in the accompanying Condensed Consolidated Balance Sheets.

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Segment Information

6 Months Ended

Jun. 30, 2019

Notes To Financial Statements [Abstract]

Segment Information

11.Segment Information

As of June 30, 2019, the Company owned and operated 303 multifamily apartment communities in 17 different states from which it derived all significant sources of earnings and operating cash flows.  The Company views each consolidated apartment community as an operating segment. The Company's chief operating decision maker, which is the Company’s Chief Executive Officer, evaluates performance and determines resource allocations of each of the apartment communities on a Same Store and Non-Same Store and Other basis, as well as an individual apartment community basis. This is consistent with the aggregation criteria under GAAP as each of the apartment communities generally has similar economic characteristics, facilities, services, and tenants. The following reflects the two reportable segments for the Company:

• Same Store communities are communities that the Company has owned and have been stabilized for at least a full 12 months.

• Non-Same Store and Other includes recent acquisitions, communities in development or lease-up, communities that have been identified for disposition and communities that have incurred a significant casualty loss.  Also included in Non-Same Store and Other are non-multifamily activities.

On the first day of each calendar year, the Company determines the composition of its Same Store and Non-Same Store and Other reportable segments for that year as well as adjusts the previous year, which allows the Company to evaluate full period-over-period operating comparisons.  Properties in development or lease-up are added to the Same Store portfolio on the first day of the calendar year after it has 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 the Same Store portfolio.

The chief operating decision maker utilizes net operating income, or NOI, in evaluating the performance of its operating 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.  Management believes that NOI is a helpful tool in evaluating the operating performance of the segments because it measures the core operations of property performance by excluding corporate level expenses and other items not related to property operating performance.

Revenues and NOI for each reportable segment for the three and six months ended June 30, 2019 and 2018 were as follows (in thousands):

	Three months ended June 30,						Six months ended June 30,
	2019			2018			2019			2018
Revenues:
Same Store
Rental revenues	$	376,977		$	342,775		$	749,418		$	683,870
Reimbursable property revenues (1)		—			22,605			—			45,607
Other property revenues		3,632			3,349			6,731			6,223
Total Same Store revenues		380,609			368,729			756,149			735,700
Non-Same Store and Other
Rental revenues		26,602			20,400			52,101			38,345
Reimbursable property revenues (1)		—			591			—			1,276
Other property revenues		179			353			318			769
Total Non-Same Store and Other revenues		26,781			21,344			52,419			40,390
Total rental and other property revenues	$	407,390		$	390,073		$	808,568		$	776,090
Net Operating Income:
Same Store NOI	$	237,305		$	230,414		$	474,744		$	462,069
Non-Same Store and Other NOI		15,943			10,929			30,305			20,887
Total NOI		253,248			241,343			505,049			482,956
Depreciation and amortization		(123,944	)		(122,925	)		(246,733	)		(243,669	)
Property management expenses		(13,454	)		(11,396	)		(27,296	)		(24,276	)
General and administrative expenses		(10,598	)		(9,211	)		(23,751	)		(19,343	)
Merger and integration expenses		—			(2,826	)		—			(6,625	)
Interest expense		(45,936	)		(43,585	)		(91,636	)		(84,490	)
Gain (loss) on sale of depreciable real estate assets		—			2			(13	)		2
Gain on sale of non-depreciable real estate assets		297			2,761			9,260			2,911
Other non-operating income		4,775			8,032			5,710			5,691
Income tax expense		(682	)		(570	)		(1,323	)		(1,210	)
Income from real estate joint venture		435			356			832			854
Net income attributable to noncontrolling interests		(2,224	)		(2,174	)		(4,522	)		(3,975	)
Dividends to MAA Series I preferred shareholders		(922	)		(922	)		(1,844	)		(1,844	)
Net income available for MAA common shareholders	$	60,995		$	58,885		$	123,733		$	106,982

^{(1) As a result of the adoption of ASC Topic 842 referenced in Note 1, for the three months ended June 30, 2019, Same Store and Non-Same Store reimbursable property revenues of $23.1 million and $0.8 million, respectively, are reflected as rental revenues. For the six months ended June 30, 2019, Same Store and Non-Same Store reimbursable property revenues of $46.1 million and $1.6 million, respectively, are reflected as rental revenues.}

Assets for each reportable segment as of June 30, 2019 and December 31, 2018 were as follows (in thousands):

	June 30, 2019		December 31, 2018
Assets:
Same Store	$	9,849,840	$	9,991,538
Non-Same Store and Other		1,233,089		1,163,083
Corporate assets		191,901		169,160
Total assets	$	11,274,830	$	11,323,781

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Real Estate Acquisitions and Dispositions

6 Months Ended

Jun. 30, 2019

Real Estate [Abstract]

Real Estate Acquisitions and Dispositions

12.Real Estate Acquisitions and Dispositions

The following table reflects the Company's acquisition activity for the six months ended June 30, 2019:

Multifamily Acquisition (1)	Market	Units		Date Acquired
Novel Midtown	Phoenix, AZ		345	February 2019
Land Acquisition	Market	Acres		Date Acquired
North Orange Avenue - Outparcel	Orlando, FL		2	April 2019

^{(1) This pre-purchase multifamily community development is being developed through a joint venture with a local developer. The Company holds an 80.0% interest in the joint venture.}

The following table reflects the Company's disposition activity for the six months ended June 30, 2019:

Land Disposition	Market	Acres		Date Sold
Peachtree Road - Outparcel	Atlanta, GA		1	February 2019
Colonial Promenade - Outparcel	Huntsville, AL		4	April 2019
Commercial Disposition	Market	Sq Ft		Date Sold
Poplar Avenue Office	Memphis, TN		42,000	March 2019

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

6 Months Ended

Jun. 30, 2019

Basis Of Presentation And Principles Of Consolidation [Abstract]

Basis of Presentation and Principles of Consolidation

Basis of Presentation and Principles of Consolidation

The accompanying condensed consolidated financial statements have been prepared by the Company's 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 condensed 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, directly or indirectly, approximately 80% to 100% of all consolidated subsidiaries, including the Operating Partnership.  The condensed 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, 80% to 100% of all consolidated subsidiaries.  In management's 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.

The Company invests in entities which may qualify as variable interest entities, or VIEs, and MAALP is considered a 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.  MAALP is classified as a VIE, since the limited partners lack substantive kick-out rights and substantive participating rights.  The Company consolidates all VIEs for which it is the primary beneficiary and uses the equity method to account for investments that qualify as VIEs but for which it is not the primary beneficiary.  In determining whether the Company is the primary beneficiary of a VIE, management considers both 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.  The Company uses the equity method of accounting for its investments in entities for which the Company exercises significant influence, but does not have the ability to exercise control.  The factors considered in determining whether the Company has the ability to exercise control include ownership of voting interests and participatory rights of investors (see "Investments in Unconsolidated Affiliates" below).

Changes in Presentation

In an effort to simplify the Company's presentation of cash flows from financing activities within the condensed consolidated statements of cash flows, the Company combined "Repurchase of common stock"; "Debt prepayment and extinguishment costs"; "Proceeds from issuances of common shares"; and "Exercise of stock options" into one line, "Net change in other financing activities" within the cash flows from financing activities section.  No presentation changes were made to the cash flows from operating or investing activities sections of the condensed consolidated statements of cash flows. Prior year amounts have been changed to conform to the Company's current year presentation.  These changes in presentation had no effect on the Company's ending cash, cash equivalents and restricted cash balances and did not impact the classification of cash flows between operating, investing and financing activities.

Noncontrolling Interests

As of June 30, 2019, the Company had two types of noncontrolling interests with respect to its consolidated subsidiaries, (1) noncontrolling interests related to the common unitholders of its Operating Partnership (see below) and (2) noncontrolling interest related to its consolidated real estate entities (see "Investment in Consolidated Real Estate Entities" below).  The noncontrolling interests in the accompanying condensed consolidated financial statements relating to the limited partnership interests in the Operating Partnership are owned by the holders of the Class A OP Units. MAA is the sole general partner of the Operating Partnership and holds all of the outstanding Class B OP Units. Net income (after allocations to preferred ownership interests) is allocated to MAA and the noncontrolling interests based on their respective ownership percentages of the Operating Partnership. Issuance of additional Class A OP Units or Class B OP Units changes the ownership percentage of both the noncontrolling interests and MAA. The issuance of Class B OP Units generally occurs when MAA issues common stock and the issuance proceeds are contributed to the Operating Partnership in exchange for Class B OP Units equal to the number of shares of MAA's common stock issued. At each reporting period, the allocation between total MAA shareholders’ equity and noncontrolling interests is adjusted to account for the change in the respective percentage ownership of the underlying equity of the Operating Partnership. MAA’s Board of Directors established economic rights in respect to each Class A OP Unit that were equivalent to the economic rights in respect to each share of MAA common stock. See Note 9 for additional details.

Investments in Unconsolidated Affiliates

Through its investment in a limited liability company, or the Apartment LLC, the Company together with an institutional investor indirectly owns one apartment community, Post Massachusetts Avenue, located in Washington, D.C.  The Company owned a 35.0% equity interest in the unconsolidated real estate joint venture as of June 30, 2019 and provides property and asset management services to the Apartment LLC for which it earns fees. The joint venture was determined to be a VIE, but the Company is not designated as the primary beneficiary.  As a result, the Company accounts for its investment in the Apartment LLC using the equity method of accounting as the Company is able to exert significant influence over the joint venture but does not have a controlling interest.  As of June 30, 2019, the Company's investment in the Apartment LLC totaled $44.0 million.

