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 March 31, 2023

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 the 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 ☐

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.

Mid-America Apartment Communities, Inc. ☐

Mid-America Apartments, L.P. ☐

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	April 24, 2023
Common Stock, $0.01 par value	116,659,693

MID-AMERICA APARTMENT COMMUNITIES, INC.

MID-AMERICA APARTMENTS, L.P.

TABLE OF CONTENTS

			Page
PART I – FINANCIAL INFORMATION
Item 1.	Financial Statements.		5
	Mid-America Apartment Communities, Inc.
		Condensed Consolidated Balance Sheets as of March 31, 2023 and December 31, 2022.	5
		Condensed Consolidated Statements of Operations for the three months ended March 31, 2023 and 2022.	6
		Condensed Consolidated Statements of Comprehensive Income for the three months ended March 31, 2023 and 2022.	7
		Condensed Consolidated Statements of Cash Flows for the three months ended March 31, 2023 and 2022.	8
	Mid-America Apartments, L.P.
		Condensed Consolidated Balance Sheets as of March 31, 2023 and December 31, 2022.	9
		Condensed Consolidated Statements of Operations for the three months ended March 31, 2023 and 2022.	10
		Condensed Consolidated Statements of Comprehensive Income for the three months ended March 31, 2023 and 2022.	11
		Condensed Consolidated Statements of Cash Flows for the three months ended March 31, 2023 and 2022.	12
	Notes to Condensed Consolidated Financial Statements.		13
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations.		25
Item 3.	Quantitative and Qualitative Disclosures About Market Risk.		35
Item 4.	Controls and Procedures.		35
PART II – OTHER INFORMATION
Item 1.	Legal Proceedings.		35
Item 1A.	Risk Factors.		36
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds.		36
Item 3.	Defaults Upon Senior Securities.		36
Item 4.	Mine Safety Disclosures.		36
Item 5.	Other Information.		36
Item 6.	Exhibits.		37
	Signatures.		38

2

Explanatory Note

This report combines the Quarterly Reports on Form 10-Q for the quarter ended March 31, 2023 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 97.4% 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 March 31, 2023, MAA owned 116,600,756 OP Units (97.4% 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, an S&P 500 company, 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. 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 from time to time. 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 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 interests, treasury shares, accumulated other comprehensive income or loss 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 interests, accumulated other comprehensive income or loss and redeemable common units. Holders of OP Units (other than MAA) 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.

3

In order to highlight the material differences between MAA and the Operating Partnership, this 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 Part 1, Item 1 of this report;

•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 Part 1, Item 4 of this report; and

•the certifications included as Exhibits 31 and 32 to this report.

In the sections that combine disclosures for MAA and the Operating Partnership, this Quarterly Report on Form 10-Q 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.

4

PART I – FINANCIAL INFORMATION

Item 1. Financial Statements.

Mid-America Apartment Communities, Inc.

Condensed Consolidated Balance Sheets

(Unaudited)

(Dollars in thousands, except per share data)

	March 31, 2023			December 31, 2022
Assets
Real estate assets:
Land	$	2,008,523		$	2,008,364
Buildings and improvements and other		12,924,101			12,841,947
Development and capital improvements in progress		391,439			332,035
		15,324,063			15,182,346
Less: Accumulated depreciation		(4,440,520	)		(4,302,747	)
		10,883,543			10,879,599
Undeveloped land		73,861			64,312
Investment in real estate joint venture		42,333			42,290
Real estate assets, net		10,999,737			10,986,201
Cash and cash equivalents		142,411			38,659
Restricted cash		13,606			22,412
Other assets		196,557			193,893
Total assets	$	11,352,311		$	11,241,165
Liabilities and equity
Liabilities:
Unsecured notes payable	$	4,032,000		$	4,050,910
Secured notes payable		363,650			363,993
Accrued expenses and other liabilities		566,075			615,843
Total liabilities		4,961,725			5,030,746
Redeemable common stock		19,590			20,671
Shareholders’ equity:
Preferred stock, $0.01 par value per share, 20,000,000 shares authorized;    8.50% Series I Cumulative Redeemable Shares, liquidation preference $50.00    per share, 867,846 shares issued and outstanding as of March 31, 2023    and December 31, 2022, respectively		9			9
Common stock, $0.01 par value per share, 145,000,000 shares authorized;    116,600,756 and 115,480,336 shares issued and outstanding as of    March 31, 2023 and December 31, 2022, respectively (1)		1,167			1,152
Additional paid-in capital		7,408,307			7,202,834
Accumulated distributions in excess of net income		(1,216,325	)		(1,188,854	)
Accumulated other comprehensive loss		(9,791	)		(10,052	)
Total MAA shareholders’ equity		6,183,367			6,005,089
Noncontrolling interests - OP Units		166,309			163,595
Total Company’s shareholders’ equity		6,349,676			6,168,684
Noncontrolling interests - consolidated real estate entities		21,320			21,064
Total equity		6,370,996			6,189,748
Total liabilities and equity	$	11,352,311		$	11,241,165

(1)Number of shares issued and outstanding represents 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 March 31, 2023 and December 31, 2022 are 129,704 and 136,429, respectively.

See accompanying notes to condensed consolidated financial statements.

5

Mid-America Apartment Communities, Inc.

Condensed Consolidated Statements of Operations

(Unaudited)

(Dollars in thousands, except per share data)

	Three months ended March 31,
	2023			2022
Revenues:
Rental and other property revenues	$	529,033		$	476,078
Expenses:
Operating expenses, excluding real estate taxes and insurance		108,604			101,117
Real estate taxes and insurance		74,199			68,303
Depreciation and amortization		138,501			133,738
Total property operating expenses		321,304			303,158
Property management expenses		17,928			16,537
General and administrative expenses		15,923			16,323
Interest expense		37,281			39,121
(Gain) loss on sale of depreciable real estate assets		(15	)		1
Gain on sale of non-depreciable real estate assets		(54	)		(23	)
Other non-operating income		(3,467	)		(10,795	)
Income before income tax (expense) benefit		140,133			111,756
Income tax (expense) benefit		(944	)		1,442
Income from continuing operations before real estate joint venture activity		139,189			113,198
Income from real estate joint venture		385			379
Net income		139,574			113,577
Net income attributable to noncontrolling interests		3,664			2,775
Net income available for shareholders		135,910			110,802
Dividends to MAA Series I preferred shareholders		922			922
Net income available for MAA common shareholders	$	134,988		$	109,880
Earnings per common share - basic:
Net income available for MAA common shareholders	$	1.16		$	0.95
Earnings per common share - diluted:
Net income available for MAA common shareholders	$	1.16		$	0.95

See accompanying notes to condensed consolidated financial statements.

6

Mid-America Apartment Communities, Inc.

Condensed Consolidated Statements of Comprehensive Income

(Unaudited)

(Dollars in thousands)

	Three months ended March 31,
	2023			2022
Net income	$	139,574		$	113,577
Other comprehensive income:
Adjustment for net losses reclassified to net income from    derivative instruments		278			279
Total comprehensive income		139,852			113,856
Less: Comprehensive income attributable to    noncontrolling interests		(3,681	)		(2,782	)
Comprehensive income attributable to MAA	$	136,171		$	111,074

See accompanying notes to condensed consolidated financial statements.

7

Mid-America Apartment Communities, Inc.

Condensed Consolidated Statements of Cash Flows

(Unaudited)

(Dollars in thousands)

	Three months ended March 31,
Cash flows from operating activities:	2023			2022
Net income	$	139,574		$	113,577
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization		138,758			133,986
(Gain) loss on sale of depreciable real estate assets		(15	)		1
Gain on sale of non-depreciable real estate assets		(54	)		(23	)
Gain on embedded derivative in preferred shares		(4,435	)		(11,896	)
Stock compensation expense		5,578			6,640
Amortization of debt issuance costs, discounts and premiums		1,517			1,510
Loss on investments		1,024			10,233
Net change in operating accounts and other operating activities		(63,637	)		(74,405	)
Net cash provided by operating activities		218,310			179,623
Cash flows from investing activities:
Purchases of real estate and other assets		(12,450	)		(5,232	)
Capital improvements and other		(75,622	)		(38,212	)
Development costs		(52,851	)		(42,780	)
Distributions from real estate joint venture		—			95
Contributions to affiliates		(1,250	)		(7,500	)
Proceeds from real estate asset dispositions		3,024			24
Net proceeds from insurance recoveries		764			10,073
Net cash used in investing activities		(138,385	)		(83,532	)
Cash flows from financing activities:
Net (payments of) proceeds from commercial paper		(20,000	)		20,000
Principal payments on notes payable		(362	)		(343	)
Distributions to noncontrolling interests		(4,429	)		(3,484	)
Dividends paid on common shares		(161,683	)		(125,432	)
Dividends paid on preferred shares		(922	)		(922	)
Proceeds from issuances of common shares		204,077			164
Acquisition of noncontrolling interests		—			(43,070	)
Net change in other financing activities		(1,660	)		(978	)
Net cash provided by (used in) financing activities		15,021			(154,065	)
Net increase (decrease) in cash, cash equivalents and restricted cash		94,946			(57,974	)
Cash, cash equivalents and restricted cash, beginning of period		61,071			130,598
Cash, cash equivalents and restricted cash, end of period	$	156,017		$	72,624

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 at period end:
Cash and cash equivalents	$	142,411	$	60,371
Restricted cash		13,606		12,253
Total cash, cash equivalents and restricted cash	$	156,017	$	72,624
Supplemental information:
Interest paid	$	29,516	$	30,427
Income taxes paid		25		—
Non-cash transactions:
Conversion of OP Units to shares of common stock	$	479	$	193
Accrued construction in progress		31,492		38,191
Interest capitalized		2,746		1,836

See accompanying notes to condensed consolidated financial statements.

8

Mid-America Apartments, L.P.

Condensed Consolidated Balance Sheets

(Unaudited)

(Dollars in thousands)

	March 31, 2023			December 31, 2022
Assets
Real estate assets:
Land	$	2,008,523		$	2,008,364
Buildings and improvements and other		12,924,101			12,841,947
Development and capital improvements in progress		391,439			332,035
		15,324,063			15,182,346
Less: Accumulated depreciation		(4,440,520	)		(4,302,747	)
		10,883,543			10,879,599
Undeveloped land		73,861			64,312
Investment in real estate joint venture		42,333			42,290
Real estate assets, net		10,999,737			10,986,201
Cash and cash equivalents		142,411			38,659
Restricted cash		13,606			22,412
Other assets		196,557			193,893
Total assets	$	11,352,311		$	11,241,165
Liabilities and capital
Liabilities:
Unsecured notes payable	$	4,032,000		$	4,050,910
Secured notes payable		363,650			363,993
Accrued expenses and other liabilities		566,075			615,843
Due to general partner		19			19
Total liabilities		4,961,744			5,030,765
Redeemable common units		19,590			20,671
Operating Partnership capital:
Preferred units, 8.50% Series I Cumulative Redeemable Units, 867,846 preferred units    outstanding as of March 31, 2023 and December 31, 2022, respectively		66,840			66,840
General partner, 116,600,756 and 115,480,336 OP Units outstanding as of March 31,    2023 and December 31, 2022, respectively (1)		6,126,498			5,948,498
Limited partners, 3,155,699 and 3,164,933 OP Units outstanding as of March 31, 2023    and December 31, 2022, respectively (1)		166,309			163,595
Accumulated other comprehensive loss		(9,990	)		(10,268	)
Total operating partners’ capital		6,349,657			6,168,665
Noncontrolling interests - consolidated real estate entities		21,320			21,064
Total equity		6,370,977			6,189,729
Total liabilities and equity	$	11,352,311		$	11,241,165

(1) Number of units outstanding represents 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 March 31, 2023 and December 31, 2022 are 129,704 and 136,429, respectively.

See accompanying notes to condensed consolidated financial statements.

9

Mid-America Apartments, L.P.

Condensed Consolidated Statements of Operations

(Unaudited)

(Dollars in thousands, except per unit data)

	Three months ended March 31,
	2023			2022
Revenues:
Rental and other property revenues	$	529,033		$	476,078
Expenses:
Operating expenses, excluding real estate taxes and insurance		108,604			101,117
Real estate taxes and insurance		74,199			68,303
Depreciation and amortization		138,501			133,738
Total property operating expenses		321,304			303,158
Property management expenses		17,928			16,537
General and administrative expenses		15,923			16,323
Interest expense		37,281			39,121
(Gain) loss on sale of depreciable real estate assets		(15	)		1
Gain on sale of non-depreciable real estate assets		(54	)		(23	)
Other non-operating income		(3,467	)		(10,795	)
Income before income tax (expense) benefit		140,133			111,756
Income tax (expense) benefit		(944	)		1,442
Income from continuing operations before real estate joint venture activity		139,189			113,198
Income from real estate joint venture		385			379
Net income		139,574			113,577
Net loss attributable to noncontrolling interests		—			(293	)
Net income available for MAALP unitholders		139,574			113,870
Distributions to MAALP Series I preferred unitholders		922			922
Net income available for MAALP common unitholders	$	138,652		$	112,948
Earnings per common unit - basic:
Net income available for MAALP common unitholders	$	1.16		$	0.95
Earnings per common unit - diluted:
Net income available for MAALP common unitholders	$	1.16		$	0.95

See accompanying notes to condensed consolidated financial statements.

10

Mid-America Apartments, L.P.

Condensed Consolidated Statements of Comprehensive Income

(Unaudited)

(Dollars in thousands)

	Three months ended March 31,
	2023		2022
Net income	$	139,574	$	113,577
Other comprehensive income:
Adjustment for net losses reclassified to net income from    derivative instruments		278		279
Total comprehensive income		139,852		113,856
Add: Comprehensive loss attributable to noncontrolling    interests		—		293
Comprehensive income attributable to MAALP	$	139,852	$	114,149

See accompanying notes to condensed consolidated financial statements.

11

Mid-America Apartments, L.P.