In September 2017, a subsidiary of the Operating Partnership invested in a limited partnership, Real Estate Technology Ventures, L.P. As of June 30, 2019, the Operating Partnership indirectly owned 20.7% of the limited partnership. The limited partnership was determined to be a VIE, but the Company is not designated as the primary beneficiary. As a result, the Company accounts for its investment in the limited partnership using the equity method of accounting as the investment is considered more than minor. As of June 30, 2019, the Company's investment in the limited partnership totaled $6.2 million and is included in "Other assets" in the accompanying Condensed Consolidated Balance Sheet. As of June 30, 2019, the Company was committed until September 2022 to make additional capital contributions totaling $10.9 million if and when called by the general partner of the limited partnership.

Investments in Consolidated Real Estate Entities

The Company owns a 92.5% equity interest in a consolidated real estate entity that developed, constructed and operates a 359-unit apartment community in Denver, Colorado. The owner of the remaining 7.5% equity interest, a private real estate company, was generally responsible for the development and construction of the community, which was completed during the year ended December 31, 2018.  The Company will continue to operate and manage the community.  The entity was determined to be a VIE with the Company designated as the primary beneficiary.  As a result, the accounts of the entity are consolidated by the Company.  As of June 30, 2019, the consolidated assets and liabilities included buildings and improvements and other, net of accumulated depreciation of $69.1 million; land of $14.9 million; and accrued expenses and other liabilities of $0.8 million.

During the first quarter of 2019, the Company acquired an 80.0% equity interest in a consolidated real estate entity that will develop, construct and operate an apartment community in Phoenix, Arizona.  The entity acquired the land site and initiated development of the apartment community in the first quarter of 2019.  The owner of the remaining 20.0% equity interest, a private real estate company, is responsible for the development and construction of the community. The Company will lease-up the property when units are delivered and operate and manage the community upon its completion.  The entity was determined to be a VIE with the Company designated as the primary beneficiary.  As a result, the accounts of the entity are consolidated by the Company.  As of June 30, 2019, the consolidated assets and liabilities included development and capital improvements in process of $8.7 million; land of $9.4 million; and accrued expenses and other liabilities of $2.0 million.

Fair Value Measurements

The Company applies the guidance in Accounting Standards Codification, or ASC, Topic 820, Fair Value Measurements and Disclosures, to the valuation of real estate assets recorded at fair value, if any; to its impairment valuation analysis of real estate assets; to its disclosure of the fair value of financial instruments, principally indebtedness; and to its derivative financial instruments.  Fair value disclosures required under ASC Topic 820 are summarized in Note 7 utilizing the following hierarchy:

Level 1 - Quoted prices in active markets for identical assets or liabilities that are accessible at the measurement date.

Level 2 - Inputs other than quoted prices that are observable for the asset or liability, either directly or indirectly.

Level 3 - Unobservable inputs for the assets or liability.

Leases

In 2016, the Financial Accounting Standard Board, or FASB, issued Accounting Standard Update, or ASU, 2016-02, Leases (Topic 842), which established new principles, presentation and disclosure requirements for lease accounting for both the lessee and lessor. On January 1, 2019, management adopted ASU 2016-02 using the modified retrospective transition approach with an effective date as of the adoption date and elected certain practical expedients allowed by the new standard. Under the new standard, lessors are required to account for leases in a similar manner as previous lease accounting guidance but aligned with the newly adopted revenue recognition standard.  Lessees are required to record most leases on the balance sheet and recognize lease expense in the income statement in a manner similar to previous practice. The new standard requires a lessee to recognize a lease liability for the obligation to make lease payments and a right-of-use asset for the right to use the underlying asset for all leases with terms of more than twelve months. Expenses related to leases determined to be operating leases are recognized on a straight-line basis, while expenses related to leases determined to be financing leases are recognized based on an effective interest method in which interest and amortization are presented separately in the income statement.

Comparative periods presented in this Quarterly Report on Form 10-Q continue to apply guidance in ASC Topic 840, Leases, and have not been recast as the Company adopted the new standard using the modified retrospective transition approach effective as of January 1, 2019. The adoption of the new lease standard has not resulted in a significant change in the accounting for the Company’s rental revenues as the Company's residential, retail and commercial leases, where it is the lessor, will continue to be accounted for as operating leases. Management has elected available practical expedients that provide lessors an option not to separate lease and non-lease components when certain criteria are met, and instead, allow for those components to be accounted for as a single lease component. Thus, beginning with the effective date of the adoption of the new standard, January 1, 2019, rental revenues and non-lease reimbursable property revenues meet the criteria to be aggregated into a single lease component and are reported in the line item, "Rental revenues", as presented in the disaggregation of the Company's revenues in Note 11.

The Company is the lessee under certain ground, office, equipment and other operating leases. Based on its election of the package of practical expedients provided in ASU 2016-02, the Company did not reassess the classification of existing leases with its adoption of ASC Topic 842.  The Company’s existing leases as of January 1, 2019 will continue to be accounted for as operating leases; however, if contracts are modified subsequent to the adoption of ASC Topic 842, the Company will be required to reassess the contracts using guidance provided under ASC Topic 842.  The Company recognized total right-of-use assets of $54.3 million within "Other assets" and related lease obligations of $33.6 million within "Accrued expenses and other liabilities" on its Condensed Consolidated Balance Sheets for leases in effect as of January 1, 2019.  As of June 30, 2019, the balance of total right-of-use assets within “Other assets” was $53.5 million, and the balance of related lease obligations within “Accrued expenses and other liabilities” was $33.2 million.  As most leases do not provide a readily determinable implicit rate to discount future minimum lease payments to present value, management estimated the Company's incremental borrowing rate based on information available as of the date of adoption and based on the remaining lease terms as of the date of initial application.  Operating leases recognized upon adoption had a weighted-average remaining lease term of approximately 33 years and a weighted-average discount rate of approximately 4.4%.  Operating leases as of June 30, 2019 have a weighted-average remaining lease term of approximately 32 years and a weighted-average discount rate of approximately 4.4%.  Lease expense for the six months ended June 30, 2019, recognized under ASC Topic 842, continued to be immaterial for the Company and was recognized in a similar manner as compared to the six months ended June 30, 2018. Cash paid for amounts included in the measurement of operating lease liabilities during the six months ended June 30, 2019 was also immaterial.

Revenue Recognition

The Company primarily leases multifamily residential apartments under operating leases generally due on a monthly basis with terms of approximately one year or less, which are recorded as operating leases.  Rental revenues are recognized in accordance with ASC Topic 842 using a method that represents a straight-line basis over the term of the lease. In addition, in circumstances where a lease incentive is provided to tenants, the incentive is recognized as a reduction of rental revenues on a straight-line basis over the reasonably assured lease term.  Rental revenues represent approximately 93% of the Company's total revenues and include gross rents charged less adjustments for concessions and bad debt.  Approximately 6% of the Company's total revenues represents reimbursable property revenues from its tenants for utility reimbursements, which are generally recognized and due on a monthly basis as tenants obtain control of the service over the term of the lease.  The remaining 1% of the Company's total revenues represents other non-lease revenues primarily driven by nonrefundable fees and commissions.

With the adoption of ASC Topic 842, rental revenues and non-lease reimbursable property revenues meet the criteria to be aggregated into a single lease component and to be reported in a single line, while non-lease reimbursable property revenues recognized prior to January 1, 2019 will continue to be reported as non-lease revenues and recognized in accordance with ASC Topic 606, Revenue Recognition. The guidance requires that revenue recognized outside of the scope of ASC Topic 842 is recognized when a customer obtains control of promised goods or services in an amount that reflects the consideration the entity expects to receive in exchange for those goods or services.

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Earnings Per Common Share of MAA (Tables)

6 Months Ended

Jun. 30, 2019

Earnings Per Common Share Of M A A [Abstract]

Schedule of Computation of Diluted Earnings per Share

For the three and six months ended June 30, 2019 and 2018, MAA's diluted earnings per share was computed using the treasury stock method as presented below (dollars and shares in thousands, except per share amounts):

	Three months ended June 30,						Six months ended June 30,
	2019			2018			2019			2018
Calculation of Earnings per Common Share - basic
Net income	$	64,141		$	61,981		$	130,099		$	112,801
Net income attributable to noncontrolling interests		(2,224	)		(2,174	)		(4,522	)		(3,975	)
Unvested restricted stock (allocation of earnings)		(96	)		(78	)		(184	)		(142	)
Preferred dividends		(922	)		(922	)		(1,844	)		(1,844	)
Net income available for common shareholders, adjusted	$	60,899		$	58,807		$	123,549		$	106,840
Weighted average common shares - basic		113,838			113,646			113,783			113,595
Earnings per common share - basic	$	0.53		$	0.52		$	1.09		$	0.94
Calculation of Earnings per Common Share - diluted
Net income	$	64,141		$	61,981		$	130,099		$	112,801
Net income attributable to noncontrolling interests (1)		(2,224	)		(2,174	)		(4,522	)		(3,975	)
Preferred dividends		(922	)		(922	)		(1,844	)		(1,844	)
Net income available for common shareholders, adjusted	$	60,995		$	58,885		$	123,733		$	106,982
Weighted average common shares - basic		113,838			113,646			113,783			113,595
Effect of dilutive securities		249			207			211			174
Weighted average common shares - diluted		114,087			113,853			113,994			113,769
Earnings per common share - diluted	$	0.53		$	0.52		$	1.09		$	0.94

^{(1) For the three months ended June 30, 2019 and June 30, 2018, 4.1 million OP Units and their related income are not included in the diluted earnings per share calculations as they are not dilutive. For the six months ended June 30, 2019 and June 30, 2018, 4.1 million OP Units and 4.2 million OP Units, respectively, and their related income are not included in the diluted earnings per share calculations as they are not dilutive.}

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Earnings Per OP Unit of MAALP (Tables)

6 Months Ended

Jun. 30, 2019

Earnings Per O P Unitof M A A L P [Abstract]

Schedule of Diluted Earnings per Common Unit

For the three and six months ended June 30, 2019 and 2018, MAA's diluted earnings per common unit was computed using the treasury stock method as presented below (dollars and units in thousands, except per unit amounts):

	Three months ended June 30,						Six months ended June 30,
	2019			2018			2019			2018
Calculation of Earnings per Common Unit - basic
Net income	$	64,141		$	61,981		$	130,099		$	112,801
Unvested restricted stock (allocation of earnings)		(96	)		(78	)		(184	)		(142	)
Preferred unit distributions		(922	)		(922	)		(1,844	)		(1,844	)
Net income available for common unitholders, adjusted	$	63,123		$	60,981		$	128,071		$	110,815
Weighted average common units - basic		117,935			117,783			117,886			117,754
Earnings per common unit - basic	$	0.53		$	0.52		$	1.09		$	0.94
Calculation of Earnings per Common Unit - diluted
Net income	$	64,141		$	61,981		$	130,099		$	112,801
Preferred unit distributions		(922	)		(922	)		(1,844	)		(1,844	)
Net income available for common unitholders, adjusted	$	63,219		$	61,059		$	128,255		$	110,957
Weighted average common units - basic		117,935			117,783			117,886			117,754
Effect of dilutive securities		249			207			211			174
Weighted average common units - diluted		118,184			117,990			118,097			117,928
Earnings per common unit - diluted	$	0.53		$	0.52		$	1.09		$	0.94

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MAA Equity (Tables)

6 Months Ended

Jun. 30, 2019

M A A Equity [Abstract]

Summary of Changes in Total Equity and its Components

Changes in total equity and its components for the three months ended June 30, 2019 and 2018 were as follows (dollars in thousands):

	Mid-America Apartment Communities, Inc. Shareholders' Equity
	Preferred Stock		Common Stock		Additional Paid-In Capital			Accumulated Distributions in Excess of Net Income			Accumulated Other Comprehensive Loss			Noncontrolling Interests - Operating Partnership			Noncontrolling Interests - Consolidated Real Estate Entities		Total Equity
EQUITY BALANCE MARCH 31, 2019	$	9	$	1,137	$	7,141,544		$	(1,037,268	)	$	(3,300	)	$	218,011		$	5,166	$	6,325,299
Net income		—		—		—			61,917			—			2,224			—		64,141
Other comprehensive loss - derivative    instruments		—		—		—			—			(5,792	)		(212	)		—		(6,004	)
Issuance and registration of common shares		—		1		(520	)		—			—			—			—		(519	)
Shares repurchased and retired		—		—		(701	)		—			—			—			—		(701	)
Exercise of stock options		—		—		1,032			—			—			—			—		1,032
Shares issued in exchange for common units		—		—		821			—			—			(821	)		—		—
Shares issued in exchange for redeemable stock		—		—		575			—			—			—			—		575
Redeemable stock fair market value adjustment		—		—		—			(835	)		—			—			—		(835	)
Adjustment for noncontrolling interests in    Operating Partnership		—		—		(127	)		—			—			127			—		—
Amortization of unearned compensation		—		—		3,452			—			—			—			—		3,452
Dividends on preferred stock		—		—		—			(922	)		—			—			—		(922	)
Dividends on common stock  ($0.9600 per share)		—		—		—			(109,557	)		—			—			—		(109,557	)
Dividends on noncontrolling interests units    ($0.9600 per unit)		—		—		—			—			—			(3,925	)		—		(3,925	)
Contribution from noncontrolling interest		—		—		—			—			—			—			490		490
EQUITY BALANCE JUNE 30, 2019	$	9	$	1,138	$	7,146,076		$	(1,086,665	)	$	(9,092	)	$	215,404		$	5,656	$	6,272,526

	Mid-America Apartment Communities, Inc. Shareholders' Equity
	Preferred Stock		Common Stock		Additional Paid-In Capital			Accumulated Distributions in Excess of Net Income			Accumulated Other Comprehensive Income		Noncontrolling Interests - Operating Partnership			Noncontrolling Interests - Consolidated Real Estate Entities		Total Equity
EQUITY BALANCE MARCH 31, 2018	$	9	$	1,135	$	7,127,740		$	(840,642	)	$	3,000	$	226,815		$	2,306	$	6,520,363
Net income		—		—		—			59,807			—		2,174			—		61,981
Other comprehensive income - derivative instruments		—		—		—			—			4,986		179			—		5,165
Issuance and registration of common shares		—		—		(341	)		—			—		—			—		(341	)
Shares issued in exchange for common units		—		1		337			—			—		(338	)		—		—
Redeemable stock fair market value adjustment		—		—		—			(892	)		—		—			—		(892	)
Adjustment for noncontrolling interests in    Operating Partnership		—		—		203			—			—		(203	)		—		—
Amortization of unearned compensation		—		—		2,963			—			—		—			—		2,963
Dividends on preferred stock		—		—		—			(922	)		—		—			—		(922	)
Dividends on common stock ($0.9225 per share)		—		—		—			(105,023	)		—		—			—		(105,023	)
Dividends on noncontrolling interests units    ($0.9225 per unit)		—		—		—			—			—		(3,814	)		—		(3,814	)
EQUITY BALANCE JUNE 30, 2018	$	9	$	1,136	$	7,130,902		$	(887,672	)	$	7,986	$	224,813		$	2,306	$	6,479,480

Changes in total equity and its components for the six months ended June 30, 2019 and 2018 were as follows (dollars in thousands):

	Mid-America Apartment Communities, Inc. Shareholders' Equity
	Preferred Stock		Common Stock		Additional Paid-In Capital			Accumulated Distributions in Excess of Net Income			Accumulated Other Comprehensive Loss			Noncontrolling Interests - Operating Partnership			Noncontrolling Interests - Consolidated Real Estate Entities		Total Equity
EQUITY BALANCE DECEMBER 31, 2018	$	9	$	1,136	$	7,138,170		$	(989,263	)	$	(212	)	$	220,043		$	2,306	$	6,372,189
Net income		—		—		—			125,577			—			4,522			—		130,099
Other comprehensive loss - derivative    instruments		—		—		—			—			(8,880	)		(325	)		—		(9,205	)
Issuance and registration of common shares		—		2		608			—			—			—			—		610
Shares repurchased and retired		—		—		(3,724	)		—			—			—			—		(3,724	)
Exercise of stock options		—		—		1,240			—			—			—			—		1,240
Shares issued in exchange for common units		—		—		1,157			—			—			(1,157	)		—		—
Shares issued in exchange for redeemable stock		—		—		575			—			—			—			—		575
Redeemable stock fair market value adjustment		—		—		—			(2,186	)		—			—			—		(2,186	)
Adjustment for noncontrolling interests in    Operating Partnership		—		—		(187	)		—			—			187			—		—
Amortization of unearned compensation		—		—		8,237			—			—			—			—		8,237
Dividends on preferred stock		—		—		—			(1,844	)		—			—			—		(1,844	)
Dividends on common stock  ($1.9200 per share)		—		—		—			(218,949	)		—			—			—		(218,949	)
Dividends on noncontrolling interests units    ($1.9200 per unit)		—		—		—			—			—			(7,866	)		—		(7,866	)
Contribution from noncontrolling interest		—		—		—			—			—			—			3,350		3,350
EQUITY BALANCE JUNE 30, 2019	$	9	$	1,138	$	7,146,076		$	(1,086,665	)	$	(9,092	)	$	215,404		$	5,656	$	6,272,526

	Mid-America Apartment Communities, Inc. Shareholders' Equity
	Preferred Stock		Common Stock		Additional Paid-In Capital			Accumulated Distributions in Excess of Net Income			Accumulated Other Comprehensive Income		Noncontrolling Interests - Operating Partnership			Noncontrolling Interests - Consolidated Real Estate Entities		Total Equity
EQUITY BALANCE DECEMBER 31, 2017	$	9	$	1,134	$	7,121,112		$	(784,500	)	$	2,157	$	231,676		$	2,306	$	6,573,894
Net income		—		—		—			108,826			—		3,975			—		112,801
Other comprehensive income - derivative instruments		—		—		—			—			5,596		208			—		5,804
Issuance and registration of common shares		—		1		(237	)		—			—		—			—		(236	)
Shares repurchased and retired		—		—		(2,912	)		—			—		—			—		(2,912	)
Exercise of stock options		—		—		625			—			—		—					625
Shares issued in exchange for common units		—		1		3,117			—			—		(3,118	)		—		—
Shares issued in exchange for redeemable stock		—		—		1,915			—			—		—			—		1,915
Redeemable stock fair market value adjustment		—		—		—			73			—		—			—		73
Adjustment for noncontrolling interests in    Operating Partnership		—		—		295			—			—		(295	)		—		—
Cumulative adjustment due to adoption of ASU    2017-12				—		—			(233	)		233		—			—		—
Amortization of unearned compensation		—		—		6,987			—			—		—			—		6,987
Dividends on preferred stock		—		—		—			(1,844	)		—		—			—		(1,844	)
Dividends on common stock ($1.8450 per share)		—		—		—			(209,994	)		—		—			—		(209,994	)
Dividends on noncontrolling interests units    ($1.8450 per unit)		—		—		—			—			—		(7,633	)		—		(7,633	)
EQUITY BALANCE JUNE 30, 2018	$	9	$	1,136	$	7,130,902		$	(887,672	)	$	7,986	$	224,813		$	2,306	$	6,479,480

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MAALP Capital (Tables)

6 Months Ended

Jun. 30, 2019

M A A L P Capital [Abstract]

Summary of Changes in Total Capital and its Components

Changes in total capital and its components for the three months ended June 30, 2019 and 2018 were as follows (dollars in thousands):