Condensed Consolidated Statements of Cash Flows

(Unaudited)

(Dollars in thousands)

	Three months ended March 31,
Cash flows from operating activities:	2023			2022
Net income	$	139,574		$	113,577
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization		138,758			133,986
(Gain) loss on sale of depreciable real estate assets		(15	)		1
Gain on sale of non-depreciable real estate assets		(54	)		(23	)
Gain on embedded derivative in preferred shares		(4,435	)		(11,896	)
Stock compensation expense		5,578			6,640
Amortization of debt issuance costs, discounts and premiums		1,517			1,510
Loss on investments		1,024			10,233
Net change in operating accounts and other operating activities		(63,637	)		(74,405	)
Net cash provided by operating activities		218,310			179,623
Cash flows from investing activities:
Purchases of real estate and other assets		(12,450	)		(5,232	)
Capital improvements and other		(75,622	)		(38,212	)
Development costs		(52,851	)		(42,780	)
Distributions from real estate joint venture		—			95
Contributions to affiliates		(1,250	)		(7,500	)
Proceeds from real estate asset dispositions		3,024			24
Net proceeds from insurance recoveries		764			10,073
Net cash used in investing activities		(138,385	)		(83,532	)
Cash flows from financing activities:
Net (payments of) proceeds from commercial paper		(20,000	)		20,000
Principal payments on notes payable		(362	)		(343	)
Distributions paid on common units		(166,112	)		(128,916	)
Distributions paid on preferred units		(922	)		(922	)
Proceeds from issuances of common units		204,077			164
Acquisition of noncontrolling interests		—			(43,070	)
Net change in other financing activities		(1,660	)		(978	)
Net cash provided by (used in) financing activities		15,021			(154,065	)
Net increase (decrease) in cash, cash equivalents and restricted cash		94,946			(57,974	)
Cash, cash equivalents and restricted cash, beginning of period		61,071			130,598
Cash, cash equivalents and restricted cash, end of period	$	156,017		$	72,624

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 at period end:
Cash and cash equivalents	$	142,411	$	60,371
Restricted cash		13,606		12,253
Total cash, cash equivalents and restricted cash	$	156,017	$	72,624
Supplemental information:
Interest paid	$	29,516	$	30,427
Non-cash transactions:
Accrued construction in progress	$	31,492	$	38,191
Interest capitalized		2,746		1,836

See accompanying notes to condensed consolidated financial statements.

12

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

Notes to Condensed Consolidated Financial Statements

(Unaudited)

1. Organization and Summary of 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, “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 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 March 31, 2023, MAA owned 116,600,756 OP Units (or 97.4% 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 a readers’ understanding of MAA and the Operating Partnership by enabling the reader to view the business as a whole in the same manner that management views and operates the business;

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

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

MAA, an S&P 500 company, 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 from time to time. 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 interests, treasury shares, accumulated other comprehensive income or loss 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 interests, accumulated other comprehensive income or loss and redeemable common units. Holders of OP Units (other than MAA) 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.

13

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 U.S. As of March 31, 2023, the Company owned and operated 290 apartment communities (which does not include development communities under construction) 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 March 31, 2023, the Company also had six development communities under construction totaling 2,310 apartment units once complete. Total expected costs for the six development projects are $731.5 million, of which $342.6 million had been incurred through March 31, 2023. The Company expects to complete two developments in 2023, two developments in 2024 and two developments in 2025. As of March 31, 2023, 34 of the Company’s apartment communities included retail components. The Company’s apartment communities, including development communities under construction, were located across 16 states and the District of Columbia as of March 31, 2023.

Basis of Presentation and Principles of Consolidation

The accompanying condensed consolidated financial statements have been prepared by the Company’s management in accordance with U.S. 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. 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 that 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 because 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 significant influence or control include ownership of voting interests and participatory rights of investors (see “Investments in Unconsolidated Affiliates” below).

Noncontrolling Interests

As of March 31, 2023, 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; and (2) noncontrolling interests related to its consolidated real estate entities. The noncontrolling interests 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.

The noncontrolling interests relating to the Company’s five consolidated real estate entities are owned by private real estate companies that are generally responsible for the development, construction and lease-up of the apartment communities that are owned through the consolidated real estate entities with a noncontrolling interest. The entities were determined to be VIE’s with the Company designated as the primary beneficiary. As a result, the accounts of the entities are consolidated by the Company. As of March 31, 2023, the consolidated assets of the Company’s consolidated real estate entities with a noncontrolling interest were $300.1 million, and consolidated liabilities were $22.3 million. As of December 31, 2022, the consolidated assets of the Company’s consolidated real estate entities with a noncontrolling interest were $279.6 million, and consolidated liabilities were $14.5 million. During the three months ended March 31, 2022, the Company paid $43.1 million to acquire the noncontrolling interest of one consolidated real estate entity.

14

Investments in Unconsolidated Affiliates

The Company uses the equity method to account for its investments in a real estate joint venture and five technology-focused limited partnerships that each qualify as a VIE. Management determined the Company is not the primary beneficiary in any of these investments but does have the ability to exert significant influence over the operations and financial policies of the real estate joint venture and considers its investments in the limited partnerships to be more than minor. The Company’s investment in the real estate joint venture was $42.3 million as of March 31, 2023 and December 31, 2022, respectively, and is included in “Investment in real estate joint venture” in the accompanying Condensed Consolidated Balance Sheets.

The Company accounts for its investments in the technology-focused limited partnerships on a three month lag due to the timing the limited partnerships’ financial information is made available to the Company. As of March 31, 2023 and December 31, 2022, the Company’s investments in the limited partnerships were $30.1 million and $36.7 million, respectively, and are included in “Other assets” in the accompanying Condensed Consolidated Balance Sheets with any related gains and losses, including unrealized gains and losses, recognized in “Other non-operating income” in the accompanying Condensed Consolidated Statements of Operations. The decrease in the Company’s investments in the limited partnerships was primarily driven by the distribution of publicly traded marketable securities. During the three months ended March 31, 2023 and 2022, the Company recognized $0.1 million and $8.7 million of expense, respectively, from its investments in the limited partnerships. As of March 31, 2023, the Company was committed to make additional capital contributions totaling $44.0 million if and when called by the general partners of the limited partnerships.

Marketable Equity Securities

During the three months ended March 31, 2023, two of the technology-focused limited partnerships that are accounted for as investments in unconsolidated affiliates distributed publicly traded marketable equity securities to the Company and the other limited partners. The Company’s investment in marketable equity securities is measured at fair value based on the quoted share price of the securities and is included in “Other assets” in the accompanying Condensed Consolidated Balance Sheets, with any related gains and losses, including unrealized gains and losses, recognized in “Other non-operating income” in the accompanying Condensed Consolidated Statements of Operations. As of March 31, 2023 and December 31, 2022, the Company’s investment in the marketable equity securities was $14.9 million and $8.0 million, respectively. During the three months ended March 31, 2023 and 2022, the Company recognized $0.9 million and $1.5 million of expense, respectively, from its investment in marketable equity securities.

Revenue Recognition

The Company primarily leases multifamily residential apartments to residents under operating leases generally due on a monthly basis with terms of approximately one year or less. Rental revenues are recognized in accordance with Accounting Standards Codification (“ASC”) Topic 842, Leases, 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 residents, 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 94% of the Company’s total revenues and include gross rents charged less adjustments for concessions and bad debt. Approximately 5% of the Company’s total revenues represent non-lease reimbursable property revenues from its residents for utility reimbursements, which are generally recognized and due on a monthly basis as residents obtain control of the service over the term of the lease. The remaining 1% of the Company’s total revenues represents other non-lease property revenues primarily driven by nonrefundable fees and commissions which are recognized when earned.

In accordance with ASC Topic 842, rental revenues and non-lease reimbursable property revenues meet the criteria to be aggregated into a single lease component and are reported on a combined basis in the line item “Rental revenues,” as presented in the disaggregation of the Company’s revenues in Note 11. Other non-lease property revenues are accounted for in accordance with ASC Topic 606, Revenue from Contracts with Customers, which requires revenue recognized outside of the scope of ASC Topic 842 to be 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. Other non-lease property revenues are reported in the line item “Other property revenues”, as presented in the disaggregation of the Company’s revenues in Note 11.

Leases

The Company is the lessee under certain ground, office, equipment and other operational leases, all of which are accounted for as operating leases in accordance with ASC Topic 842. The Company recognizes a right-of-use asset for the right to use the underlying asset for all leases where the Company is the lessee with terms of more than twelve months, and a related lease liability for the obligation to make lease payments. Expenses related to leases determined to be operating leases are recognized on a straight-line basis. As of March 31, 2023 and December 31, 2022, right-of-use assets recorded within “Other assets” totaled $44.0 million and $44.6 million, respectively, and related lease liabilities recorded within “Accrued expenses and other liabilities” totaled $28.3 million and $28.7 million, respectively, in the Condensed Consolidated Balance Sheets. Lease expense recognized for the three months ended March 31, 2023 and 2022 was immaterial to the Company. Cash paid for amounts included in the measurement of operating lease liabilities during the three months ended March 31, 2023 and 2022 was also immaterial. See Note 10 for additional disclosures regarding leases.

15

Fair Value Measurements

The Company applies the guidance in ASC Topic 820, Fair Value Measurements and Disclosures, to the valuation of real estate assets recorded at fair value, to its impairment valuation analysis of real estate assets and to its valuation and disclosure of the fair value of financial instruments, which primarily consists of marketable equity securities, indebtedness and derivative instruments. Fair value disclosures required under ASC Topic 820 as well as the Company’s derivative accounting policies 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.

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 common shareholders and, accordingly, are considered participating securities that are included in the two-class method of computing basic earnings per share. Both the unvested restricted shares and other potentially dilutive common shares, and the related impact to earnings, are considered when calculating earnings per share on a diluted basis with 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 months ended March 31, 2023 and 2022, 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 March 31,
	2023			2022
Calculation of Earnings per common share - basic
Net income	$	139,574		$	113,577
Net income attributable to noncontrolling interests		(3,664	)		(2,775	)
Unvested restricted shares (allocation of earnings)		(60	)		(79	)
Dividends to MAA Series I preferred shareholders		(922	)		(922	)
Net income available for MAA common shareholders, adjusted	$	134,928		$	109,801
Weighted average common shares - basic		116,182			115,259
Earnings per common share - basic	$	1.16		$	0.95
Calculation of Earnings per common share - diluted
Net income	$	139,574		$	113,577
Net income attributable to noncontrolling interests (1)		(3,664	)		(2,775	)
Dividends to MAA Series I preferred shareholders		(922	)		(922	)
Net income available for MAA common shareholders, adjusted	$	134,988		$	109,880
Weighted average common shares - basic		116,182			115,259
Effect of dilutive securities		220			459
Weighted average common shares - diluted		116,402			115,718
Earnings per common share - diluted	$	1.16		$	0.95

(1)For the three months ended March 31, 2023 and 2022, 3.2 million OP Units and their related income are not included in the diluted earnings per share calculations as they are not dilutive.

16

3. Earnings per OP Unit of MAALP

Basic earnings per common unit is computed 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 months ended March 31, 2023 and 2022, MAALP’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 March 31,
	2023			2022
Calculation of Earnings per common unit - basic
Net income	$	139,574		$	113,577
Net loss attributable to noncontrolling interests		—			293
Unvested restricted units (allocation of earnings)		(60	)		(79	)
Distributions to MAALP Series I preferred unitholders		(922	)		(922	)
Net income available for MAALP common unitholders, adjusted	$	138,592		$	112,869
Weighted average common units - basic		119,340			118,462
Earnings per common unit - basic	$	1.16		$	0.95
Calculation of Earnings per common unit - diluted
Net income	$	139,574		$	113,577
Net loss attributable to noncontrolling interests		—			293
Distributions to MAALP Series I preferred unitholders		(922	)		(922	)
Net income available for MAALP common unitholders, adjusted	$	138,652		$	112,948
Weighted average common units - basic		119,340			118,462
Effect of dilutive securities		220			459
Weighted average common units - diluted		119,560			118,921
Earnings per common unit - diluted	$	1.16		$	0.95

17

4. MAA Equity

Changes in MAA’s total equity and its components for the three months ended March 31, 2023 and 2022 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, 2022	$	9	$	1,152	$	7,202,834		$	(1,188,854	)	$	(10,052	)	$	163,595		$	21,064	$	6,189,748
Net income		—		—		—			135,910			—			3,664			—		139,574
Other comprehensive income - derivative     instruments		—		—		—			—			261			17			—		278
Issuance and registration of common shares		—		11		203,886			—			—			—			—		203,897
Shares repurchased and retired		—		—		(1,920	)		—			—			—			—		(1,920	)
Shares issued in exchange for common units		—		—		479			—			—			(479	)		—		—
Shares issued in exchange for redeemable stock		—		4		577			—			—			—			—		581
Redeemable stock fair market value     adjustment		—		—		—			793			—			—			—		793
Adjustment for noncontrolling interests in    Operating Partnership		—		—		(3,928	)		—			—			3,928			—		—
Amortization of unearned compensation		—		—		6,379			—			—			—			—		6,379
Dividends on preferred stock		—		—		—			(922	)		—			—			—		(922	)
Dividends on common stock ($1.4000 per     share)		—		—		—			(163,252	)		—			—			—		(163,252	)
Dividends on noncontrolling interests units    ($1.4000 per share)		—		—		—			—			—			(4,416	)		—		(4,416	)
Distribution from noncontrolling interest		—		—		—			—			—			—			256		256
EQUITY BALANCE MARCH 31, 2023	$	9	$	1,167	$	7,408,307		$	(1,216,325	)	$	(9,791	)	$	166,309		$	21,320	$	6,370,996

	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, 2021	$	9	$	1,151	$	7,230,956		$	(1,255,807	)	$	(11,132	)	$	165,116		$	23,614		$	6,153,907
Net income (loss)		—		—		—			110,802			—			3,068			(293	)		113,577
Other comprehensive income - derivative     instruments		—		—		—			—			272			7			—			279
Issuance and registration of common shares		—		—		21			—			—			—			—			21
Shares repurchased and retired		—		—		(3,162	)		—			—			—			—			(3,162	)
Exercise of stock options		—		—		28			—			—			—			—			28
Shares issued in exchange for common units		—		—		193			—			—			(193	)		—			—
Redeemable stock fair market value     adjustment		—		—		—			2,533			—			—			—			2,533
Adjustment for noncontrolling interests in    Operating Partnership		—		—		953			—			—			(953	)		—			—
Amortization of unearned compensation		—		—		6,928			—			—			—			—			6,928
Dividends on preferred stock		—		—		—			(922	)		—			—			—			(922	)
Dividends on common stock ($1.0875 per    share)		—		—		—			(125,433	)		—			—			—			(125,433	)
Dividends on noncontrolling interests units    ($1.0875 per share)		—		—		—			—			—			(3,479	)		—			(3,479	)
Acquisition of noncontrolling interest		—		—		(37,443	)		—			—			—			(5,627	)		(43,070	)
Contribution from noncontrolling interest		—		—		—			—			—			—			2,155			2,155
EQUITY BALANCE MARCH 31, 2022	$	9	$	1,151	$	7,198,474		$	(1,268,827	)	$	(10,860	)	$	163,566		$	19,849		$	6,103,362

18

5. MAALP Capital

Changes in MAALP’s total capital and its components for the three months ended March 31, 2023 and 2022 were as follows (dollars in thousands):

	Mid-America Apartments, L.P. Unitholders’ Capital
	General Partner			Limited Partners			Preferred Units			Accumulated Other Comprehensive Loss			Noncontrolling Interests - Consolidated Real Estate Entities		Total Partnership Capital
CAPITAL BALANCE DECEMBER 31, 2022	$	5,948,498		$	163,595		$	66,840		$	(10,268	)	$	21,064	$	6,189,729
Net income		134,988			3,664			922			—			—		139,574
Other comprehensive income - derivative instruments		—			—			—			278			—		278
Issuance of units		203,897			—			—			—			—		203,897
Units repurchased and retired		(1,920	)		—			—			—			—		(1,920	)
General partnership units issued in exchange for limited     partnership units		479			(479	)		—			—			—		—
Units issued in exchange for redeemable stock		581			—			—			—			—		581
Redeemable units fair market value adjustment		793			—			—			—			—		793
Adjustment for limited partners’ capital at redemption value		(3,945	)		3,945			—			—			—		—
Amortization of unearned compensation		6,379			—			—			—			—		6,379
Distributions to preferred unitholders		—			—			(922	)		—			—		(922	)
Distributions to common unitholders ($1.4000 per unit)		(163,252	)		(4,416	)		—			—			—		(167,668	)
Distribution from noncontrolling interest		—			—			—			—			256		256
CAPITAL BALANCE MARCH 31, 2023	$	6,126,498		$	166,309		$	66,840		$	(9,990	)	$	21,320	$	6,370,977