	Mid-America Apartments, L.P. Unitholders' Capital
	Limited Partner			General Partner			Preferred Units			Accumulated Other Comprehensive Loss			Noncontrolling Interests- Consolidated Real Estate Entities		Total Partnership Capital
CAPITAL BALANCE MARCH 31, 2019	$	218,011		$	6,038,625		$	66,840		$	(3,362	)	$	5,166	$	6,325,280
Net income		2,224			60,995			922			—			—		64,141
Other comprehensive loss - derivative instruments		—			—			—			(6,004	)		—		(6,004	)
Issuance of units		—			(519	)		—			—			—		(519	)
Units repurchased and retired		—			(701	)		—			—			—		(701	)
Exercise of unit options		—			1,032			—			—			—		1,032
General partnership units issued in exchange for limited partnership units		(821	)		821			—			—			—		—
Units issued in exchange for redeemable units		—			575			—			—			—		575
Redeemable units fair market value adjustment		—			(835	)		—			—			—		(835	)
Adjustment for limited partners' capital at redemption value		(85	)		85			—			—			—		—
Amortization of unearned compensation		—			3,452			—			—			—		3,452
Distributions to preferred unitholders		—			—			(922	)		—			—		(922	)
Distributions to common unitholders ($0.9600 per unit)		(3,925	)		(109,557	)		—			—			—		(113,482	)
Contribution from noncontrolling interest		—			—			—			—			490		490
CAPITAL BALANCE JUNE 30, 2019	$	215,404		$	5,993,973		$	66,840		$	(9,366	)	$	5,656	$	6,272,507

	Mid-America Apartments, L.P. Unitholders' Capital
	Limited Partner			General Partner			Preferred Units			Accumulated Other Comprehensive Income		Noncontrolling Interests - Consolidated Real Estate Entities		Total Partnership Capital
CAPITAL BALANCE MARCH 31, 2018	$	226,815		$	6,221,216		$	66,840		$	3,167	$	2,306	$	6,520,344
Net income		2,174			58,885			922			—		—		61,981
Other comprehensive income - derivative instruments		—			—			—			5,165		—		5,165
Issuance of units		—			(341	)		—			—		—		(341	)
General partnership units issued in exchange for limited partnership units		(338	)		338			—			—		—		—
Redeemable units fair market value adjustment		—			(892	)		—			—		—		(892	)
Adjustment for limited partners' capital at redemption value		(24	)		24			—			—		—		—
Amortization of unearned compensation		—			2,963			—			—		—		2,963
Distributions to preferred unitholders		—			—			(922	)		—		—		(922	)
Distributions to common unitholders ($0.9225 per unit)		(3,814	)		(105,023	)		—			—		—		(108,837	)
CAPITAL BALANCE JUNE 30, 2018	$	224,813		$	6,177,170		$	66,840		$	8,332	$	2,306	$	6,479,461

Changes in total capital and its components for the six months ended June 30, 2019 and 2018 were as follows (dollars in thousands):

	Mid-America Apartments, L.P. Unitholders' Capital
	Limited Partner			General Partner			Preferred Units			Accumulated Other Comprehensive Loss			Noncontrolling Interests- Consolidated Real Estate Entities		Total Partnership Capital
CAPITAL BALANCE DECEMBER 31, 2018	$	220,043		$	6,083,142		$	66,840		$	(161	)	$	2,306	$	6,372,170
Net income		4,522			123,733			1,844			—			—		130,099
Other comprehensive loss - derivative instruments		—			—			—			(9,205	)		—		(9,205	)
Issuance of units		—			610			—			—			—		610
Units repurchased and retired		—			(3,724	)		—			—			—		(3,724	)
Exercise of unit options		—			1,240			—			—			—		1,240
General partnership units issued in exchange for limited partnership units		(1,157	)		1,157			—			—			—		—
Units issued in exchange for redeemable units		—			575			—			—			—		575
Redeemable units fair market value adjustment		—			(2,186	)		—			—			—		(2,186	)
Adjustment for limited partners' capital at redemption value		(138	)		138			—			—			—		—
Amortization of unearned compensation		—			8,237			—			—			—		8,237
Distributions to preferred unitholders		—			—			(1,844	)		—			—		(1,844	)
Distributions to common unitholders ($1.9200 per unit)		(7,866	)		(218,949	)		—			—			—		(226,815	)
Contribution from noncontrolling interest		—			—			—			—			3,350		3,350
CAPITAL BALANCE JUNE 30, 2019	$	215,404		$	5,993,973		$	66,840		$	(9,366	)	$	5,656	$	6,272,507

	Mid-America Apartments, L.P. Unitholders' Capital
	Limited Partner			General Partner			Preferred Units			Accumulated Other Comprehensive Income		Noncontrolling Interests - Consolidated Real Estate Entities		Total Partnership Capital
CAPITAL BALANCE DECEMBER 31, 2017	$	231,676		$	6,270,758		$	66,840		$	2,295	$	2,306	$	6,573,875
Net income		3,975			106,982			1,844			—		—		112,801
Other comprehensive income - derivative instruments		—			—			—			5,804		—		5,804
Issuance of units		—			(236	)		—			—		—		(236	)
Units repurchased and retired		—			(2,912	)		—			—		—		(2,912	)
Exercise of unit options		—			625			—			—		—		625
General partnership units issued in exchange for limited partnership units		(3,118	)		3,118			—			—		—		—
Units issued in exchange for redeemable units		—			1,915			—			—		—		1,915
Redeemable units fair market value adjustment		—			73			—			—		—		73
Adjustment for limited partners' capital at redemption value		(87	)		87			—			—		—		—
Cumulative adjustment due to adoption of ASU 2017-12		—			(233	)		—			233		—		—
Amortization of unearned compensation		—			6,987			—			—		—		6,987
Distributions to preferred unitholders		—			—			(1,844	)		—		—		(1,844	)
Distributions to common unitholders ($1.8450 per unit)		(7,633	)		(209,994	)		—			—		—		(217,627	)
CAPITAL BALANCE JUNE 30, 2018	$	224,813		$	6,177,170		$	66,840		$	8,332	$	2,306	$	6,479,461

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Borrowings (Tables)

6 Months Ended

Jun. 30, 2019

Debt Disclosure [Abstract]

Summary of Outstanding Debt

The following table summarizes the Company's outstanding debt as of June 30, 2019 (dollars in thousands):

	Balance			Weighted Average Effective Rate			Weighted Average Contract Maturity
Unsecured debt
Variable rate revolving credit facility	$	—			—			—
Variable rate commercial paper program		367,000			2.7	%	7/16/2019
Fixed rate senior notes		2,942,000			4.0	%	11/26/2025
Term loans fixed with swaps		300,000			2.3	%	3/1/2022
Variable rate term loans		300,000			3.4	%	8/29/2020
Debt issuance costs, discounts and fair market value adjustments		(29,474	)
Total unsecured debt	$	3,879,526			3.7	%
Fixed rate secured debt
Individual property mortgages	$	663,764			4.5	%	5/17/2036
Debt issuance costs and fair market value adjustments		(3,301	)
Total secured debt	$	660,463			4.5	%
Total outstanding debt	$	4,539,989			3.8	%

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Financial Instruments and Derivatives (Tables)

6 Months Ended

Jun. 30, 2019

Fair Value Disclosures [Abstract]

Effect of Derivative Instruments on Consolidated Statement of Operations

The tables below present the effect of the Company's derivative financial instruments on the Condensed Consolidated Statements of Operations for the three and six months ended June 30, 2019 and 2018 (dollars in thousands):

Derivatives in Cash Flow Hedging Relationships	(Loss) Gain Recognized in OCI on Derivative					Location of Gain Reclassified from Accumulated	Net Gain Reclassified from Accumulated OCL into Interest Expense(1)
Three months ended June 30,	2019			2018		OCL into Income	2019		2018
Interest rate contracts	$	(5,426	)	$	5,720	Interest expense	$	578	$	555
Six months ended June 30,
Interest rate contracts	$	(7,882	)	$	6,552	Interest expense	$	1,323	$	748

^{(1) See the Condensed Consolidated Statements of Comprehensive Income for changes in accumulated other comprehensive loss as these changes are presented net of the allocation to noncontrolling interests.}

Derivatives Not Designated as Hedging Instruments	Location of Gain Recognized in	Gain Recognized in Earnings on Derivative
For the three months ended June 30,	Income on Derivative	2019		2018
Preferred stock embedded derivative	Other non-operating income	$	4,594	$	2,793
For the six months ended June 30,
Preferred stock embedded derivative	Other non-operating income	$	4,070	$	149

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Shareholders' Equity of MAA (Tables)

6 Months Ended

Jun. 30, 2019

Shareholders Equity Of M A A [Abstract]

Schedule of Cumulative Redeemable Preferred Stock

As of June 30, 2019, MAA had one outstanding series of cumulative redeemable preferred stock, which has the following characteristics:

Description	Outstanding Shares		Liquidation Preference(1)		Optional Redemption Date	Redemption Price (2)		Stated Dividend Yield			Approximate Dividend Rate
Series I		867,846	$	50.00	10/1/2026	$	50.00		8.50	%	$	4.25

^{(1) The total liquidation preference for the outstanding preferred stock is $43.4 million.}

^{(2) The redemption price is the price at which the preferred stock is redeemable, at MAA's option, for cash.}

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Commitments and Contingencies (Tables)

6 Months Ended

Jun. 30, 2019

Loss Contingency [Abstract]

Schedule of Operating Lease Obligations

The table below reconciles undiscounted cash flows for each of the first five years and total of the remaining years to the operating lease obligations recorded on the Condensed Consolidated Balance Sheet as of June 30, 2019 (in thousands):

	Operating Leases
2019	$	1,367
2020		2,744
2021		2,771
2022		2,767
2023		2,761
Thereafter		68,516
Total minimum lease payments		80,926
Net present value adjustments		(47,692	)
Operating lease obligations	$	33,234

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Segment Information (Tables)

6 Months Ended

Jun. 30, 2019

Notes To Financial Statements [Abstract]

Revenues and NOI for Reportable Segment

Revenues and NOI for each reportable segment for the three and six months ended June 30, 2019 and 2018 were as follows (in thousands):