	Mid-America Apartments, L.P. Unitholders’ Capital
	General Partner			Limited Partners			Preferred Units			Accumulated Other Comprehensive Loss			Noncontrolling Interests - Consolidated Real Estate Entities			Total Partnership Capital
CAPITAL BALANCE DECEMBER 31, 2021	$	5,909,700		$	165,116		$	66,840		$	(11,382	)	$	23,614		$	6,153,888
Net income (loss)		109,880			3,068			922			—			(293	)		113,577
Other comprehensive income - derivative instruments		—			—			—			279			—			279
Issuance of units		21			—			—			—			—			21
Units repurchased and retired		(3,162	)		—			—			—			—			(3,162	)
Exercise of unit options		28			—			—			—			—			28
General partnership units issued in exchange for limited     partnership units		193			(193	)		—			—			—			—
Redeemable units fair market value adjustment		2,533			—			—			—			—			2,533
Adjustment for limited partners’ capital at redemption value		946			(946	)		—			—			—			—
Amortization of unearned compensation		6,928			—			—			—			—			6,928
Distributions to preferred unitholders		—			—			(922	)		—			—			(922	)
Distributions to common unitholders ($1.0875 per unit)		(125,433	)		(3,479	)		—			—			—			(128,912	)
Acquisition of noncontrolling interest		(37,443	)		—			—			—			(5,627	)		(43,070	)
Contribution from noncontrolling interest		—			—			—			—			2,155			2,155
CAPITAL BALANCE MARCH 31, 2022	$	5,864,191		$	163,566		$	66,840		$	(11,103	)	$	19,849		$	6,103,343

6. Borrowings

The following table summarizes the Company’s outstanding debt as of March 31, 2023 (dollars in thousands):

	Balance			Weighted Average Effective Rate			Weighted Average Contract Maturity
Unsecured debt
Fixed rate senior notes	$	4,050,000			3.4	%	5/14/2029
Debt issuance costs, discounts, premiums and fair market value adjustments		(18,000	)
Total unsecured debt	$	4,032,000			3.4	%
Secured debt
Fixed rate property mortgages	$	366,792			4.4	%	11/4/2048
Debt issuance costs		(3,142	)
Total secured debt	$	363,650			4.4	%
Total outstanding debt	$	4,395,650			3.4	%

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Unsecured Revolving Credit Facility

MAALP has entered into an unsecured revolving credit facility, with a borrowing capacity of $1.25 billion with an option to expand to $2.0 billion. The revolving credit facility bears interest at an adjusted Secured Overnight Financing Rate plus a spread of 0.70% to 1.40% based on an investment grade pricing grid. The revolving credit facility has a maturity date in October 2026 with an option to extend for two additional six-month periods. As of March 31, 2023, there was no outstanding balance under the revolving credit facility, while $4.3 million of capacity was used to support outstanding letters of credit.

Unsecured Commercial Paper

MAALP has established an unsecured commercial paper program whereby MAALP may issue unsecured commercial paper notes with varying maturities not to exceed 397 days up to a maximum aggregate principal amount outstanding of $625.0 million. As of March 31, 2023, there was no outstanding balance under the commercial paper program. For the three months ended March 31, 2023, the average daily borrowings outstanding under the commercial paper program were $8.2 million.

Unsecured Senior Notes

As of March 31, 2023, MAALP had $4.1 billion of publicly issued unsecured senior notes outstanding. The unsecured senior notes had maturities at issuance ranging from 5 to 30 years, with a weighted average maturity in 2029.

Secured Property Mortgages

As of March 31, 2023, MAALP had $366.8 million of fixed rate conventional property mortgages with a weighted average maturity in 2048.

As of March 31, 2023, MAALP’s debt obligations over the next 12 months consist of approximately $352 million of principal obligations, including $350.0 million of unsecured senior notes due October 2023.

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 March 31, 2023 and December 31, 2022 totaled $4.4 billion and $4.4 billion, respectively, and had estimated fair values of $4.0 billion and $3.9 billion (excluding prepayment penalties) as of March 31, 2023 and December 31, 2022, 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. As of March 31, 2023, the Company had no variable rate debt outstanding. The carrying value of variable rate debt as of December 31, 2022 totaled $20.0 million and had an estimated fair value of $20.0 million. The fair value of variable rate debt is determined using the stated variable rate plus the current market credit spread. The variable rates reset at various maturities typically less than 30 days, and management concluded these rates reasonably estimate current market rates.

Financial Instruments Measured at Fair Value on a Recurring Basis

As of March 31, 2023, the Company had one outstanding series of cumulative redeemable preferred stock, which is referred to as the MAA Series I preferred stock (see Note 8). The Company has recognized a derivative asset related to the redemption feature embedded in the MAA Series I preferred stock. The derivative asset 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. The analysis reflects the contractual terms of the redeemable preferred shares, which are redeemable at the Company’s option beginning on October 1, 2026 at the redemption price of $50.00 per share. The Company uses various inputs in the analysis, including trading data available on the preferred shares, estimated coupon yields on preferred stock instruments from REITs with similar credit ratings as MAA and treasury rates to estimate 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 of March 31, 2023 and December 31, 2022, the fair value of the embedded derivative was $17.8 million and $13.4 million, respectively.

The Company has determined the majority of the inputs used to value its outstanding debt and its embedded derivative fall within Level 2 of the fair value hierarchy, and as a result, the fair value valuations of its debt and embedded derivative held as of March 31, 2023 and December 31, 2022 were classified as Level 2 in the fair value hierarchy. The fair value of the Company’s marketable equity securities discussed in Note 1 is based on quoted market prices and are classified as Level 1 in the fair value hierarchy.

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Terminated Cash Flow Hedges of Interest

As of March 31, 2023, the Company had $10.0 million recorded in “Accumulated other comprehensive loss”, or AOCL, related to realized losses associated with terminated interest rate swaps that were designated as cash flow hedging instruments prior to their termination. The realized losses associated with the terminated interest rate swaps are reclassified to interest expense as interest payments are made on the Company’s debt and will continue to be reclassified to interest expense until the debt’s maturity. During the next twelve months, the Company estimates an additional $1.6 million will be reclassified to earnings as an increase to “Interest expense.”

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 months ended March 31, 2023 and 2022 (dollars in thousands):

		Net Loss Reclassified from AOCL into Interest Expense
	Location of Loss Reclassified	Three months ended March 31,
Derivatives in Cash Flow Hedging Relationships	from AOCL into Income	2023			2022
Terminated interest rate swaps	Interest expense	$	(278	)	$	(279	)

		Gain Recognized in Earnings on Derivative
	Location of Gain Recognized	Three months ended March 31,
Derivative Not Designated as Hedging Instrument	in Earnings on Derivative	2023		2022
Preferred stock embedded derivative	Other non-operating income	$	4,435	$	11,896

8. Shareholders’ Equity of MAA

As of March 31, 2023, 116,600,756 shares of common stock of MAA and 3,155,699 OP Units (excluding the OP Units held by MAA) were issued and outstanding, representing a total of 119,756,455 common shares and units. As of March 31, 2022, 115,337,466 shares of common stock of MAA and 3,202,377 OP Units (excluding the OP Units held by MAA) were issued and outstanding, representing a total of 118,539,843 common shares and units.

Preferred Stock

As of March 31, 2023, 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
MAA 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.

See Note 7 for details of the valuation of the derivative asset related to the redemption feature embedded in the MAA Series I preferred stock.

Equity Forward Sale Agreements

In August 2021, MAA entered into two 18-month forward sale agreements with respect to a total of 1.1 million shares of its common stock at an initial forward sale price of $190.56 per share, which is net of issuance costs. Under the forward sale agreements, the forward sale price was subject to adjustment on a daily basis based on a floating interest rate factor equal to a specified daily rate less a spread and was decreased based on amounts related to dividends on MAA’s common stock during the term of the forward sale agreements. No shares had been settled under the forward sale agreements as of December 31, 2022. In January 2023, MAA settled its two forward sale agreements with respect to a total of 1.1 million shares at a forward price per share of $185.23, which is inclusive of adjustments made to reflect the then-current federal funds rate, the amount of dividends paid to holders of MAA common stock and commissions paid to sales agents, for net proceeds of $203.7 million. The impact of the outstanding forward sales agreements was not dilutive to the Company’s diluted earnings per share for the three months ended March 31, 2022.

At-the-Market Share Offering Program

The Company has entered into an equity distribution agreement to establish an at-the-market, or ATM, share offering program, which allows MAA to sell shares of its common stock from time to time to or through its sales agents into the existing market at current market prices, and to enter into separate forward sales agreements to or through its forward purchasers. Under its ATM program, MAA has the authority to issue up to an aggregate of 4.0 million shares of its common stock, at such times to be determined by MAA. MAA has no obligation to issue shares through the ATM program. During the three months ended March 31, 2023 and 2022, MAA did not sell any shares of common stock under its ATM program. As of March 31, 2023, 4.0 million shares remained issuable under the ATM program.

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9. Partners’ Capital of MAALP

Common units of limited partnership interests in MAALP are represented by OP Units. As of March 31, 2023, there were 119,756,455 OP Units outstanding, 116,600,756, or 97.4%, 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 3,155,699 OP Units were Class A OP Units owned by Class A limited partners. As of March 31, 2022, there were 118,539,843 OP Units outstanding, 115,337,466, or 97.3%, of which were owned by MAA and 3,202,377 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 to it 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 of MAALP (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.

In January 2023, MAA settled its two forward sale agreements with respect to a total of 1.1 million shares for net proceeds of $203.7 million. MAA contributed the proceeds to MAALP in exchange for the issuance of 1.1 million Class B OP Units.

As of March 31, 2023, a total of 3,155,699 Class A OP Units were outstanding and redeemable for 3,155,699 shares of MAA common stock, with an approximate value of $476.6 million, based on the closing price of MAA’s common stock on March 31, 2023 of $151.04 per share. As of March 31, 2022, a total of 3,202,377 Class A OP Units were outstanding and redeemable for 3,202,377 shares of MAA common stock, with an approximate value of $670.7 million, based on the closing price of MAA’s common stock on March 31, 2022 of $209.45 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 March 31, 2023, 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 March 31, 2023, 867,846 units of the MAALP Series I preferred units were outstanding and owned by MAA. See Note 7 for details of the valuation of the derivative asset related to the redemption feature embedded in the MAALP Series I preferred units.

10. Commitments and Contingencies

Leases

The Company’s operating 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 commitments related to negligible office and equipment operating leases. As of March 31, 2023, the Company’s operating leases had a weighted average remaining lease term of approximately 33 years and a weighted average discount rate of approximately 4.5%.

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The table below reconciles undiscounted cash flows for each of the first five years and total of the remaining years to the right-of-use lease liabilities recorded on the Condensed Consolidated Balance Sheets as of March 31, 2023 (in thousands):

	Operating Leases
2023	$	2,162
2024		2,862
2025		2,872
2026		2,920
2027		2,969
Thereafter		57,024
Total minimum lease payments		70,809
Net present value adjustments		(42,519	)
Right-of-use lease liabilities	$	28,290

Loss Contingencies

In late 2022 and early 2023, 28 putative class action lawsuits were filed against RealPage, Inc., along with over 50 of the largest owners and operators of apartment communities in the country, including the Company (the “RealPage Litigation”) alleging that RealPage and lessors of multifamily residential real estate conspired to artificially inflate the prices of multifamily residential real estate above competitive levels through the use of RealPage’s revenue management software. The plaintiffs are seeking monetary damages and attorneys’ fees and costs and injunctive relief. The Company believes the RealPage Litigation is without merit as it pertains to the Company and plans to vigorously defend the RealPage Litigation. On April 10, 2023, the Joint Panel on Multidistrict Litigation issued an order centralizing the cases in the Middle District of Tennessee for coordinated or consolidated pretrial proceedings. The Company is unable to predict the outcome of the RealPage Litigation given its early stage. While the Company does not believe that the RealPage Litigation will have a material adverse effect on its financial condition, the Company cannot give assurance that the RealPage Litigation will not have a material effect on its results of operations.

The Company is subject to various other legal proceedings and claims that arise in the ordinary course of its business operations. While the resolution of these matters cannot be predicted with certainty, management does not currently believe that these 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. Matters that arise out of allegations of bodily injury, property damage and employment practices are generally covered by insurance.

As of March 31, 2023 and December 31, 2022, the Company’s accrual for loss contingencies relating to unresolved legal matters, including the cost to defend, was $9.8 million and $10.0 million in the aggregate, respectively. The loss contingencies are presented in “Accrued expenses and other liabilities” in the accompanying Condensed Consolidated Balance Sheets.

11. Segment Information

As of March 31, 2023, the Company owned and operated 290 multifamily apartment communities (which does not include development communities under construction) in 15 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. The Company has aggregated its operating segments into two reportable segments as management believes the apartment communities in each reportable segment generally have similar economic characteristics, facilities, services and residents.

The following reflects the two reportable segments for the Company:

•Same Store includes communities that the Company has owned and which have been stabilized for at least a full 12 months as of the first day of the calendar year.

•Non-Same Store and Other includes recently acquired communities, communities being developed or in lease-up, communities that have been disposed of or identified for disposition, communities that have experienced a significant casualty loss and stabilized communities that do not meet the requirements to be Same Store communities. Also included in Non-Same Store and Other are non-multifamily activities and storm related expenses related to hurricanes.

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. Communities previously in development or lease-up are added to the Same Store segment on the first day of the calendar year after the community has been owned and stabilized for at least a full 12 months. Communities are considered stabilized when achieving 90% average physical occupancy for 90 days.

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The chief operating decision maker utilizes net operating income, or NOI, in evaluating the performance of the 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 directly related to property operating performance.

Revenues and NOI for each reportable segment for the three months ended March 31, 2023 and 2022 were as follows (in thousands):

	Three months ended March 31,
	2023			2022
Revenues:
Same Store
Rental revenues	$	497,250		$	447,599
Other property revenues		2,760			2,724
Total Same Store revenues		500,010			450,323
Non-Same Store and Other
Rental revenues		28,843			25,516
Other property revenues		180			239
Total Non-Same Store and Other revenues		29,023			25,755
Total rental and other property revenues	$	529,033		$	476,078
Net Operating Income:
Same Store NOI	$	328,940		$	292,436
Non-Same Store and Other NOI		17,290			14,222
Total NOI		346,230			306,658
Depreciation and amortization		(138,501	)		(133,738	)
Property management expenses		(17,928	)		(16,537	)
General and administrative expenses		(15,923	)		(16,323	)
Interest expense		(37,281	)		(39,121	)
Gain (loss) on sale of depreciable real estate assets		15			(1	)
Gain on sale of non-depreciable real estate assets		54			23
Other non-operating income		3,467			10,795
Income tax (expense) benefit		(944	)		1,442
Income from real estate joint venture		385			379
Net income attributable to noncontrolling interests		(3,664	)		(2,775	)
Dividends to MAA Series I preferred shareholders		(922	)		(922	)
Net income available for MAA common shareholders	$	134,988		$	109,880

Assets for each reportable segment as of March 31, 2023 and December 31, 2022 were as follows (in thousands):

	March 31, 2023		December 31, 2022
Assets:
Same Store	$	9,650,594	$	9,697,889
Non-Same Store and Other		1,422,046		1,370,721
Corporate		279,671		172,555
Total assets	$	11,352,311	$	11,241,165

12. Real Estate Acquisition and Disposition

During the three months ended March 31, 2023, the Company acquired a six-acre land parcel in the Orlando, Florida market for approximately $12 million. During the three months ended March 31, 2023, the Company closed on the disposition of 21 acres of land in the Gulf Shores, Alabama market for gross proceeds of approximately $3 million, resulting in the recognition of a negligible gain on the sale of non-depreciable real estate assets.

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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 97.4% interest as of March 31, 2023. 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 and notes thereto included 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 U.S. As of March 31, 2023, we owned and operated 290 apartment communities (which does not include development communities under construction) through the Operating Partnership and its subsidiaries, and had an ownership interest in one apartment community through an unconsolidated real estate joint venture. In addition, as of March 31, 2023, we had six development communities under construction, and 34 of our apartment communities included retail components. Our apartment communities, including development communities under construction, were located across 16 states and the District of Columbia as of March 31, 2023.

We report in two segments, Same Store and Non-Same Store and Other. Our Same Store segment represents those apartment 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 that have been disposed of or identified for disposition, communities that have incurred a significant casualty loss and stabilized communities that do not meet the requirements to be Same Store communities. Also included in our Non-Same Store and Other segment are non-multifamily activities and storm related expenses related to hurricanes. Additional information regarding the composition of our segments is included in Note 11 to the condensed consolidated financial statements included in this Quarterly Report on Form 10-Q.

Note Regarding Forward-Looking Statements

This and other sections of this Quarterly Report on Form 10-Q may 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 regarding expected operating performance and results, property stabilizations, property acquisition and disposition activity, joint venture activity, development and renovation activity and other capital expenditures, and capital raising and financing activity, as well as lease pricing, revenue and expense growth, occupancy, interest rate and other economic expectations. Words such as “expects,” “anticipates,” “intends,” “plans,” “believes,” “seeks,” “estimates,” “forecasts,” “projects,” “assumes,” “will,” “may,” “could,” “should,” “budget,” “target,” “outlook,” “opportunity,” “guidance” 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 report may not prove to be accurate. In light of the significant uncertainties inherent in the forward-looking statements included herein, the inclusion of such information should not be regarded as a representation by us or any other person that the results or conditions described in such statements or our objectives and plans will be achieved.

The following factors, among others, could cause our 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 unfavorable economic and market conditions, changes in supply and/or demand, competition, uninsured losses, changes in tax and housing laws or other factors;

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

•unexpected capital needs;

•material changes in operating costs, including real estate taxes, utilities and insurance costs, due to inflation and other factors;

•inability to obtain appropriate insurance coverage at reasonable rates, or at all, or losses from catastrophes in excess of our insurance coverage;

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

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

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

•the impact of adverse developments affecting the U.S. or global banking industry, including bank failures and liquidity concerns, which could cause continued or worsening economic and market volatility, and regulatory responses thereto;

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

•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 or our service providers’ information technology systems, or business operations disruptions;

•potential liability for environmental contamination;

•changes in the legal requirements we are subject to, or the imposition of new legal requirements, that adversely affect our operations;

•extreme weather and natural disasters;

•disease outbreaks and other public health events, and measures that are taken by federal, state, and local governmental authorities in response to such outbreaks and events;

•impact of climate change on our properties or operations;

•legal proceedings or class action lawsuits;

•impact of reputational harm caused by negative press or social media postings of our actions or policies, whether or not warranted;

•compliance costs associated with numerous federal, state and local laws and regulations; and

•other risks identified in this Quarterly Report on Form 10-Q and 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 March 31, 2023

For the three months ended March 31, 2023, net income available for MAA common shareholders was $135.0 million as compared to $109.9 million for the three months ended March 31, 2022. Results for the three months ended March 31, 2023 included $4.4 million of non-cash gain related to the fair value adjustment of the embedded derivative in the MAA Series I preferred shares. Results for the three months ended March 31, 2022 included $11.9 million of non-cash gain related to the embedded derivative in the MAA Series I preferred shares. Revenues for the three months ended March 31, 2023 increased 11.1% as compared to the three months ended March 31, 2022, driven by an 11.0% increase in our Same Store segment. Property operating expenses, excluding depreciation and amortization, for the three months ended March 31, 2023 increased by 7.9% as compared to the three months ended March 31, 2022, driven by an 8.3% increase in our Same Store segment. The drivers of these changes are discussed in the “Results of Operations” section.

Trends

During the three months ended March 31, 2023, revenue growth for our Same Store segment continued to be primarily driven by growth in average effective rent per unit. The average effective rent per unit in our Same Store segment continued to increase from the prior year, up 12.6% for the three months ended March 31, 2023 as compared to the three months ended March 31, 2022. Average effective rent per unit represents the average of gross rent amounts, after the effect of leasing concessions, for occupied apartment units plus prevalent market rates asked for unoccupied apartment units, divided by the total number of units. Leasing concessions represent discounts to the current market rate. We believe average effective rent per unit is a helpful measurement in evaluating average pricing; however, it does not represent actual rental revenue collected per unit.

For the three months ended March 31, 2023, average physical occupancy for our Same Store segment was 95.5%, as compared to 95.9% for the three months ended March 31, 2022. Average physical occupancy is a measurement of the total number of our apartment units that are occupied by residents, and it represents the average of the daily physical occupancy for the period.

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 U.S. This diversity tends to mitigate exposure to economic issues in any one geographic market or area. We believe that a well-balanced portfolio, including both urban and suburban locations, with a broad range of monthly rent price points, will perform well in economic up cycles as well as better weather economic down cycles. Through our investment in 39 defined markets, we are diversified across markets, urban and suburban submarkets, and a variety of product types and monthly rent price points.

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Although demand for apartments moderated during the first quarter of 2023, we were able to maintain strong rent growth. We believe demand for apartments is primarily driven by general economic conditions in our markets and is particularly correlated to job growth, population growth, household formation and in-migration over the long term. While our rent growth and rent collection trends in the first quarter of 2023 were strong, we continue to monitor pressures surrounding inflation trends, general economic conditions and housing supply. A worsening of the current environment could contribute to uncertain rent collections going forward, suppress demand for apartments and could drive lower rent growth on new leases and renewals than what we achieved in the three months ended March 31, 2023. Current elevated supply levels could further affect rent growth for our portfolio in the short term, though we expect the demand side to continue to be more impactful over the long term. Supply chain and inflationary pressures have driven higher operating expenses during the three months ended March 31, 2023, particularly in personnel, repairs and maintenance and real estate taxes, and this trend may continue going forward.

Access to the financial markets remains available for high-credit rated borrowers. However, a prolonged disruption of the markets or a decline in credit and financing conditions, including as a result of the recent increased volatility in the global financial system due to the failure of certain financial institutions in the U.S., could negatively affect our ability to access capital necessary to fund our operations or refinance maturing debt in the future. Additionally, rising interest rates could negatively impact our borrowing costs for any variable rate borrowings or refinancing activity.

Results of Operations

Comparison of the three months ended March 31, 2023 to the three months ended March 31, 2022

For the three months ended March 31, 2023, we achieved net income available for MAA common shareholders of $135.0 million, a 22.9% increase as compared to the three months ended March 31, 2022, and total revenue growth of $53.0 million, representing an 11.1% increase in property revenues as compared to the three months ended March 31, 2022. The following discussion describes the primary drivers of the increase in net income available for MAA common shareholders for the three months ended March 31, 2023 as compared to the three months ended March 31, 2022.

Property Revenues

The following table reflects our property revenues by segment for the three months ended March 31, 2023 and 2022 (dollars in thousands):

	Three months ended March 31,
	2023		2022		Increase		% Increase
Same Store	$	500,010	$	450,323	$	49,687		11.0	%
Non-Same Store and Other		29,023		25,755		3,268		12.7	%
Total	$	529,033	$	476,078	$	52,955		11.1	%

The increase in rental revenues for our Same Store segment for the three months ended March 31, 2023 as compared to the three months ended March 31, 2022 was the primary driver of total property revenue growth. The Same Store segment generated an 11.0% increase in revenues for the three months ended March 31, 2023, primarily the result of average effective rent per unit growth of 12.6% as compared to the three months ended March 31, 2022, partially offset by lower average physical occupancy. The increase in property revenues from the Non-Same Store and Other segment for the three months ended March 31, 2023 as compared to three months ended March 31, 2022 was primarily the result of increased revenues from recently completed development communities and acquired communities, partially offset by decreased revenues from recently disposed communities during the year ended December 31, 2022.

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 March 31, 2023 and 2022 (dollars in thousands):

	Three months ended March 31,
	2023		2022		Increase		% Increase
Same Store	$	171,070	$	157,887	$	13,183		8.3	%
Non-Same Store and Other		11,733		11,533		200		1.7	%
Total	$	182,803	$	169,420	$	13,383		7.9	%

The increase in property operating expenses for our Same Store segment for the three months ended March 31, 2023 as compared to the three months ended March 31, 2022 was primarily driven by increases in real estate tax expense of $4.9 million, building repair and maintenance of $2.4 million, personnel expense of $2.4 million and utilities expense of $2.0 million.

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Depreciation and Amortization

Depreciation and amortization expense for the three months ended March 31, 2023 was $138.5 million, an increase of $4.8 million as compared to the three months ended March 31, 2022. The increase was primarily driven by the recognition of depreciation expense associated with our recently completed development communities and capital spend activities completed after March 31, 2022 in the normal course of business through March 31, 2023, partially offset from decreased depreciation expense from recently disposed communities during the year ended December 31, 2022.

Other Income and Expenses

Property management expenses for the three months ended March 31, 2023 were $17.9 million, an increase of $1.4 million as compared to the three months ended March 31, 2022. General and administrative expenses for the three months ended March 31, 2023 were $15.9 million, a decrease of $0.4 million as compared to the three months ended March 31, 2022.

Interest expense for the three months ended March 31, 2023 was $37.3 million, a decrease of $1.8 million as compared to the three months ended March 31, 2022. The decrease was primarily due to a decrease in our average outstanding debt balance during three months ended March 31, 2023 as compared to the three months ended March 31, 2022.

Other non-operating income for the three months ended March 31, 2023 was $3.5 million of income as compared to $10.8 million of income for the three months ended March 31, 2022, a decrease of $7.3 million. The income for the three months ended March 31, 2023 was driven by $4.4 million of non-cash gain related to the fair value adjustment of the embedded derivative in the MAA Series I preferred shares, partially offset by $1.0 million of non-cash loss from investments. The income for the three months ended March 31, 2022 was driven by $11.9 million of non-cash gain related to the fair value adjustment of the embedded derivative and $7.6 million in casualty recoveries related to winter storm Uri, partially offset by $10.2 million of non-cash loss from investments.

Non-GAAP Financial Measures

Funds from Operations and Core Funds from Operations

Funds from operations, or FFO, a non-GAAP financial measure, represents net income available for MAA common shareholders (computed in accordance with the U.S. 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 net income attributable to noncontrolling interests is added back, FFO, when used in this Quarterly Report on Form 10-Q, represents FFO attributable to common shareholders and unitholders.

FFO should not be considered as an alternative to net income available for MAA common shareholders, 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 and gain on sale of depreciable 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 Investment Trusts’, or NAREIT’s, definition, it may differ from the methodology for calculating FFO utilized by other REITs and, accordingly, may not be comparable to such other REITs.

Core FFO represents FFO as adjusted for items that are not considered part of our core business operations such as adjustments related to the fair value of the embedded derivative in the MAA Series I preferred shares; gain or loss on sale of non-depreciable assets; gain or loss on investments, net of tax; casualty related charges (recoveries), net; gain or loss on debt extinguishment; legal costs and settlements, net; COVID-19 related costs and mark-to-market debt adjustments. Because net income attributable to noncontrolling interests is added back to FFO, Core FFO, when used in this Quarterly Report on Form 10-Q, represents Core FFO attributable to common shareholders and unitholders.

Core FFO should not be considered as an alternative to net income available for MAA common shareholders, 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. We believe that Core FFO is helpful in understanding our core operating performance between periods in that it removes certain items that by their nature are not comparable over periods and therefore tend to obscure actual operating performance from rental activities. While our definition of Core FFO may be similar to others in the industry, our methodology for calculating Core FFO may differ from that utilized by other REITs and, accordingly, may not be comparable to such other REITs.

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The following table presents a reconciliation of net income available for MAA common shareholders to FFO attributable to common shareholders and unitholders and Core FFO attributable to common shareholders and unitholders for the three months ended March 31, 2023 and 2022, as we believe net income available for MAA common shareholders is the most directly comparable GAAP measure (dollars in thousands):

	Three months ended March 31,
	2023			2022
Net income available for MAA common shareholders	$	134,988		$	109,880
Depreciation and amortization of real estate assets		136,798			132,010
(Gain) loss on sale of depreciable real estate assets		(15	)		1
MAA’s share of depreciation and amortization of real estate assets of real estate joint venture		151			154
Net income attributable to noncontrolling interests		3,664			2,775
FFO attributable to common shareholders and unitholders		275,586			244,820
Gain on embedded derivative in preferred shares (1)		(4,435	)		(11,896	)
Gain on sale of non-depreciable real estate assets		(54	)		(23	)
Loss on investments, net of tax (1) (2)		806			8,077
Casualty related charges (recoveries), net (1) (3)		296			(7,712	)
Legal costs and settlements, net (1)		—			537
COVID-19 related costs (1)		—			337
Mark-to-market debt adjustment (4)		(13	)		36
Core FFO attributable to common shareholders and unitholders	$	272,186		$	234,176

(1)Included in “Other non-operating income” in the Condensed Consolidated Statements of Operations.

(2)For the three months ended March 31, 2023 and 2022, loss on investments are presented net of tax benefit of $0.2 million and $2.2 million, respectively.

(3)For the three months ended March 31, 2022, MAA recognized a gain of $7.6 million from the receipt of insurance proceeds that exceeded its casualty losses related to winter storm Uri.

(4)Included in “Interest expense” in the Condensed Consolidated Statements of Operations.