	Three months ended June 30,						Six months ended June 30,
	2019			2018			2019			2018
Revenues:
Same Store
Rental revenues	$	376,977		$	342,775		$	749,418		$	683,870
Reimbursable property revenues (1)		—			22,605			—			45,607
Other property revenues		3,632			3,349			6,731			6,223
Total Same Store revenues		380,609			368,729			756,149			735,700
Non-Same Store and Other
Rental revenues		26,602			20,400			52,101			38,345
Reimbursable property revenues (1)		—			591			—			1,276
Other property revenues		179			353			318			769
Total Non-Same Store and Other revenues		26,781			21,344			52,419			40,390
Total rental and other property revenues	$	407,390		$	390,073		$	808,568		$	776,090
Net Operating Income:
Same Store NOI	$	237,305		$	230,414		$	474,744		$	462,069
Non-Same Store and Other NOI		15,943			10,929			30,305			20,887
Total NOI		253,248			241,343			505,049			482,956
Depreciation and amortization		(123,944	)		(122,925	)		(246,733	)		(243,669	)
Property management expenses		(13,454	)		(11,396	)		(27,296	)		(24,276	)
General and administrative expenses		(10,598	)		(9,211	)		(23,751	)		(19,343	)
Merger and integration expenses		—			(2,826	)		—			(6,625	)
Interest expense		(45,936	)		(43,585	)		(91,636	)		(84,490	)
Gain (loss) on sale of depreciable real estate assets		—			2			(13	)		2
Gain on sale of non-depreciable real estate assets		297			2,761			9,260			2,911
Other non-operating income		4,775			8,032			5,710			5,691
Income tax expense		(682	)		(570	)		(1,323	)		(1,210	)
Income from real estate joint venture		435			356			832			854
Net income attributable to noncontrolling interests		(2,224	)		(2,174	)		(4,522	)		(3,975	)
Dividends to MAA Series I preferred shareholders		(922	)		(922	)		(1,844	)		(1,844	)
Net income available for MAA common shareholders	$	60,995		$	58,885		$	123,733		$	106,982

^{(1) As a result of the adoption of ASC Topic 842 referenced in Note 1, for the three months ended June 30, 2019, Same Store and Non-Same Store reimbursable property revenues of $23.1 million and $0.8 million, respectively, are reflected as rental revenues. For the six months ended June 30, 2019, Same Store and Non-Same Store reimbursable property revenues of $46.1 million and $1.6 million, respectively, are reflected as rental revenues.}

Assets for Reportable Segment

Assets for each reportable segment as of June 30, 2019 and December 31, 2018 were as follows (in thousands):

	June 30, 2019		December 31, 2018
Assets:
Same Store	$	9,849,840	$	9,991,538
Non-Same Store and Other		1,233,089		1,163,083
Corporate assets		191,901		169,160
Total assets	$	11,274,830	$	11,323,781

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Real Estate Acquisitions and Dispositions (Tables)

6 Months Ended

Jun. 30, 2019

Real Estate [Abstract]

Schedule of Real Estate Asset Acquisitions and Dispositions

The following table reflects the Company's acquisition activity for the six months ended June 30, 2019:

Multifamily Acquisition (1)	Market	Units		Date Acquired
Novel Midtown	Phoenix, AZ		345	February 2019
Land Acquisition	Market	Acres		Date Acquired
North Orange Avenue - Outparcel	Orlando, FL		2	April 2019

^{(1) This pre-purchase multifamily community development is being developed through a joint venture with a local developer. The Company holds an 80.0% interest in the joint venture.}

The following table reflects the Company's disposition activity for the six months ended June 30, 2019:

Land Disposition	Market	Acres		Date Sold
Peachtree Road - Outparcel	Atlanta, GA		1	February 2019
Colonial Promenade - Outparcel	Huntsville, AL		4	April 2019
Commercial Disposition	Market	Sq Ft		Date Sold
Poplar Avenue Office	Memphis, TN		42,000	March 2019

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Basis of Presentation and Principles of Consolidation and Significant Accounting Policies - Additional Information (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2019 USD ($) ft² Property Community State ApartmentUnit shares	Jun. 30, 2018 shares	Jun. 30, 2021 Property	Dec. 31, 2020 Property	Jun. 30, 2020 Property	Dec. 31, 2019 Property	Jan. 01, 2019 USD ($)	Dec. 31, 2018 USD ($) shares
Real Estate Properties [Line Items]
General Partners' Capital Account, Units Outstanding | shares	114,043,089	113,808,292
Limited Liability Company (LLC) or Limited Partnership (LP), Managing Member or General Partner, Ownership Interest	96.50%	96.50%
Number of owned or owned interests of apartment communities | Property	303
Development and capital improvements in progress	$ 97,526							$ 59,506
Number of States in which Entity Operates | State	17
Buildings, Improvements, and Other	$ 11,775,716							11,670,216
Land	1,883,960							1,868,828
Accrued expenses and other liabilities	450,212							$ 413,850
Operating Lease, Right-of-Use Asset	53,500
Operating Lease, Liability	$ 33,234
Operating Lease, Weighted Average Remaining Lease Term	32 years
Operating Lease, Weighted Average Discount Rate, Percent	4.40%
Percentage Of Rental Revenue From Leasing Of Apartment Homes	93.00%
Percentage Of Reimbursable Revenue From Leasing Of Apartment Homes	6.00%
Percentage of Rental Revenue and Other Income From Non-leasing Activities	1.00%
Accounting Standards Update 2016-02 [Member]
Real Estate Properties [Line Items]
Operating Lease, Right-of-Use Asset							$ 54,300
Operating Lease, Liability							$ 33,600
Operating Lease, Weighted Average Remaining Lease Term							33 years
Operating Lease, Weighted Average Discount Rate, Percent							4.40%
Post Massachusetts Avenue [Member]
Real Estate Properties [Line Items]
Number of apartments included in a community | Community	1
Real Estate Investments, Joint Ventures	$ 44,000
Post Massachusetts Avenue [Member] | Apartment LLC [Member]
Real Estate Properties [Line Items]
Equity Method Investment, Ownership Percentage	35.00%
Real Estate Technology Ventures, L.P. [Member]
Real Estate Properties [Line Items]
Equity Method Investment, Ownership Percentage	20.70%
Real Estate Investments, Joint Ventures	$ 10,900
Real Estate Technology Ventures, L.P. [Member] | Other Assets [Member]
Real Estate Properties [Line Items]
Real Estate Investments, Joint Ventures	$ 6,200
Post River North [Member]
Real Estate Properties [Line Items]
Percentage Of Ownership Interests	92.50%
Number of apartments included in a community | ApartmentUnit	359
Buildings, Improvements, and Other	$ 69,100
Land	14,900
Accrued expenses and other liabilities	$ 800
Percentage of remaining ownership interests	7.50%
Phoenix Midtown [Member]
Real Estate Properties [Line Items]
Percentage Of Ownership Interests	80.00%
Buildings, Improvements, and Other	$ 8,700
Land	9,400
Accrued expenses and other liabilities	$ 2,000
Percentage of remaining ownership interests	20.00%
Minimum [Member]
Real Estate Properties [Line Items]
Percentage Of Ownership Interests	80.00%
Maximum [Member]
Real Estate Properties [Line Items]
Percentage Of Ownership Interests	100.00%
Maximum [Member] | Accounting Standards Update 2016-02 [Member]
Real Estate Properties [Line Items]
Operating lease, term of contract	1 year
Limited Partner [Member]
Real Estate Properties [Line Items]
General Partners' Capital Account, Units Outstanding | shares	114,043,089							113,844,267
Number of owned or owned interests of apartment communities | Property	1
Development and capital improvements in progress	$ 97,526							$ 59,506
Buildings, Improvements, and Other	11,775,716							11,670,216
Land	1,883,960							1,868,828
Accrued expenses and other liabilities	$ 450,212							$ 413,850
Limited Partner [Member] | Minimum [Member]
Real Estate Properties [Line Items]
Percentage Of Ownership Interests	80.00%
Limited Partner [Member] | Maximum [Member]
Real Estate Properties [Line Items]
Percentage Of Ownership Interests	100.00%
Retail
Real Estate Properties [Line Items]
Number of owned or owned interests of apartment communities | Property	30
Square Footage of Real Estate Property | ft²	615,000
Development Properties
Real Estate Properties [Line Items]
Number of owned or owned interests of apartment communities | Community	5
Number of units under development community | Property	1,090
Development and capital improvements in progress	$ 230,500
Development and capital improvements in progress	$ 82,500
Development Properties | Expected Costs [Member]
Real Estate Properties [Line Items]
Number of owned or owned interests of apartment communities | Community	5
Development Properties | Scenario Forecast [Member]
Real Estate Properties [Line Items]
Number of owned or owned interests of apartment communities | Property			1	1	1	2
Commercial Real Estate [Member]
Real Estate Properties [Line Items]
Number of owned or owned interests of apartment communities | Property	4
Square Footage of Real Estate Property | ft²	260,000

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Earnings Per Common Share of MAA - Schedule of Computation of Diluted Earnings per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Earnings Per Share Disclosure [Line Items]
Income from Continuing Operations, Including Portion Attributable to Noncontrolling Interest		$ 64,141	$ 61,981	$ 130,099	$ 112,801
Income from continuing operations attributable to noncontrolling interests		(2,224)	(2,174)	(4,522)	(3,975)
Income from continuing operations allocated to unvested restricted shares		(96)	(78)	(184)	(142)
Dividends, Preferred Stock, Cash		(922)	(922)	(1,844)	(1,844)
Income from continuing operations available for common shareholders, adjusted		$ 60,899	$ 58,807	$ 123,549	$ 106,840
Weighted average common shares - basic		113,838	113,646	113,783	113,595
Earnings per share - basic		$ 0.53	$ 0.52	$ 1.09	$ 0.94
Income from Continuing Operations, Including Portion Attributable to Noncontrolling Interest		$ 64,141	$ 61,981	$ 130,099	$ 112,801
Income from continuing operations attributable to noncontrolling interests	[1]	(2,224)	(2,174)	(4,522)	(3,975)
Adjusted Income (Loss) from Continuing Operations Available for Common Shareholders, Diluted		$ 60,995	$ 58,885	$ 123,733	$ 106,982
Effect of dilutive securities		249	207	211	174
Weighted average common shares - diluted		114,087	113,853	113,994	113,769
Earnings per share - diluted		$ 0.53	$ 0.52	$ 1.09	$ 0.94
Limited Partnership Units [Member]
Earnings Per Share Disclosure [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount		4,100	4,100	4,100	4,200

[1] For the three months ended June 30, 2019 and June 30, 2018, 4.1 million OP Units and their related income are not included in the diluted earnings per share calculations as they are not dilutive. For the six months ended June 30, 2019 and June 30, 2018, 4.1 million OP Units and 4.2 million OP Units, respectively, and their related income are not included in the diluted earnings per share calculations as they are not dilutive.