Core FFO attributable to common shareholders and unitholders for the three months ended March 31, 2023 was $272.2 million, an increase of $38.0 million as compared to the three months ended March 31, 2022, primarily as a result of an increase in property revenues of $53.0 million, partially offset by increases in property operating expenses, excluding depreciation and amortization, of $13.4 million and property management expenses of $1.4 million.

Net Debt, EBITDA, EBITDAre, and Adjusted EBITDAre

Net debt, a non-GAAP financial measure, represents unsecured notes payable and secured notes payable less cash and cash equivalents and 1031(b) exchange proceeds included in restricted cash. Management considers net debt a helpful tool in evaluating its debt position. Net debt should not be considered as an alternative to any 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.

Earnings before interest, taxes, depreciation and amortization, or EBITDA, a non-GAAP financial measure, represents net income (computed in accordance with GAAP) plus depreciation and amortization, interest expense, and income taxes. As an owner and operator of real estate, management considers EBITDA to be an important measure of performance from core operations because EBITDA does not include various expense items that are not indicative of operating performance. EBITDA 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.

EBITDAre is composed of EBITDA further adjusted for the gain or loss on sale of depreciable asset sales and adjustments to reflect the Company’s share of EBITDAre of unconsolidated affiliates. As an owner and operator of real estate, management considers EBITDAre to be an important measure of performance from core operations because EBITDAre does not include various expense items that are not indicative of operating performance. While our definition of EBITDAre is in accordance with NAREIT’s definition, it may differ from the methodology utilized by other companies to calculate EBITDAre and, accordingly, may not be comparable to such other REITs. EBITDAre 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.

Adjusted EBITDAre is comprised of EBITDAre further adjusted for items that are not considered part of our core operations such as adjustments related to the fair value of the embedded derivative in the MAA Series I preferred shares, gain or loss on sale of non-depreciable assets; gain or loss on investments; casualty related charges (recoveries), net; gain or loss on debt extinguishment; legal costs and settlements, net and COVID-19 related costs. As an owner and operator of real estate, management considers Adjusted EBITDAre to be an important measure of performance from core operations because Adjusted EBITDAre does not include various income and expense items that are not indicative of

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operating performance. Our computation of Adjusted EBITDAre may differ from the methodology utilized by other companies to calculate Adjusted EBITDAre. Adjusted EBITDAre 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 monitors its debt levels to a ratio of net debt to Adjusted EBITDAre in order to maintain our investment grade credit ratings. We believe this is an important factor in the management of our debt levels to maintain an optimal capital structure and is also considered in the assignment of our credit ratings. Adjusted EBITDAre is measured on a trailing twelve-month basis.

The following table presents a reconciliation of unsecured notes payable and secured notes payable to net debt as of March 31, 2023 and December 31, 2022, as we believe unsecured notes payable and secured notes payable are the most directly comparable GAAP measures (dollars in thousands):

	March 31, 2023			December 31, 2022
Unsecured notes payable	$	4,032,000		$	4,050,910
Secured notes payable		363,650			363,993
Total debt		4,395,650			4,414,903
Cash and cash equivalents		(142,411	)		(38,659	)
1031(b) exchange proceeds included in Restricted cash (1)		—			(9,186	)
Net debt	$	4,253,239		$	4,367,058

(1)Included in Restricted cash in the Condensed Consolidated Balance Sheets.

The following table presents a reconciliation of net income to EBITDA, EBITDAre and Adjusted EBITDAre for the trailing twelve months ended March 31, 2023 and December 31, 2022, as we believe net income is the most directly comparable GAAP measure (dollars in thousands):

	Twelve Months Ended
	March 31, 2023			December 31, 2022
Net income	$	680,773		$	654,776
Depreciation and amortization		547,761			542,998
Interest expense		152,907			154,747
Income tax benefit		(3,822	)		(6,208	)
EBITDA		1,377,619			1,346,313
Gain on sale of depreciable real estate assets		(214,778	)		(214,762	)
Adjustments to reflect the Company’s share of EBITDAre of unconsolidated affiliates		1,354			1,357
EBITDAre		1,164,195			1,132,908
Loss on embedded derivative in preferred shares (1)		28,568			21,107
Gain on sale of non-depreciable real estate assets		(840	)		(809	)
Loss on investments (1)		38,304			45,357
Casualty related recoveries, net (1) (2)		(21,922	)		(29,930	)
Loss on debt extinguishment (1)		47			47
Legal costs and settlements, net (1)		7,998			8,535
COVID-19 related costs (1)		238			575
Adjusted EBITDAre	$	1,216,588		$	1,177,790

(1)Included in “Other non-operating income” in the Condensed Consolidated Statements of Operations.

(2)For the twelve months ended March 31, 2023 and December 31, 2022, MAA recognized a gain of $21.4 million and $29.0 million, respectively, from the receipt of insurance proceeds that exceeded its casualty losses related to winter storm Uri.

Our net debt to Adjusted EBITDAre ratio as of March 31, 2023 was 3.50x, as compared to a ratio of 3.71x as of December 31, 2022. The change in the ratio was primarily due to an increase of $38.8 million in Adjusted EBITDAre for the trailing twelve months as of March 31, 2023 as compared to the trailing twelve months ended December 31, 2022 and a decrease in net debt of $113.8 million as of March 31, 2023 as compared to net debt as of December 31, 2022. The increase in Adjusted EBITDAre was primarily due to an increase in net income while the decrease in net debt was primarily due to an increase in cash and cash equivalents.

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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.

We expect that our primary uses of cash will be to fund our ongoing operating needs, to fund our ongoing capital spending requirements, which relate primarily to our development, redevelopment and property repositioning activities, to repay maturing borrowings, to fund the future acquisition of assets and to pay shareholder dividends. We expect to meet our cash requirements through net cash flows from operating activities, existing unrestricted cash and cash equivalents, borrowings under our commercial paper program and our revolving credit facility, the future issuance of debt and equity and the future disposition of assets.

We historically have had positive net cash flows from operating activities. We believe that future net cash flows generated from operating activities, existing unrestricted cash and cash equivalents, borrowing capacity under our current commercial paper program and revolving credit facility, and our ability to issue debt and equity will provide sufficient liquidity to fund the cash requirements for our business over the next 12 months and the foreseeable future.

As of March 31, 2023, we had $1.4 billion of combined unrestricted cash and cash equivalents and available capacity under our revolving credit facility.

Cash Flows from Operating Activities

Net cash provided by operating activities was $218.3 million for the three months ended March 31, 2023 as compared to $179.6 million for the three months ended March 31, 2022. The increase in operating cash flows was primarily driven by our operating performance.

Cash Flows from Investing Activities

Net cash used in investing activities was $138.4 million for the three months ended March 31, 2023 as compared to $83.5 million for the three months ended March 31, 2022. The primary drivers of the change were as follows (dollars in thousands):

	Primary drivers of cash (outflow) inflow
	during the three months ended March 31,						(Decrease) Increase
	2023			2022			in Net Cash
Purchases of real estate and other assets	$	(12,450	)	$	(5,232	)	$	(7,218	)
Capital improvements and other		(75,622	)		(38,212	)		(37,410	)
Development costs		(52,851	)		(42,780	)		(10,071	)
Contributions to affiliates		(1,250	)		(7,500	)		6,250
Proceeds from real estate asset dispositions		3,024			24			3,000
Net proceeds from insurance recoveries		764			10,073			(9,309	)

The increase in cash outflows for purchases of real estate and other assets was driven by the nature of the real estate assets acquired during the three months ended March 31, 2023 as compared to the three months ended March 31, 2022. The increase in cash outflows for capital improvements and other was primarily driven by increased capital spend relating to our property redevelopment activities and increased reconstruction-related capital expenditures during the three months ended March 31, 2023 as compared to the three months ended March 31, 2022. The increase in cash outflows for development costs was primarily driven by increased development spend during the three months ended March 31, 2023 as compared to the three months ended March 31, 2022. The decrease in cash outflows for contributions to affiliates was driven by investments in the technology-focused limited partnerships during the three months ended March 31, 2022, while less limited partnership contributions were made during the three months ended March 31, 2023. The increase in cash inflows from proceeds from real estate asset dispositions resulted from the disposition of a land parcel during the three months ended March 31, 2023 as compared to no disposition activity during the three months ended March 31, 2022. The decrease in cash inflows from net proceeds from insurance recoveries was driven by less insurance reimbursement received for casualty claims related to winter storms during the three months ended March 31, 2023 compared to insurance reimbursements received for casualty claims related to winter storm Uri during the three months ended March 31, 2022.

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Cash Flows from Financing Activities

Net cash provided by financing activities was $15.0 million for the three months ended March 31, 2023 as compared to $154.1 million of net cash used in financing activities for the three months ended March 31, 2022. The primary drivers of the change were as follows (dollars in thousands):

	Primary drivers of cash (outflow) inflow
	during the three months ended March 31,						(Decrease) Increase
	2023			2022			in Net Cash
Net (payments of) proceeds from commercial paper	$	(20,000	)	$	20,000		$	(40,000	)
Dividends paid on common shares		(161,683	)		(125,432	)		(36,251	)
Proceeds from issuances of common shares		204,077			164			203,913
Acquisition of noncontrolling interests		—			(43,070	)		43,070

The decrease in cash inflows related to the net change in commercial paper resulted from the $20.0 million repayment of our commercial paper borrowings during the three months ended March 31, 2023 as compared to the increase in net borrowings of $20.0 million on our commercial paper program during the three months ended March 31, 2022. The increase in cash outflows from dividends paid on common shares primarily resulted from the increase in the dividend rate to $1.4000 per share during the three months ended March 31, 2023 as compared to the dividend rate of $1.0875 per share during the three months ended March 31, 2022. The increase in cash inflows related to the proceeds from issuances of common shares resulted from the proceeds from the settlement of two forward sale agreements with respect to a total of 1.1 million shares at a forward price per share of $185.23 during the three months ended March 31, 2023. The decrease in cash outflows from the acquisition of noncontrolling interests resulted from the acquisition of the noncontrolling interest of a consolidated real estate entity for $43.1 million during the three months ended March 31, 2022.

Debt

The following schedule reflects our outstanding debt as of March 31, 2023 (dollars in thousands):

	Principal Balance			Average Years to Rate Maturity		Effective Rate
Unsecured debt
Fixed rate senior notes	$	4,050,000			6.1		3.4	%
Debt issuance costs, discounts, premiums and fair market value adjustments		(18,000	)
Total unsecured debt	$	4,032,000			6.1		3.4	%
Secured debt
Fixed rate property mortgages	$	366,792			25.6		4.4	%
Debt issuance costs		(3,142	)
Total secured debt	$	363,650			25.6		4.4	%
Total debt	$	4,395,650			7.7		3.4	%

The following schedule presents the contractual maturity dates of our outstanding debt, net of debt issuance costs, discounts, premiums and fair market value adjustments, as of March 31, 2023 (dollars in thousands):

	Commercial Paper & Revolving Credit Facility⁽¹⁾⁽²⁾		Senior Notes		Property Mortgages		Total
2023	$	—	$	349,677	$	—	$	349,677
2024		—		399,046		—		399,046
2025		—		397,967		3,603		401,570
2026		—		297,395		—		297,395
2027		—		596,745		—		596,745
2028		—		396,847		—		396,847
2029		—		558,749		—		558,749
2030		—		297,629		—		297,629
2031		—		445,150		—		445,150
2032		—		—		—		—
Thereafter		—		292,795		360,047		652,842
Total	$	—	$	4,032,000	$	363,650	$	4,395,650

(1)As of March 31, 2023, no borrowings were outstanding under MAALP’s unsecured commercial paper program. Under the terms of the program, MAALP may issue up to a maximum aggregate amount outstanding at any time of $625.0 million. For the three months ended March 31, 2023, average daily borrowings outstanding under the commercial paper program were $8.2 million.

(2)There were no borrowings outstanding under MAALP’s $1.25 billion unsecured revolving credit facility as of March 31, 2023.

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The following schedule reflects the maturities and effective interest rates of our outstanding fixed rate debt, net of debt issuance costs, discounts, premiums and fair market value adjustments, as of March 31, 2023 (dollars in thousands):

	Fixed Rate Debt		Effective Rate
2023	$	349,677		4.2	%
2024		399,046		4.0	%
2025		401,570		4.2	%
2026		297,395		1.2	%
2027		596,745		3.7	%
2028		396,847		4.2	%
2029		558,749		3.7	%
2030		297,629		3.1	%
2031		445,150		1.8	%
2032		—		—
Thereafter		652,842		3.8	%
Total	$	4,395,650		3.4	%

Unsecured Revolving Credit Facility & Commercial Paper

MAALP has entered into an unsecured revolving credit facility with a borrowing capacity of $1.25 billion with an option to expand to $2.0 billion. The revolving credit facility bears interest at an adjusted Secured Overnight Financing Rate plus a spread of 0.70% to 1.40% based on an investment grade pricing grid. The revolving credit facility has a maturity date in October 2026 with an option to extend for two additional six-month periods. As of March 31, 2023, there was no outstanding balance under the revolving credit facility, while $4.3 million of capacity was used to support outstanding letters of credit.

MAALP has established an unsecured commercial paper program, whereby it can issue unsecured commercial paper notes with varying maturities not to exceed 397 days up to a maximum aggregate principal amount outstanding of $625.0 million. As of March 31, 2023, there was no outstanding balance under the commercial paper program.

Unsecured Senior Notes

As of March 31, 2023, MAALP had $4.1 billion of publicly issued unsecured senior notes outstanding.

Secured Property Mortgages

MAALP maintains secured property mortgages with various life insurance companies. As of March 31, 2023, MAALP had $366.8 million of secured property mortgages outstanding.

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

Equity

As of March 31, 2023, MAA owned 116,600,756 OP Units, comprising a 97.4% limited partnership interest in MAALP, while the remaining 3,155,699 outstanding OP Units were held by limited partners of MAALP other than MAA. Holders of OP Units (other than MAA) may require us to redeem their OP Units from time to time, in which case we may, at our option, pay the redemption price either in cash (in an amount per OP Unit equal, in general, to the average closing price of 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. MAA has registered under the Securities Act the 3,155,699 shares of its common stock that, as of March 31, 2023, were issuable upon redemption of OP Units, in order for those shares to be sold freely in the public markets.

In August 2021, MAA entered into two 18-month forward sale agreements with respect to a total of 1.1 million shares of its common stock at an initial forward sale price of $190.56 per share, which is net of issuance costs. In January 2023, MAA settled its two forward sale agreements with respect to the total of 1.1 million shares at a forward price per share of $185.23, which is inclusive of adjustments made to reflect the then-current federal funds rate, the amount of dividends paid to holders of MAA common stock and commissions paid to sales agents, for net proceeds of $203.7 million. We intend to use these proceeds to fund our development and redevelopment activities, among other potential uses.