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Earnings Per OP Unit of MAALP - Schedule of Diluted Earnings per Common Unit (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Earnings Per Share Disclosure [Line Items]
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	$ 64,141	$ 61,981	$ 130,099	$ 112,801
Dividends, Preferred Stock, Cash	$ (922)	$ (922)	$ (1,844)	$ (1,844)
Earnings per share - basic	$ 0.53	$ 0.52	$ 1.09	$ 0.94
Effect of dilutive securities	249,000	207,000	211,000	174,000
Weighted average common shares - diluted	114,087,000	113,853,000	113,994,000	113,769,000
Earnings per share - diluted	$ 0.53	$ 0.52	$ 1.09	$ 0.94
Limited Partner [Member]
Earnings Per Share Disclosure [Line Items]
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	$ 64,141	$ 61,981	$ 130,099	$ 112,801
Income from continuing operations allocated to unvested restricted shares	(96)	(78)	(184)	(142)
Dividends, Preferred Stock, Cash	(922)	(922)	(1,844)	(1,844)
Income from continuing operations available for common unitholders, adjusted - basic	$ 63,123	$ 60,981	$ 128,071	$ 110,815
Weighted average common units - basic	117,935	117,783	117,886	117,754
Earnings per share - basic	$ 0.53	$ 0.52	$ 1.09	$ 0.94
Income from continuing operations available for common unitholders, adjusted	$ 63,219	$ 61,059	$ 128,255	$ 110,957
Effect of dilutive securities	249	207	211	174
Weighted average common shares - diluted	118,184	117,990	118,097	117,928
Earnings per share - diluted	$ 0.53	$ 0.52	$ 1.09	$ 0.94

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MAA Equity - Summary of Changes in Total Equity and its Components (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance	$ 6,325,299	$ 6,520,363	$ 6,372,189	$ 6,573,894
Net Income Including Portion Attributable to Noncontrolling Interest	64,141	61,981	130,099	112,801
Other comprehensive (loss) income - derivatives instruments (cash flow hedges)	(6,004)	5,165	(9,205)	5,804
Issuance and registration of common shares	(519)	(341)	610	(236)
Shares repurchased and retired	(701)		(3,724)	(2,912)
Exercise of stock options	1,032		1,240	625
Shares issued in exchange for redeemable stock	575		575	1,915
Redeemable stock fair market value	(835)	(892)	(2,186)	73
Adjustment for noncontrolling interests in Operating Partnership	490		3,350
Amortization of unearned compensation	3,452	2,963	8,237	6,987
Dividends, Preferred Stock, Cash	(922)	(922)	(1,844)	(1,844)
Dividends on common stock	(109,557)	(105,023)	(218,949)	(209,994)
Dividends on noncontrolling interest units	(3,925)	(3,814)	(7,866)	(7,633)
Contribution from noncontrolling interest	490		3,350
Ending Balance	6,272,526	6,479,480	6,272,526	6,479,480
Preferred Stock [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance	9	9	9	9
Ending Balance	9	9	9	9
Common Stock [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance	1,137	1,135	1,136	1,134
Issuance and registration of common shares	1		2	1
Shares issued in exchange for units		1		1
Ending Balance	1,138	1,136	1,138	1,136
Additional Paid-in Capital [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance	7,141,544	7,127,740	7,138,170	7,121,112
Issuance and registration of common shares	(520)	(341)	608	(237)
Shares repurchased and retired	(701)		(3,724)	(2,912)
Exercise of stock options	1,032		1,240	625
Shares issued in exchange for units	821	337	1,157	3,117
Shares issued in exchange for redeemable stock	575		575	1,915
Adjustment for noncontrolling interests in Operating Partnership	(127)	203	(187)	295
Amortization of unearned compensation	3,452	2,963	8,237	6,987
Ending Balance	7,146,076	7,130,902	7,146,076	7,130,902
Accumulated Distributions in Excess of Net Income [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance	(1,037,268)	(840,642)	(989,263)	(784,500)
Net income attributable to MAA	61,917	59,807	125,577	108,826
Redeemable stock fair market value	(835)	(892)	(2,186)	73
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification				(233)
Dividends, Preferred Stock, Cash	(922)	(922)	(1,844)	(1,844)
Dividends on common stock	(109,557)	(105,023)	(218,949)	(209,994)
Ending Balance	(1,086,665)	(887,672)	(1,086,665)	(887,672)
Accumulated Other Comprehensive Income (Loss) [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance	(3,300)	3,000	(212)	2,157
Other comprehensive (loss) income - derivatives instruments (cash flow hedges)	(5,792)	4,986	(8,880)	5,596
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification				233
Ending Balance	(9,092)	7,986	(9,092)	7,986
Noncontrolling Interest
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance	5,166	2,306	2,306	2,306
Adjustment for noncontrolling interests in Operating Partnership	490		3,350
Contribution from noncontrolling interest	490		3,350
Ending Balance	5,656	2,306	5,656	2,306
General Partner
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance	218,011	226,815	220,043	231,676
Net Income Attributable to Noncontrolling Interest	2,224	2,174	4,522	3,975
Other comprehensive (loss) income - derivatives instruments (cash flow hedges)	(212)	179	(325)	208
Shares issued in exchange for units	(821)	(338)	(1,157)	(3,118)
Adjustment for noncontrolling interests in Operating Partnership	127	(203)	187	(295)
Dividends on noncontrolling interest units	(3,925)	(3,814)	(7,866)	(7,633)
Ending Balance	$ 215,404	$ 224,813	$ 215,404	$ 224,813

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MAA Equity - Summary of Changes in Total Equity and its Components (Parenthetical) (Details) - $ / shares	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
M A A Equity [Abstract]
Common Stock, Dividends, Per Share, Declared	$ 0.9600	$ 0.9225	$ 1.9200	$ 1.8450

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MAALP Capital - Summary of Changes in Total Capital and its Components (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Increase (Decrease) in Partners' Capital [Roll Forward]
Beginning Balance	$ 6,325,280	$ 6,520,344	$ 6,372,170	$ 6,573,875
Net Income Available for Common Unitholders	64,141	61,981	130,099	112,801
Other comprehensive (loss) income - derivatives instruments (cash flow hedges)	(6,004)	5,165	(9,205)	5,804
Issuance of units	(519)	(341)	610	(236)
Units repurchased and retired	(701)		(3,724)	(2,912)
Units Issued During Period, Value, Unit Options Exercised	1,032		1,240	625
Units issued in exchange for redeemable units	575		575	1,915
Redeemable stock fair market value	(835)	(892)	(2,186)	73
Amortization of unearned compensation	3,452	2,963	8,237	6,987
Dividends, Preferred Stock, Cash	(922)	(922)	(1,844)	(1,844)
Distributions	(113,482)	(108,837)	(226,815)	(217,627)
Contribution from noncontrolling interest	490		3,350
Ending Balance	6,272,507	6,479,461	6,272,507	6,479,461
Limited Partner [Member]
Increase (Decrease) in Partners' Capital [Roll Forward]
Beginning Balance	218,011	226,815	220,043	231,676
Net income	2,224	2,174	4,522	3,975
General partnership units issued in exchange for limited partnership units	(821)	(338)	(1,157)	(3,118)
Adjustment for limited partners' capital at redemption value	(85)	(24)	(138)	(87)
Distributions	(3,925)	(3,814)	(7,866)	(7,633)
Ending Balance	215,404	224,813	215,404	224,813
General Partners' Capital Account [Member]
Increase (Decrease) in Partners' Capital [Roll Forward]
Beginning Balance	6,038,625	6,221,216	6,083,142	6,270,758
Net Income Allocated to General Partners	60,995	58,885	123,733	106,982
Issuance of units	(519)	(341)	610	(236)
Units repurchased and retired	(701)		(3,724)	(2,912)
Units Issued During Period, Value, Unit Options Exercised	1,032		1,240	625
General partnership units issued in exchange for limited partnership units	821	338	1,157	3,118
Units issued in exchange for redeemable units	575		575	1,915
Redeemable stock fair market value	(835)	(892)	(2,186)	73
Adjustment for limited partners' capital at redemption value	85	24	138	87
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification				(233)
Amortization of unearned compensation	3,452	2,963	8,237	6,987
Distributions	(109,557)	(105,023)	(218,949)	(209,994)
Ending Balance	5,993,973	6,177,170	5,993,973	6,177,170
Accumulated Distributions in Excess of Net Income [Member]
Increase (Decrease) in Partners' Capital [Roll Forward]
Beginning Balance	66,840	66,840	66,840	66,840
Net income	922	922	1,844	1,844
Redeemable stock fair market value	(835)	(892)	(2,186)	73
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification				(233)
Dividends, Preferred Stock, Cash	(922)	(922)	(1,844)	(1,844)
Ending Balance	66,840	66,840	66,840	66,840
AOCI Attributable to Noncontrolling Interest [Member]
Increase (Decrease) in Partners' Capital [Roll Forward]
Beginning Balance	(3,362)	3,167	(161)	2,295
Other comprehensive (loss) income - derivatives instruments (cash flow hedges)	(6,004)	5,165	(9,205)	5,804
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification				233
Ending Balance	(9,366)	8,332	(9,366)	8,332
Noncontrolling Interest
Increase (Decrease) in Partners' Capital [Roll Forward]
Beginning Balance	5,166	2,306	2,306	2,306
Contribution from noncontrolling interest	490		3,350
Ending Balance	$ 5,656	$ 2,306	$ 5,656	$ 2,306

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MAALP Capital - Summary of Changes in Total Capital and its Components (Parenthetical) (Details) - $ / shares	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Limited Partner [Member]
Capital Disclosure [Line Items]
Distribution Made to Limited Partner, Distributions Declared, Per Unit	$ 0.9600	$ 0.9225	$ 1.9200	$ 1.8450

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Borrowings - Summary of Outstanding Debt (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Unsecured Debt	$ 3,879,526	$ 4,053,302
Total Outstanding Debt	$ 4,539,989
Debt Instrument, Interest Rate, Effective Percentage	3.80%
Unsecured Debt [Member]
Debt Instrument [Line Items]
Total Outstanding Debt	$ 3,879,526
Debt Instrument, Interest Rate, Effective Percentage	3.70%
Unsecured Debt [Member] | Fixed Rate Debt Senior Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 2,942,000
Debt Instrument, Interest Rate, Effective Percentage	4.00%
Contract Maturity	Nov. 26, 2025
Unsecured Debt [Member] | Commercial Paper Notes [Member] | Variable Rate Commercial Paper Program [Member]
Debt Instrument [Line Items]
Unsecured Debt	$ 367,000
Debt Instrument, Interest Rate, Effective Percentage	2.70%
Contract Maturity	Jul. 16, 2019
Unsecured Debt [Member] | Term Loan [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 300,000
Debt Instrument, Interest Rate, Effective Percentage	2.30%
Contract Maturity	Mar. 01, 2022
Unsecured Debt [Member] | Variable Rate Debt [Member]
Debt Instrument [Line Items]
Unsecured Debt	$ 300,000
Debt Instrument, Interest Rate, Effective Percentage	3.40%
Contract Maturity	Aug. 29, 2020
Unsecured Debt [Member] | $1 billion unsecured revolving credit facility [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Amount Outstanding	$ 0
Contract Maturity	May 31, 2023
Unsecured Debt [Member] | $1 billion unsecured revolving credit facility [Member] | Fair Market Value Adjustment and Debt Issuance Cost [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ (29,474)
Secured Debt [Member]
Debt Instrument [Line Items]
Total Outstanding Debt	$ 660,463
Debt Instrument, Interest Rate, Effective Percentage	4.50%
Secured Debt [Member] | Fixed Rate Debt Senior Notes [Member]
Debt Instrument [Line Items]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate	$ 663,764
Debt Instrument, Interest Rate, Effective Percentage	4.50%
Contract Maturity	May 17, 2036
Secured Debt [Member] | Fair Market Value Adjustment and Debt Issuance Cost [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Amount Outstanding	$ (3,301)

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Borrowings - Additional Information (Details)	6 Months Ended
	Jun. 30, 2019 USD ($) Loan
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Effective Percentage	3.80%
Commercial Paper Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Payment Terms	397
Debt Instrument, Face Amount	$ 367,000,000.0
US Bank Term Loan [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 150,000,000.0
Debt Instrument Maturity Period	2020
Unsecured Debt [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Effective Percentage	3.70%
Number of Term Loans | Loan	3
Unsecured Debt [Member] | Fixed Rate Debt Senior Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Maturity Date	Nov. 26, 2025
Debt Instrument, Face Amount	$ 2,942,000,000
Debt Instrument, Interest Rate, Effective Percentage	4.00%
Unsecured Debt [Member] | years to maturity [Member] | Fixed Rate Debt Senior Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Term	6 years 4 months 24 days
Unsecured Debt [Member] | $1 billion unsecured revolving credit facility [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Current Borrowing Capacity	$ 1,000,000,000.0
Line of Credit Facility, Maximum Borrowing Capacity	$ 1,500,000,000
Debt Instrument, Maturity Date	May 31, 2023
Line of Credit Facility, Amount Outstanding	$ 0
Letters of Credit Outstanding, Amount	2,500,000
Unsecured Debt [Member] | Public Income Notes [Member] | Fixed Rate Debt Senior Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount	2,700,000,000
Unsecured Debt [Member] | Private Placement [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount	242,000,000.0
Unsecured Debt [Member] | Private Placement [Member] | Fixed Rate Debt Senior Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 242,000,000.0
Unsecured Debt [Member] | 3.95% Notes due 2029 [Member]
Debt Instrument [Line Items]
Debt Instrument, Payment Terms	Interest on the 2029 Notes is payable on March 15 and September 15 of each year, beginning on September 15, 2019.
Debt Instrument, Face Amount	$ 300,000,000.0
Debt Instrument, Term	10 years
Debt Instrument, Interest Rate, Stated Percentage	3.95%
Debt Instrument, Redemption Price, Percentage	99.72%
Debt Issuance Costs, Gross	$ 2,800,000
Proceeds from Debt, Net of Issuance Costs	297,200,000
Settlement of Forward Swaps	$ 300,000,000.0
Debt Instrument, Interest Rate, Effective Percentage	4.24%
Unsecured Debt [Member] | KeyBank Term Loan [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 150,000,000.0
Number of Term Loans | Loan	1
Debt Instrument Maturity Period	2021
Unsecured Debt [Member] | US Bank Term Loan [Member]
Debt Instrument [Line Items]
Number of Term Loans | Loan	1
Unsecured Debt [Member] | Wells Fargo Term Loan [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 300,000,000.0
Debt Instrument, Interest Rate, Stated Percentage	2.32%
Number of Term Loans | Loan	1
Unsecured Debt [Member] | Term Loan [Member]
Debt Instrument [Line Items]
Debt Instrument, Maturity Date	Mar. 01, 2022
Debt Instrument, Face Amount	$ 300,000,000
Debt Instrument, Interest Rate, Effective Percentage	2.30%
Unsecured Debt [Member] | Wells Fargo Term Loan One [Member]
Debt Instrument [Line Items]
Debt Instrument Maturity Period	2022
Unsecured Debt [Member] | Wells Fargo Term Loan 2022 [Member]
Debt Instrument [Line Items]
Debt Instrument Maturity Period	2020-01
Unsecured Debt [Member] | Wells Fargo Term Loan 2019 [Member]
Debt Instrument [Line Items]
Repayments of Unsecured Debt	$ 300,000,000.0
Secured Debt [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Effective Percentage	4.50%
Secured Debt [Member] | Fixed Rate Debt Senior Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Maturity Date	May 17, 2036
Debt Instrument, Interest Rate, Effective Percentage	4.50%
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate	$ 663,764,000
Secured Debt [Member] | Mortgage maturing in February 2049 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Effective Percentage	4.43%
Proceeds from Loan Originations	$ 191,300,000
Minimum [Member] | US Bank Term Loan [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	0.90%
Minimum [Member] | Unsecured Debt [Member] | Fixed Rate Debt Senior Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Term	7 years
Minimum [Member] | Unsecured Debt [Member] | $1 billion unsecured revolving credit facility [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	0.75%
Minimum [Member] | Unsecured Debt [Member] | KeyBank Term Loan [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	0.90%
Minimum [Member] | Unsecured Debt [Member] | Term Loan [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	0.90%
Maximum [Member] | Commercial Paper Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 500,000,000.0
Maximum [Member] | US Bank Term Loan [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	1.90%
Maximum [Member] | Unsecured Debt [Member] | Fixed Rate Debt Senior Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Term	12 years
Maximum [Member] | Unsecured Debt [Member] | $1 billion unsecured revolving credit facility [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	1.45%
Maximum [Member] | Unsecured Debt [Member] | KeyBank Term Loan [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	1.75%
Maximum [Member] | Unsecured Debt [Member] | Term Loan [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	1.75%

XML

Financial Instruments and Derivatives - Additional Information (Details)	6 Months Ended
	Jun. 30, 2019 USD ($) Contract $ / shares	Dec. 31, 2018 USD ($)
Derivative
Preferred Stock, Redemption Price Per Share | $ / shares	$ 50
Preferred Stock, Redemption Date	Oct. 01, 2026
net liability position [Member]
Derivative
Credit Risk Related Contingent Features Termination Value	$ 4,200,000
Fair Value, Measurements, Recurring [Member]
Derivative
Interest Rate Derivative Assets, at Fair Value	1,100,000	$ 3,700,000
Interest Rate Derivative Liabilities, at Fair Value	4,800,000	5,300,000
Embedded Derivative, Fair Value of Embedded Derivative Asset	22,700,000	18,600,000
Forward Swaps on future expected debt issuance [Member]
Derivative
Cash Flow Hedges Derivative Instruments at Fair Value, Net	$ 150,000,000.0
Maximum Length of Time Hedged in Cash Flow Hedge	10 years
Designated as Hedging Instrument | Interest Expense
Derivative
Change in fair value of interest rate derivatives included in AOCI and expected to be reclassified in the next 12 months	$ 100,000
Designated as Hedging Instrument | Interest Rate Swap
Derivative
Derivative, Number of Instruments Held | Contract	4
Derivative, Notional Amount	$ 300,000,000.0
Conventional Variable Rate Debt [Member] | Minimum [Member]
Derivative
Debt Renewal Period	30 days
Conventional Variable Rate Debt [Member] | Maximum [Member]
Derivative
Debt Renewal Period	90 days
Fixed Rate Debt
Derivative
Notes Payable Excluding Interest Rate Swaps and Cap Agreements	$ 3,600,000,000	3,100,000,000
Notes Payable, Fair Value Disclosure	3,800,000,000	3,100,000,000
Floating Rate Debt [Member]
Derivative
Notes Payable Excluding Interest Rate Swaps and Cap Agreements	900,000,000	1,100,000,000
Notes Payable, Fair Value Disclosure	$ 900,000,000	$ 1,100,000,000