The Company has entered into an equity distribution agreement to establish an at-the-market, or ATM, share offering program, which allows MAA to sell shares of its common stock from time to time to or through its sales agents into the existing market at current market prices, and to enter into separate forward sales agreements to or through its forward purchasers. Under its ATM program, MAA has the authority to

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issue up to an aggregate of 4.0 million shares of its common stock, at such times to be determined by MAA. MAA has no obligation to issue shares through the ATM program. During the three months ended March 31, 2023 and 2022, MAA did not sell any shares of common stock under its ATM program. As of March 31, 2023, there were 4.0 million shares remaining under the ATM program.

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

Material Cash Requirements

As of March 31, 2023, we had $351.1 million of outstanding debt obligations that will mature in the year ending December 31, 2023, and we were obligated to make $121.8 million of additional interest payments on fixed rate debt obligations in the year ending December 31, 2023. For a schedule of the maturity dates of our outstanding debt beyond 2023, see the “Liquidity and Capital Resources - Debt” section above. As of March 31, 2023, we also had obligations to make additional capital contributions to five technology-focused limited partnerships in which we hold equity interests. The capital contributions may be called by the general partners at any time after giving appropriate notice. As of March 31, 2023, we had committed to make additional capital contributions totaling up to $44.0 million if and when called by the general partners of the limited partnerships.

We have other material cash requirements that do not represent contractual obligations, but we expect to incur in the ordinary course of our business.

As of March 31, 2023, we had six development communities under construction totaling 2,310 apartment units once complete. Total expected costs for the six development projects are $731.5 million, of which $342.6 million had been incurred through March 31, 2023. In addition, our property redevelopment and repositioning activities are ongoing, and we incur expenditures relating to recurring capital replacements, which typically include scheduled carpet replacement, new roofs, HVAC units, plumbing, concrete, masonry and other paving, pools and various exterior building improvements. For the year ending December 31, 2023, we expect that our total capital expenditures relating to our development activities, our property redevelopment and repositioning activities and recurring capital replacements will be in line with our total capital expenditures for the year ended December 31, 2022. We expect to have additional development projects in the future.

We typically declare cash dividends on MAA’s common stock on a quarterly basis, subject to approval by MAA’s Board of Directors. The current annual dividend rate is $5.60 per common share. The timing and amount of future dividends will depend on actual cash flows from operations, our financial condition, capital requirements, the annual distribution requirements under the REIT provisions of the Internal Revenue Code of 1986 and other factors as MAA’s Board of Directors deems relevant. MAA’s Board of Directors may modify our dividend policy from time to time.

For information regarding our material cash requirements as of December 31, 2022, see Item 7 of Part II of our Annual Report on Form 10-K for the year ended December 31, 2022, filed with the SEC on February 14, 2023.

Inflation

Our resident leases at our apartment communities allow for adjustments in the rental rate at the time of renewal, which 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 on our revenue. During the three months ended March 31, 2023, we experienced inflationary pressures that drove higher operating expenses, primarily in real estate taxes, repairs and maintenance and personnel.

Critical Accounting Estimates

Please refer to our Annual Report on Form 10-K for the year ended December 31, 2022, filed with the SEC on February 14, 2023, for discussions of our critical accounting estimates. During the three months ended March 31, 2023, there were no material changes to these estimates.

34

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 March 31, 2023, 19.6% of our total market capitalization consisted of debt 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 from time to time, interest rate swaps to effectively fix the interest rate on anticipated future debt transactions. 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 March 31, 2023, 100.0% of our outstanding debt was subject to fixed rates. 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, 2022, filed with the SEC on February 14, 2023.

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 March 31, 2023. Based on that evaluation, MAA’s Chief Executive Officer and Chief Financial Officer concluded that the disclosure controls and procedures were effective as of March 31, 2023 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 March 31, 2023 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 March 31, 2023. 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 March 31, 2023 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 March 31, 2023 that has materially affected, or is reasonably likely to materially affect, the Operating Partnership’s internal control over financial reporting.

PART II – OTHER INFORMATION

Item 1. Legal Proceedings.

As disclosed in Note 10 to the condensed consolidated financial statements included in the Quarterly Report on Form 10-Q, we are engaged in certain legal proceedings, and the disclosure set forth in Note 10 relating to loss contingencies is incorporated herein by reference.

35

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, 2022, filed with the SEC on February 14, 2023.

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 March 31, 2023:

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)
January 1, 2023 - January 31, 2023		12,257	$	156.66		—		4,000,000
February 1, 2023 -February 28, 2023		—	$	—		—		4,000,000
March 1, 2023 - March 31, 2023		—	$	—		—		4,000,000
Total		12,257				—		4,000,000

(1)The shares reflected in this column are shares of MAA’s 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.

Item 3. Defaults Upon Senior Securities.

Not applicable.

Item 4. Mine Safety Disclosures.

Not applicable.

Item 5. Other Information.

Not applicable.

36

Item 6. Exhibits.

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

Exhibit Number	Exhibit Description
3.1	Composite Charter of Mid-America Apartment Communities, Inc. (Filed as Exhibit 3.1 to the Registrant’s Annual Report on Form 10-K filed on February 24, 2017 and incorporated herein by reference)
3.2	Fourth Amended and Restated Bylaws of Mid-America Apartment Communities, Inc., dated as of March 13, 2018 (Filed as Exhibit 3.2(i) to the Registrant’s Current Report on Form 8-K filed on March 14, 2018 and incorporated herein by reference)
3.3	Composite Certificate of Limited Partnership of Mid-America Apartments, L.P. (Filed as Exhibit 3.1 to the Registrant’s Quarterly Report on Form 10-Q filed on August 1, 2019 and incorporated herein by reference)
3.4	Third Amended and Restated Agreement of Limited Partnership of Mid-America Apartments, L.P. dated as of October 1, 2013 (Filed as Exhibit 10.1 to the Registrant’s Current Report on Form 8-K filed on October 2, 2013 and incorporated herein by reference)
3.5	First Amendment to the Third Amended and Restated Agreement of Limited Partnership of Mid-America Apartments, L.P. (Filed as Exhibit 10.1 to the Registrant’s Current Report on Form 8-K filed on November 10, 2016 and incorporated herein by reference)
10.1	Fourth Amended and Restated Credit Agreement, dated as of July 25, 2022, by and among Wells Fargo Bank, National Association, as Administrative Agent, Wells Fargo Securities, LLC, KeyBanc Capital Markets Inc., and JPMorgan Chase Bank, N.A., as Joint Lead Arrangers and Joint Bookrunners, KeyBank National Association and JPMorgan Chase Bank, N.A., as Co-Syndication Agents, Truist Bank, U.S. Bank National Association, PNC Bank, National Association, Citibank, N.A., TD Bank, N.A., and Mizuho Bank, LTD., as Co-Documentation Agents, and the lenders party thereto (Filed as Exhibit 10.1 to the Registrant’s Quarterly Report on Form 10-Q filed on July 28, 2022 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	Interactive Data Files submitted pursuant to Rule 405 of Regulation S-T formatted in Inline eXtensible Business Reporting Language (Inline XBRL)
104	Cover Page Interactive Data File (formatted in Inline XBRL and contained in Exhibit 101)

37

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this Quarterly Report on Form 10-Q to be signed on its behalf by the undersigned thereunto duly authorized.

			MID-AMERICA APARTMENT COMMUNITIES, INC.
Date:	April 27, 2023	By:	/s/ A. Clay Holder
			A. Clay Holder
			Senior Vice President and Chief Accounting Officer
			(Duly Authorized Officer)

38

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this Quarterly Report on Form 10-Q 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:	April 27, 2023		/s/ A. Clay Holder
			A. Clay Holder
			Senior Vice President and Chief Accounting Officer
			(Duly Authorized Officer)

39

EX-31

EXHIBIT 31.1

CERTIFICATION

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

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

2.Based on my knowledge, this Quarterly Report on Form 10-Q 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 Quarterly Report on Form 10-Q;

3.Based on my knowledge, the financial statements, and other financial information included in this Quarterly Report on Form 10-Q, 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 Quarterly Report on Form 10-Q;

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 Quarterly Report on Form 10-Q 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 Quarterly Report on Form 10-Q our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this Quarterly Report on Form 10-Q based on such evaluation; and

(d)Disclosed in this Quarterly Report on Form 10-Q 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:	April 27, 2023	/s/ H. Eric Bolton, Jr.
		H. Eric Bolton, Jr.
		Chairman of the Board of Directors
		Chief Executive Officer

EX-31

EXHIBIT 31.2

CERTIFICATION

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

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

2.Based on my knowledge, this Quarterly Report on Form 10-Q 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 Quarterly Report on Form 10-Q;

3.Based on my knowledge, the financial statements, and other financial information included in this Quarterly Report on Form 10-Q, 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 Quarterly Report on Form 10-Q;

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 Quarterly Report on Form 10-Q 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 Quarterly Report on Form 10-Q our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this Quarterly Report on Form 10-Q based on such evaluation; and

(d)Disclosed in this Quarterly Report on Form 10-Q 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:	April 27, 2023	/s/ Albert M. Campbell, III
		Albert M. Campbell, III
		Executive Vice President and Chief Financial Officer

EX-31

EXHIBIT 31.3

CERTIFICATION

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

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

2.Based on my knowledge, this Quarterly Report on Form 10-Q 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 Quarterly Report on Form 10-Q;

3.Based on my knowledge, the financial statements, and other financial information included in this Quarterly Report on Form 10-Q, 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 Quarterly Report on Form 10-Q;

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 Quarterly Report on Form 10-Q 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 Quarterly Report on Form 10-Q our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this Quarterly Report on Form 10-Q based on such evaluation; and

(d)Disclosed in this Quarterly Report on Form 10-Q 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:	April 27, 2023	/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

EXHIBIT 31.4

CERTIFICATION

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

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

2.Based on my knowledge, this Quarterly Report on Form 10-Q 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 Quarterly Report on Form 10-Q;

3.Based on my knowledge, the financial statements, and other financial information included in this Quarterly Report on Form 10-Q, 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 Quarterly Report on Form 10-Q;

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 Quarterly Report on Form 10-Q 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 Quarterly Report on Form 10-Q our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this Quarterly Report on Form 10-Q based on such evaluation; and

(d)Disclosed in this Quarterly Report on Form 10-Q 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:	April 27, 2023	/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

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 March 31, 2023, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, H. Eric Bolton, Jr., Chairman of the Board of Directors 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:	April 27, 2023	/s/ H. Eric Bolton, Jr.
		H. Eric Bolton, Jr.
		Chairman of the Board of Directors
		Chief Executive Officer

EX-32

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 March 31, 2023, 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:	April 27, 2023	/s/ Albert M. Campbell, III
		Albert M. Campbell, III
		Executive Vice President and Chief Financial Officer

EX-32

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 March 31, 2023, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, H. Eric Bolton, Jr., Chairman of the Board of Directors 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:	April 27, 2023	/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

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 March 31, 2023, 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:	April 27, 2023	/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	3 Months Ended
	Mar. 31, 2023	Apr. 24, 2023
Document Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2023
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	Q1
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		116,659,693
Entity Shell Company	false
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Emerging Growth Company	false
Entity Small Business	false
Entity File Number	001-12762
Entity Incorporation, State or Country Code	TN
Entity Tax Identification Number	62-1543819
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
Document Quarterly Report	true
Document Transition Report	false
Common Stock [Member]
Document Information [Line Items]
Security Exchange Name	NYSE
Trading Symbol	MAA
Title of 12(b) Security	Common Stock
Cumulative Preferred Stock [Member]
Document Information [Line Items]
Security Exchange Name	NYSE
Trading Symbol	MAA*I
Title of 12(b) Security	8.50% Series I Cumulative Redeemable Preferred Stock
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 Interactive Data Current	Yes
Entity Emerging Growth Company	false
Entity Small Business	false
Entity File Number	333-190028-01
Entity Incorporation, State or Country Code	TN
Entity Tax Identification Number	62-1543816
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

Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands		Mar. 31, 2023	Dec. 31, 2022
Assets
Land		$ 2,008,523	$ 2,008,364
Buildings and improvements and other		12,924,101	12,841,947
Development and capital improvements in progress		391,439	332,035
Real Estate Investment Property, at Cost		15,324,063	15,182,346
Less: Accumulated depreciation		(4,440,520)	(4,302,747)
Real Estate Investment Property, Net		10,883,543	10,879,599
Undeveloped land		73,861	64,312
Investment in real estate joint venture		42,333	42,290
Real estate assets, net		10,999,737	10,986,201
Cash and cash equivalents		142,411	38,659
Restricted cash		13,606	22,412
Other assets		196,557	193,893
Total assets		11,352,311	11,241,165
Liabilities:
Unsecured notes payable		4,032,000	4,050,910
Secured notes payable		363,650	363,993
Accrued expenses and other liabilities		566,075	615,843
Total liabilities		4,961,725	5,030,746
Redeemable common stock		19,590	20,671
Shareholders' equity:
Preferred Stock, Value, Outstanding		9	9
Common Stock, Value, Outstanding	[1]	1,167	1,152
Additional Paid in Capital		7,408,307	7,202,834
Accumulated distributions in excess of net income		(1,216,325)	(1,188,854)
Accumulated other comprehensive loss		(9,791)	(10,052)
Total MAA shareholders' equity		6,183,367	6,005,089
Noncontrolling interests - Operating Partnership units		166,309	163,595
Total Company’s shareholders’ equity		6,349,676	6,168,684
Noncontrolling interests - consolidated real estate entities		21,320	21,064
Operating Partnership capital:
Accumulated other comprehensive loss		(9,791)	(10,052)
Noncontrolling interests - consolidated real estate entities		21,320	21,064
Total equity		6,370,996	6,189,748
Total liabilities and equity		11,352,311	11,241,165
Limited Partnership [Member]
Assets
Land		2,008,523	2,008,364
Buildings and improvements and other		12,924,101	12,841,947
Development and capital improvements in progress		391,439	332,035
Real Estate Investment Property, at Cost		15,324,063	15,182,346
Less: Accumulated depreciation		(4,440,520)	(4,302,747)
Real Estate Investment Property, Net		10,883,543	10,879,599
Undeveloped land		73,861	64,312
Investment in real estate joint venture		42,333	42,290
Real estate assets, net		10,999,737	10,986,201
Cash and cash equivalents		142,411	38,659
Restricted cash		13,606	22,412
Other assets		196,557	193,893
Total assets		11,352,311	11,241,165
Liabilities:
Unsecured notes payable		4,032,000	4,050,910
Secured notes payable		363,650	363,993
Accrued expenses and other liabilities		566,075	615,843
Due to general partner		19	19
Total liabilities		4,961,744	5,030,765
Redeemable common stock		19,590	20,671
Shareholders' equity:
Accumulated other comprehensive loss		(9,990)	(10,268)
Total Company’s shareholders’ equity		6,349,657	6,168,665
Noncontrolling interests - consolidated real estate entities		21,320	21,064
Operating Partnership capital:
Preferred Units, Preferred Partners' Capital Accounts		66,840	66,840
General Partners' Capital Account	[2]	6,126,498	5,948,498
Limited Partners' Capital Account	[2]	166,309	163,595
Accumulated other comprehensive loss		(9,990)	(10,268)
Noncontrolling interests - consolidated real estate entities		21,320	21,064
Total equity		6,370,977	6,189,729
Total liabilities and equity		$ 11,352,311	$ 11,241,165

[1] Number of shares issued and outstanding represents 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 March 31, 2023 and December 31, 2022 are 129,704 and 136,429, respectively.

[2] Number of units outstanding represents 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 March 31, 2023 and December 31, 2022 are 129,704 and 136,429, respectively.

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Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - $ / shares	3 Months Ended		12 Months Ended
	Mar. 31, 2023		Dec. 31, 2022
Common stock, par value per share	$ 0.01		$ 0.01
Common stock, shares authorized	145,000,000		145,000,000
Common stock, shares issued	116,600,756		115,480,336
Common stock, shares outstanding	116,600,756		115,480,336
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	$ 50.00	[1]	$ 50.00
Redeemable stock, shares issued and outstanding	129,704		136,429
General Partners' Capital Account, Units Outstanding	116,600,756
Limited Partners' Capital Account, Units Outstanding	3,155,699
Limited Partnership [Member]
Preferred Stock, Dividend Rate, Percentage	8.50%		8.50%
Redeemable stock, shares issued and outstanding	129,704		136,429
General Partners' Capital Account, Units Outstanding	116,600,756		115,480,336
Limited Partners' Capital Account, Units Outstanding	3,155,699		3,164,933
Preferred Units, Outstanding	867,846		867,846

[1] The total liquidation preference for the outstanding preferred stock is $43.4 million.

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Condensed Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Revenues:
Rental and other property revenues	$ 529,033	$ 476,078
Expenses:
Operating expenses, excluding real estate taxes and insurance	108,604	101,117
Real estate taxes and insurance	74,199	68,303
Depreciation and amortization	138,501	133,738
Total property operating expenses	321,304	303,158
Property management expenses	17,928	16,537
General and administrative expenses	15,923	16,323
Interest expense	37,281	39,121
(Gain) loss on sale of depreciable real estate assets	(15)	1
Gain on sale of non-depreciable real estate assets	(54)	(23)
Other non-operating income	(3,467)	(10,795)
Income before income tax (expense) benefit	140,133	111,756
Income tax (expense) benefit	(944)	1,442
Income from continuing operations before real estate joint venture activity	139,189	113,198
Income from real estate joint venture	385	379
Net income	139,574	113,577
Net income (loss) attributable to noncontrolling interests	3,664	2,775
Net income available for shareholders	135,910	110,802
Dividends to MAA Series I preferred shareholders	922	922
Net income available for MAA common shareholders	$ 134,988	$ 109,880
Earnings per common share - basic:
Net income available for MAA common shareholders	$ 1.16	$ 0.95
Earnings per common share - diluted:
Net income available for MAA common shareholders	$ 1.16	$ 0.95
Limited Partnership [Member]
Revenues:
Rental and other property revenues	$ 529,033	$ 476,078
Expenses:
Operating expenses, excluding real estate taxes and insurance	108,604	101,117
Real estate taxes and insurance	74,199	68,303
Depreciation and amortization	138,501	133,738
Total property operating expenses	321,304	303,158
Property management expenses	17,928	16,537
General and administrative expenses	15,923	16,323
Interest expense	37,281	39,121
(Gain) loss on sale of depreciable real estate assets	(15)	1
Gain on sale of non-depreciable real estate assets	(54)	(23)
Other non-operating income	(3,467)	(10,795)
Income before income tax (expense) benefit	140,133	111,756
Income tax (expense) benefit	(944)	1,442
Income from continuing operations before real estate joint venture activity	139,189	113,198
Income from real estate joint venture	385	379
Net income	139,574	113,577
Net income (loss) attributable to noncontrolling interests	0	(293)
Net income available for shareholders	139,574	113,870
Dividends to MAA Series I preferred shareholders	922	922
Net income available for MAA common shareholders	$ 138,652	$ 112,948
Earnings per common share - basic:
Net income available for MAALP common unitholders	$ 1.16	$ 0.95
Earnings per common share - diluted:
Net income available for MAALP common unitholders	$ 1.16	$ 0.95

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Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Net income	$ 139,574	$ 113,577
Other comprehensive income:
Adjustment for net losses reclassified to net income from derivative instruments	278	279
Total comprehensive income	139,852	113,856
Less/Add: Comprehensive loss attributable to noncontrolling interests	(3,681)	(2,782)
Comprehensive income attributable to MAA	136,171	111,074
Limited Partnership [Member]
Net income	139,574	113,577
Other comprehensive income:
Adjustment for net losses reclassified to net income from derivative instruments	278	279
Total comprehensive income	139,852	113,856
Less/Add: Comprehensive loss attributable to noncontrolling interests	0	293
Comprehensive income attributable to MAA	$ 139,852	$ 114,149

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Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Cash flows from operating activities:
Net income	$ 139,574	$ 113,577
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	138,758	133,986
(Gain) loss on sale of depreciable real estate assets	(15)	1
Gain on sale of non-depreciable real estate assets	(54)	(23)
Gain on embedded derivative in preferred shares	(4,435)	(11,896)
Stock compensation expense	5,578	6,640
Amortization of debt issuance costs, discounts and premiums	1,517	1,510
Loss on investments	1,024	10,233
Net change in operating accounts and other operating activities	(63,637)	(74,405)
Net cash provided by operating activities	218,310	179,623
Cash flows from investing activities:
Purchases of real estate and other assets	(12,450)	(5,232)
Capital improvements and other	(75,622)	(38,212)
Development costs	(52,851)	(42,780)
Distributions from real estate joint venture	0	95
Contributions to affiliates	(1,250)	(7,500)
Proceeds from real estate asset dispositions	3,024	24
Net proceeds from insurance recoveries	764	10,073
Net cash used in investing activities	(138,385)	(83,532)
Cash flows from financing activities:
Net (payments of) proceeds from commercial paper	(20,000)	20,000
Principal payments on notes payable	(362)	(343)
Distributions to noncontrolling interests	(4,429)	(3,484)
Distributions paid on common shares	(161,683)	(125,432)
Distributions paid on preferred shares	(922)	(922)
Proceeds from issuances of common units	204,077	164
Acquisition of noncontrolling interests	0	(43,070)
Net change in other financing activities	(1,660)	(978)
Net cash provided by (used in) financing activities	15,021	(154,065)
Net increase (decrease) in cash, cash equivalents and restricted cash	94,946	(57,974)
Cash, cash equivalents and restricted cash, beginning of period	61,071	130,598
Cash, cash equivalents and restricted cash, end of period	156,017	72,624
Reconciliation of cash, cash equivalents and restricted cash at period end:
Cash and cash equivalents	142,411	60,371
Restricted cash	13,606	12,253
Total cash, cash equivalents and restricted cash	156,017	72,624
Supplemental disclosure of cash flow information:
Interest paid	29,516	30,427
Income taxes paid	25	0
Supplemental disclosure of noncash investing and financing activities:
Conversion of OP Units to shares of common stock	479	193
Accrued construction in progress	31,492	38,191
Interest capitalized	2,746	1,836
Limited Partnership [Member]
Cash flows from operating activities:
Net income	139,574	113,577
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	138,758	133,986
(Gain) loss on sale of depreciable real estate assets	(15)	1
Gain on sale of non-depreciable real estate assets	(54)	(23)
Gain on embedded derivative in preferred shares	(4,435)	(11,896)
Stock compensation expense	5,578	6,640
Amortization of debt issuance costs, discounts and premiums	1,517	1,510
Loss on investments	1,024	(10,233)
Net change in operating accounts and other operating activities	(63,637)	(74,405)
Net cash provided by operating activities	218,310	179,623
Cash flows from investing activities:
Purchases of real estate and other assets	(12,450)	(5,232)
Capital improvements and other	(75,622)	(38,212)
Development costs	(52,851)	(42,780)
Distributions from real estate joint venture	0	95
Contributions to affiliates	(1,250)	(7,500)
Proceeds from real estate asset dispositions	3,024	24
Net proceeds from insurance recoveries	764	10,073
Net cash used in investing activities	(138,385)	(83,532)
Cash flows from financing activities:
Net (payments of) proceeds from commercial paper	(20,000)	20,000
Principal payments on notes payable	(362)	(343)
Distributions paid on common shares	(166,112)	(128,916)
Distributions paid on preferred shares	(922)	(922)
Proceeds from issuances of common units	204,077	164
Acquisition of noncontrolling interests	0	(43,070)
Net change in other financing activities	(1,660)	(978)
Net cash provided by (used in) financing activities	15,021	(154,065)
Net increase (decrease) in cash, cash equivalents and restricted cash	94,946	(57,974)
Cash, cash equivalents and restricted cash, beginning of period	61,071	130,598
Cash, cash equivalents and restricted cash, end of period	156,017	72,624
Reconciliation of cash, cash equivalents and restricted cash at period end:
Cash and cash equivalents	142,411	60,371
Restricted cash	13,606	12,253
Total cash, cash equivalents and restricted cash	156,017	72,624
Supplemental disclosure of cash flow information:
Interest paid	29,516	30,427
Supplemental disclosure of noncash investing and financing activities:
Accrued construction in progress	31,492	38,191
Interest capitalized	$ 2,746	$ 1,836

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Organization and Summary of Significant Accounting Policies

9 Months Ended

Sep. 30, 2022

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

Organization and Summary of Significant Accounting Policies

1. Organization and Summary of 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, “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 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 March 31, 2023, MAA owned 116,600,756 OP Units (or 97.4% 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 a readers’ understanding of MAA and the Operating Partnership by enabling the reader to view the business as a whole in the same manner that management views and operates the business;

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

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

MAA, an S&P 500 company, 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 from time to time. 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 interests, treasury shares, accumulated other comprehensive income or loss 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 interests, accumulated other comprehensive income or loss and redeemable common units. Holders of OP Units (other than MAA) 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 U.S. As of March 31, 2023, the Company owned and operated 290 apartment communities (which does not include development communities under construction) 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 March 31, 2023, the Company also had six development communities under construction totaling 2,310 apartment units once complete. Total expected costs for the six development projects are $731.5 million, of which $342.6 million had been incurred through March 31, 2023. The Company expects to complete two developments in 2023, two developments in 2024 and two developments in 2025. As of March 31, 2023, 34 of the Company’s apartment communities included retail components. The Company’s apartment communities, including development communities under construction, were located across 16 states and the District of Columbia as of March 31, 2023.

Basis of Presentation and Principles of Consolidation

The accompanying condensed consolidated financial statements have been prepared by the Company’s management in accordance with U.S. 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. 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 that 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 because 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 significant influence or control include ownership of voting interests and participatory rights of investors (see “Investments in Unconsolidated Affiliates” below).

Noncontrolling Interests

As of March 31, 2023, 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; and (2) noncontrolling interests related to its consolidated real estate entities. The noncontrolling interests 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.

The noncontrolling interests relating to the Company’s five consolidated real estate entities are owned by private real estate companies that are generally responsible for the development, construction and lease-up of the apartment communities that are owned through the consolidated real estate entities with a noncontrolling interest. The entities were determined to be VIE’s with the Company designated as the primary beneficiary. As a result, the accounts of the entities are consolidated by the Company. As of March 31, 2023, the consolidated assets of the Company’s consolidated real estate entities with a noncontrolling interest were $300.1 million, and consolidated liabilities were $22.3 million. As of December 31, 2022, the consolidated assets of the Company’s consolidated real estate entities with a noncontrolling interest were $279.6 million, and consolidated liabilities were $14.5 million. During the three months ended March 31, 2022, the Company paid $43.1 million to acquire the noncontrolling interest of one consolidated real estate entity.

Investments in Unconsolidated Affiliates

The Company uses the equity method to account for its investments in a real estate joint venture and five technology-focused limited partnerships that each qualify as a VIE. Management determined the Company is not the primary beneficiary in any of these investments but does have the ability to exert significant influence over the operations and financial policies of the real estate joint venture and considers its investments in the limited partnerships to be more than minor. The Company’s investment in the real estate joint venture was $42.3 million as of March 31, 2023 and December 31, 2022, respectively, and is included in “Investment in real estate joint venture” in the accompanying Condensed Consolidated Balance Sheets.

The Company accounts for its investments in the technology-focused limited partnerships on a three month lag due to the timing the limited partnerships’ financial information is made available to the Company. As of March 31, 2023 and December 31, 2022, the Company’s investments in the limited partnerships were $30.1 million and $36.7 million, respectively, and are included in “Other assets” in the accompanying Condensed Consolidated Balance Sheets with any related gains and losses, including unrealized gains and losses, recognized in “Other non-operating income” in the accompanying Condensed Consolidated Statements of Operations. The decrease in the Company’s investments in the limited partnerships was primarily driven by the distribution of publicly traded marketable securities. During the three months ended March 31, 2023 and 2022, the Company recognized $0.1 million and $8.7 million of expense, respectively, from its investments in the limited partnerships. As of March 31, 2023, the Company was committed to make additional capital contributions totaling $44.0 million if and when called by the general partners of the limited partnerships.

Marketable Equity Securities

During the three months ended March 31, 2023, two of the technology-focused limited partnerships that are accounted for as investments in unconsolidated affiliates distributed publicly traded marketable equity securities to the Company and the other limited partners. The Company’s investment in marketable equity securities is measured at fair value based on the quoted share price of the securities and is included in “Other assets” in the accompanying Condensed Consolidated Balance Sheets, with any related gains and losses, including unrealized gains and losses, recognized in “Other non-operating income” in the accompanying Condensed Consolidated Statements of Operations. As of March 31, 2023 and December 31, 2022, the Company’s investment in the marketable equity securities was $14.9 million and $8.0 million, respectively. During the three months ended March 31, 2023 and 2022, the Company recognized $0.9 million and $1.5 million of expense, respectively, from its investment in marketable equity securities.

Revenue Recognition

The Company primarily leases multifamily residential apartments to residents under operating leases generally due on a monthly basis with terms of approximately one year or less. Rental revenues are recognized in accordance with Accounting Standards Codification (“ASC”) Topic 842, Leases, 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 residents, 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 94% of the Company’s total revenues and include gross rents charged less adjustments for concessions and bad debt. Approximately 5% of the Company’s total revenues represent non-lease reimbursable property revenues from its residents for utility reimbursements, which are generally recognized and due on a monthly basis as residents obtain control of the service over the term of the lease. The remaining 1% of the Company’s total revenues represents other non-lease property revenues primarily driven by nonrefundable fees and commissions which are recognized when earned.

In accordance with ASC Topic 842, rental revenues and non-lease reimbursable property revenues meet the criteria to be aggregated into a single lease component and are reported on a combined basis in the line item “Rental revenues,” as presented in the disaggregation of the Company’s revenues in Note 11. Other non-lease property revenues are accounted for in accordance with ASC Topic 606, Revenue from Contracts with Customers, which requires revenue recognized outside of the scope of ASC Topic 842 to be 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. Other non-lease property revenues are reported in the line item “Other property revenues”, as presented in the disaggregation of the Company’s revenues in Note 11.