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Financial Instruments and Derivatives - Effect of Derivative Instruments on Consolidated Statement of Operations (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Derivative
Unrealized (loss) gain from the effective portion of derivative instruments	$ (5,426)	$ 5,720	$ (7,882)	$ 6,552
Designated as Hedging Instrument | Interest Expense
Derivative
Amount of Gain or (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)	578	555	1,323	748
Designated as Hedging Instrument | Interest Rate Contract
Derivative
Unrealized (loss) gain from the effective portion of derivative instruments	(5,426)	5,720	(7,882)	6,552
Not Designated as Hedging Instrument | Interest Expense
Derivative
Derivative Instruments, Gain (Loss) Recognized in Income, Net	$ 4,594	$ 2,793	$ 4,070	$ 149

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Shareholders' Equity of MAA - Additional Information (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Equity [Line Items]
Common stock, shares outstanding	114,043,089	113,808,292	113,844,267
Total common shares and operating partnership units outstanding	118,133,172	117,943,960
Proceeds from Stock Options Exercised	$ 1.2	$ 0.6
Equity Option [Member]
Equity [Line Items]
Stock Issued During Period, Shares, New Issues	20,718	12,600
Noncontrolling Interest
Equity [Line Items]
Common Shares Issuable Upon Conversion Of Convertible Stock	4,090,083	4,135,668
Employee Stock Option [Member]
Equity [Line Items]
Common stock shares, outstanding option	60,442	95,838

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Shareholders' Equity of MAA - Schedule of Cumulative Redeemable Preferred Stock (Details) - $ / shares	6 Months Ended	12 Months Ended
	Jun. 30, 2019	Dec. 31, 2018
Equity [Line Items]
Preferred Stock, Shares Outstanding	867,846	867,846
Preferred Stock, Liquidation Preference Per Share	$ 50	$ 50
Preferred Stock, Redemption Date	Oct. 01, 2026
Preferred Stock, Redemption Price Per Share	$ 50
Preferred Stock, Dividend Rate, Percentage	8.50%	8.50%
Preferred Stock, Dividend Rate, Per-Dollar-Amount	$ 4.25
Redeemable Preferred Stock [Member]
Equity [Line Items]
Preferred Stock, Shares Outstanding	867,846

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Shareholders' Equity of MAA - Schedule of Cumulative Redeemable Preferred Stock (Parenthetical) (Details) $ in Millions	Jun. 30, 2019 USD ($)
M A A Equity [Abstract]
Preferred Stock, Liquidation Preference, Value	$ 43.4

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Partners' Capital of MAALP - Additional Information (Details) - USD ($) $ / shares in Units, $ in Millions	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Schedule of Capital Structure [Line Items]
Operating partnership units outstanding	118,133,172	117,943,960
General Partners' Capital Account, Units Outstanding	114,043,089	113,808,292
Limited Liability Company (LLC) or Limited Partnership (LP), Managing Member or General Partner, Ownership Interest	96.50%	96.50%
Limited Partners' Capital Account, Units Outstanding	4,090,083	4,135,668
Preferred Stock, Shares Outstanding	867,846		867,846
Redeemable Preferred Stock [Member]
Schedule of Capital Structure [Line Items]
Preferred Stock, Shares Outstanding	867,846
Noncontrolling Interest
Schedule of Capital Structure [Line Items]
Common Shares Issuable Upon Conversion Of Convertible Stock	4,090,083	4,135,668
Limited Partners' Capital Account	$ 481.6	$ 416.3
Redeemable Capital Shares Par Or Stated Value Per Share	$ 117.76	$ 100.67

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Commitments and Contingencies - Additional Information (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2019	Dec. 31, 2018
Loss Contingencies [Line Items]
Loss Contingency Accrual	$ 8.6	$ 8.7
Cleven Litigation Case [Member]
Loss Contingencies [Line Items]
Loss Contingency, Estimate of Possible Loss	54.6
Brown Litigation Case [Member]
Loss Contingencies [Line Items]
Loss Contingency, Estimate of Possible Loss	$ 8.4
Apartment Communities [Member]
Loss Contingencies [Line Items]
Lease expiration year	2074
Office Lease [Member]
Loss Contingencies [Line Items]
Lease expiration year	2028

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Commitments and Contingencies - Schedule of Operating Lease Obligations (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2019 USD ($)
Loss Contingency [Abstract]
Operating Leases, Future Minimum Payments Due, Next Twelve Months	$ 1,367
Operating Leases, Future Minimum Payments, Due in Two Years	2,744
Operating Leases, Future Minimum Payments, Due in Three Years	2,771
Operating Leases, Future Minimum Payments, Due in Four Years	2,767
Operating Leases, Future Minimum Payments, Due in Five Years	2,761
Operating Leases, Future Minimum Payments, Due Thereafter	68,516
Operating Leases, Future Minimum Payments Due	80,926
Net present value adjustments	(47,692)
Operating Lease, Liability	$ 33,234

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Segment Information - Additional Information (Details)	6 Months Ended
	Jun. 30, 2019 Property State Segment
Segment Reporting Information [Line Items]
Number of owned or owned interests of apartment communities | Property	303
Number of States in which Entity Operates | State	17
Number of reportable segments | Segment	2
Period properties owned and stabilized	12 months
Occupancy Level for Stabilized Communities	90.00%
Period Properties Stabilized	90 days
Same Store [Member]
Segment Reporting Information [Line Items]
Period properties owned and stabilized	12 months

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Segment Information - Revenues and NOI for Reportable Segment (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Segment Information
Total operating revenues	$ 407,390	$ 390,073	$ 808,568	$ 776,090
Net Operating Income	253,248	241,343	505,049	482,956
Depreciation and amortization	(123,944)	(122,925)	(246,733)	(243,669)
Other Cost and Expense, Operating	(13,454)	(11,396)	(27,296)	(24,276)
General and administrative expense	(10,598)	(9,211)	(23,751)	(19,343)
Business Combination, Merger and Integration Related Expenses	0	(2,826)	0	(6,625)
Interest expense	(45,936)	(43,585)	(91,636)	(84,490)
Gain (loss) on sale of depreciable real estate assets		2	(13)	2
Gain on sale of non-depreciable real estate assets	297	2,761	9,260	2,911
Other non-operating income	4,775	8,032	5,710	5,691
Income tax expense	(682)	(570)	(1,323)	(1,210)
Gain (loss) from real estate joint ventures	435	356	832	854
Net income attributable to noncontrolling interests	(2,224)	(2,174)	(4,522)	(3,975)
Preferred Stock Dividends, Income Statement Impact	(922)	(922)	(1,844)	(1,844)
Net income available for MAA common shareholders	60,995	58,885	123,733	106,982
Same Store [Member]
Segment Information
Revenue from Contract with Customer, Including Assessed Tax	376,977	342,775	749,418	683,870
Property Management Fee Revenue		22,605		45,607
Other Operating Income	3,632	3,349	6,731	6,223
Total operating revenues	380,609	368,729	756,149	735,700
Net Operating Income	237,305	230,414	474,744	462,069
Non-Same Store and Other
Segment Information
Revenue from Contract with Customer, Including Assessed Tax	26,602	20,400	52,101	38,345
Property Management Fee Revenue		591		1,276
Other Operating Income	179	353	318	769
Total operating revenues	26,781	21,344	52,419	40,390
Net Operating Income	$ 15,943	$ 10,929	$ 30,305	$ 20,887

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Segment Information - Revenues and NOI for Reportable Segment (Parenthetical) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Same Store [Member]
Segment Information
Reimbursable property revenues		$ 22,605		$ 45,607
Non-Same Store and Other
Segment Information
Reimbursable property revenues		$ 591		$ 1,276
Accounting Standards Update 2016-02 [Member] | Same Store [Member]
Segment Information
Reimbursable property revenues	$ 23,100		$ 46,100
Accounting Standards Update 2016-02 [Member] | Non-Same Store and Other
Segment Information
Reimbursable property revenues	$ 800		$ 1,600

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Segment Information - Assets for Reportable Segment (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	$ 11,274,830	$ 11,323,781
Same Store [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	9,849,840	9,991,538
Non-Same Store and Other
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	1,233,089	1,163,083
Corporate assets
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	$ 191,901	$ 169,160

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Real Estate Acquisitions and Dispositions - Schedule of Real Estate Asset Acquisitions and Dispositions (Details)	6 Months Ended
	Jun. 30, 2019 ft² a ApartmentUnit
Atlanta, GA | Land [Member] | Peachtree Road Outparcel [Member]
Business Acquisitions and Dispositions [Line Items]
Area of Land	1
Acquisition date	2019-02
Huntsville, AL | Land [Member] | Colonial Promenade Outparcel [Member]
Business Acquisitions and Dispositions [Line Items]
Area of Land	4
Acquisition date	2019-04
Memphis,TN | Poplar Avenue Office [Member] | Commercial Real Estate [Member]
Business Acquisitions and Dispositions [Line Items]
Square Footage of Real Estate Property | ft²	42,000
Acquisition date	2019-03
Novel Midtown [Member] | Phoenix, AZ | Multifamily [Member]
Business Acquisitions and Dispositions [Line Items]
Number of Units in Real Estate Property | ApartmentUnit	345
Acquisition date	2019-02
North Orange Avenue Outparcel [Member] | Orlando, FL | Land [Member]
Business Acquisitions and Dispositions [Line Items]
Area of Land	2
Acquisition date	2019-04

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Real Estate Acquisitions and Dispositions - Schedule of Real Estate Asset Acquisitions and Dispositions (Parenthetical) (Details)	Jun. 30, 2019
Novel Midtown [Member]
Business Acquisitions and Dispositions [Line Items]
Joint venture interest	80.00%