Leases

The Company is the lessee under certain ground, office, equipment and other operational leases, all of which are accounted for as operating leases in accordance with ASC Topic 842. The Company recognizes a right-of-use asset for the right to use the underlying asset for all leases where the Company is the lessee with terms of more than twelve months, and a related lease liability for the obligation to make lease payments. Expenses related to leases determined to be operating leases are recognized on a straight-line basis. As of March 31, 2023 and December 31, 2022, right-of-use assets recorded within “Other assets” totaled $44.0 million and $44.6 million, respectively, and related lease liabilities recorded within “Accrued expenses and other liabilities” totaled $28.3 million and $28.7 million, respectively, in the Condensed Consolidated Balance Sheets. Lease expense recognized for the three months ended March 31, 2023 and 2022 was immaterial to the Company. Cash paid for amounts included in the measurement of operating lease liabilities during the three months ended March 31, 2023 and 2022 was also immaterial. See Note 10 for additional disclosures regarding leases.

Fair Value Measurements

The Company applies the guidance in ASC Topic 820, Fair Value Measurements and Disclosures, to the valuation of real estate assets recorded at fair value, to its impairment valuation analysis of real estate assets and to its valuation and disclosure of the fair value of financial instruments, which primarily consists of marketable equity securities, indebtedness and derivative instruments. Fair value disclosures required under ASC Topic 820 as well as the Company’s derivative accounting policies 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.

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Earnings Per Common Share of MAA

3 Months Ended

Mar. 31, 2023

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 common shareholders and, accordingly, are considered participating securities that are included in the two-class method of computing basic earnings per share. Both the unvested restricted shares and other potentially dilutive common shares, and the related impact to earnings, are considered when calculating earnings per share on a diluted basis with 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 months ended March 31, 2023 and 2022, 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 March 31,
	2023			2022
Calculation of Earnings per common share - basic
Net income	$	139,574		$	113,577
Net income attributable to noncontrolling interests		(3,664	)		(2,775	)
Unvested restricted shares (allocation of earnings)		(60	)		(79	)
Dividends to MAA Series I preferred shareholders		(922	)		(922	)
Net income available for MAA common shareholders, adjusted	$	134,928		$	109,801
Weighted average common shares - basic		116,182			115,259
Earnings per common share - basic	$	1.16		$	0.95
Calculation of Earnings per common share - diluted
Net income	$	139,574		$	113,577
Net income attributable to noncontrolling interests (1)		(3,664	)		(2,775	)
Dividends to MAA Series I preferred shareholders		(922	)		(922	)
Net income available for MAA common shareholders, adjusted	$	134,988		$	109,880
Weighted average common shares - basic		116,182			115,259
Effect of dilutive securities		220			459
Weighted average common shares - diluted		116,402			115,718
Earnings per common share - diluted	$	1.16		$	0.95

(1)For the three months ended March 31, 2023 and 2022, 3.2 million OP Units 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

3 Months Ended

Mar. 31, 2023

Earnings Per Share [Abstract]

Earnings per OP Unit of MAALP

3. Earnings per OP Unit of MAALP

Basic earnings per common unit is computed 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 months ended March 31, 2023 and 2022, MAALP’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 March 31,
	2023			2022
Calculation of Earnings per common unit - basic
Net income	$	139,574		$	113,577
Net loss attributable to noncontrolling interests		—			293
Unvested restricted units (allocation of earnings)		(60	)		(79	)
Distributions to MAALP Series I preferred unitholders		(922	)		(922	)
Net income available for MAALP common unitholders, adjusted	$	138,592		$	112,869
Weighted average common units - basic		119,340			118,462
Earnings per common unit - basic	$	1.16		$	0.95
Calculation of Earnings per common unit - diluted
Net income	$	139,574		$	113,577
Net loss attributable to noncontrolling interests		—			293
Distributions to MAALP Series I preferred unitholders		(922	)		(922	)
Net income available for MAALP common unitholders, adjusted	$	138,652		$	112,948
Weighted average common units - basic		119,340			118,462
Effect of dilutive securities		220			459
Weighted average common units - diluted		119,560			118,921
Earnings per common unit - diluted	$	1.16		$	0.95

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MAA Equity

3 Months Ended

Mar. 31, 2023

M A A Equity [Abstract]

MAA Equity

4. MAA Equity

Changes in MAA’s total equity and its components for the three months ended March 31, 2023 and 2022 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, 2022	$	9	$	1,152	$	7,202,834		$	(1,188,854	)	$	(10,052	)	$	163,595		$	21,064	$	6,189,748
Net income		—		—		—			135,910			—			3,664			—		139,574
Other comprehensive income - derivative     instruments		—		—		—			—			261			17			—		278
Issuance and registration of common shares		—		11		203,886			—			—			—			—		203,897
Shares repurchased and retired		—		—		(1,920	)		—			—			—			—		(1,920	)
Shares issued in exchange for common units		—		—		479			—			—			(479	)		—		—
Shares issued in exchange for redeemable stock		—		4		577			—			—			—			—		581
Redeemable stock fair market value     adjustment		—		—		—			793			—			—			—		793
Adjustment for noncontrolling interests in    Operating Partnership		—		—		(3,928	)		—			—			3,928			—		—
Amortization of unearned compensation		—		—		6,379			—			—			—			—		6,379
Dividends on preferred stock		—		—		—			(922	)		—			—			—		(922	)
Dividends on common stock ($1.4000 per     share)		—		—		—			(163,252	)		—			—			—		(163,252	)
Dividends on noncontrolling interests units    ($1.4000 per share)		—		—		—			—			—			(4,416	)		—		(4,416	)
Distribution from noncontrolling interest		—		—		—			—			—			—			256		256
EQUITY BALANCE MARCH 31, 2023	$	9	$	1,167	$	7,408,307		$	(1,216,325	)	$	(9,791	)	$	166,309		$	21,320	$	6,370,996

	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, 2021	$	9	$	1,151	$	7,230,956		$	(1,255,807	)	$	(11,132	)	$	165,116		$	23,614		$	6,153,907
Net income (loss)		—		—		—			110,802			—			3,068			(293	)		113,577
Other comprehensive income - derivative     instruments		—		—		—			—			272			7			—			279
Issuance and registration of common shares		—		—		21			—			—			—			—			21
Shares repurchased and retired		—		—		(3,162	)		—			—			—			—			(3,162	)
Exercise of stock options		—		—		28			—			—			—			—			28
Shares issued in exchange for common units		—		—		193			—			—			(193	)		—			—
Redeemable stock fair market value     adjustment		—		—		—			2,533			—			—			—			2,533
Adjustment for noncontrolling interests in    Operating Partnership		—		—		953			—			—			(953	)		—			—
Amortization of unearned compensation		—		—		6,928			—			—			—			—			6,928
Dividends on preferred stock		—		—		—			(922	)		—			—			—			(922	)
Dividends on common stock ($1.0875 per    share)		—		—		—			(125,433	)		—			—			—			(125,433	)
Dividends on noncontrolling interests units    ($1.0875 per share)		—		—		—			—			—			(3,479	)		—			(3,479	)
Acquisition of noncontrolling interest		—		—		(37,443	)		—			—			—			(5,627	)		(43,070	)
Contribution from noncontrolling interest		—		—		—			—			—			—			2,155			2,155
EQUITY BALANCE MARCH 31, 2022	$	9	$	1,151	$	7,198,474		$	(1,268,827	)	$	(10,860	)	$	163,566		$	19,849		$	6,103,362

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MAALP Capital

3 Months Ended

Mar. 31, 2023

M A A L P Capital [Abstract]

MAALP Capital

5. MAALP Capital

Changes in MAALP’s total capital and its components for the three months ended March 31, 2023 and 2022 were as follows (dollars in thousands):

	Mid-America Apartments, L.P. Unitholders’ Capital
	General Partner			Limited Partners			Preferred Units			Accumulated Other Comprehensive Loss			Noncontrolling Interests - Consolidated Real Estate Entities		Total Partnership Capital
CAPITAL BALANCE DECEMBER 31, 2022	$	5,948,498		$	163,595		$	66,840		$	(10,268	)	$	21,064	$	6,189,729
Net income		134,988			3,664			922			—			—		139,574
Other comprehensive income - derivative instruments		—			—			—			278			—		278
Issuance of units		203,897			—			—			—			—		203,897
Units repurchased and retired		(1,920	)		—			—			—			—		(1,920	)
General partnership units issued in exchange for limited     partnership units		479			(479	)		—			—			—		—
Units issued in exchange for redeemable stock		581			—			—			—			—		581
Redeemable units fair market value adjustment		793			—			—			—			—		793
Adjustment for limited partners’ capital at redemption value		(3,945	)		3,945			—			—			—		—
Amortization of unearned compensation		6,379			—			—			—			—		6,379
Distributions to preferred unitholders		—			—			(922	)		—			—		(922	)
Distributions to common unitholders ($1.4000 per unit)		(163,252	)		(4,416	)		—			—			—		(167,668	)
Distribution from noncontrolling interest		—			—			—			—			256		256
CAPITAL BALANCE MARCH 31, 2023	$	6,126,498		$	166,309		$	66,840		$	(9,990	)	$	21,320	$	6,370,977

	Mid-America Apartments, L.P. Unitholders’ Capital
	General Partner			Limited Partners			Preferred Units			Accumulated Other Comprehensive Loss			Noncontrolling Interests - Consolidated Real Estate Entities			Total Partnership Capital
CAPITAL BALANCE DECEMBER 31, 2021	$	5,909,700		$	165,116		$	66,840		$	(11,382	)	$	23,614		$	6,153,888
Net income (loss)		109,880			3,068			922			—			(293	)		113,577
Other comprehensive income - derivative instruments		—			—			—			279			—			279
Issuance of units		21			—			—			—			—			21
Units repurchased and retired		(3,162	)		—			—			—			—			(3,162	)
Exercise of unit options		28			—			—			—			—			28
General partnership units issued in exchange for limited     partnership units		193			(193	)		—			—			—			—
Redeemable units fair market value adjustment		2,533			—			—			—			—			2,533
Adjustment for limited partners’ capital at redemption value		946			(946	)		—			—			—			—
Amortization of unearned compensation		6,928			—			—			—			—			6,928
Distributions to preferred unitholders		—			—			(922	)		—			—			(922	)
Distributions to common unitholders ($1.0875 per unit)		(125,433	)		(3,479	)		—			—			—			(128,912	)
Acquisition of noncontrolling interest		(37,443	)		—			—			—			(5,627	)		(43,070	)
Contribution from noncontrolling interest		—			—			—			—			2,155			2,155
CAPITAL BALANCE MARCH 31, 2022	$	5,864,191		$	163,566		$	66,840		$	(11,103	)	$	19,849		$	6,103,343

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Borrowings

3 Months Ended

Mar. 31, 2023

Notes To Financial Statements [Abstract]

Borrowings

6. Borrowings

The following table summarizes the Company’s outstanding debt as of March 31, 2023 (dollars in thousands):

	Balance			Weighted Average Effective Rate			Weighted Average Contract Maturity
Unsecured debt
Fixed rate senior notes	$	4,050,000			3.4	%	5/14/2029
Debt issuance costs, discounts, premiums and fair market value adjustments		(18,000	)
Total unsecured debt	$	4,032,000			3.4	%
Secured debt
Fixed rate property mortgages	$	366,792			4.4	%	11/4/2048
Debt issuance costs		(3,142	)
Total secured debt	$	363,650			4.4	%
Total outstanding debt	$	4,395,650			3.4	%

Unsecured Revolving Credit Facility

MAALP has entered into an unsecured revolving credit facility, with a borrowing capacity of $1.25 billion with an option to expand to $2.0 billion. The revolving credit facility bears interest at an adjusted Secured Overnight Financing Rate plus a spread of 0.70% to 1.40% based on an investment grade pricing grid. The revolving credit facility has a maturity date in October 2026 with an option to extend for two additional six-month periods. As of March 31, 2023, there was no outstanding balance under the revolving credit facility, while $4.3 million of capacity was used to support outstanding letters of credit.

Unsecured Commercial Paper

MAALP has established an unsecured commercial paper program whereby MAALP may issue unsecured commercial paper notes with varying maturities not to exceed 397 days up to a maximum aggregate principal amount outstanding of $625.0 million. As of March 31, 2023, there was no outstanding balance under the commercial paper program. For the three months ended March 31, 2023, the average daily borrowings outstanding under the commercial paper program were $8.2 million.

Unsecured Senior Notes

As of March 31, 2023, MAALP had $4.1 billion of publicly issued unsecured senior notes outstanding. The unsecured senior notes had maturities at issuance ranging from 5 to 30 years, with a weighted average maturity in 2029.

Secured Property Mortgages

As of March 31, 2023, MAALP had $366.8 million of fixed rate conventional property mortgages with a weighted average maturity in 2048.

As of March 31, 2023, MAALP’s debt obligations over the next 12 months consist of approximately $352 million of principal obligations, including $350.0 million of unsecured senior notes due October 2023.

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Financial Instruments and Derivatives

3 Months Ended

Mar. 31, 2023

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 March 31, 2023 and December 31, 2022 totaled $4.4 billion and $4.4 billion, respectively, and had estimated fair values of $4.0 billion and $3.9 billion (excluding prepayment penalties) as of March 31, 2023 and December 31, 2022, 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. As of March 31, 2023, the Company had no variable rate debt outstanding. The carrying value of variable rate debt as of December 31, 2022 totaled $20.0 million and had an estimated fair value of $20.0 million. The fair value of variable rate debt is determined using the stated variable rate plus the current market credit spread. The variable rates reset at various maturities typically less than 30 days, and management concluded these rates reasonably estimate current market rates.

Financial Instruments Measured at Fair Value on a Recurring Basis

As of March 31, 2023, the Company had one outstanding series of cumulative redeemable preferred stock, which is referred to as the MAA Series I preferred stock (see Note 8). The Company has recognized a derivative asset related to the redemption feature embedded in the MAA Series I preferred stock. The derivative asset 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. The analysis reflects the contractual terms of the redeemable preferred shares, which are redeemable at the Company’s option beginning on October 1, 2026 at the redemption price of $50.00 per share. The Company uses various inputs in the analysis, including trading data available on the preferred shares, estimated coupon yields on preferred stock instruments from REITs with similar credit ratings as MAA and treasury rates to estimate 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 of March 31, 2023 and December 31, 2022, the fair value of the embedded derivative was $17.8 million and $13.4 million, respectively.

The Company has determined the majority of the inputs used to value its outstanding debt and its embedded derivative fall within Level 2 of the fair value hierarchy, and as a result, the fair value valuations of its debt and embedded derivative held as of March 31, 2023 and December 31, 2022 were classified as Level 2 in the fair value hierarchy. The fair value of the Company’s marketable equity securities discussed in Note 1 is based on quoted market prices and are classified as Level 1 in the fair value hierarchy.

Terminated Cash Flow Hedges of Interest

As of March 31, 2023, the Company had $10.0 million recorded in “Accumulated other comprehensive loss”, or AOCL, related to realized losses associated with terminated interest rate swaps that were designated as cash flow hedging instruments prior to their termination. The realized losses associated with the terminated interest rate swaps are reclassified to interest expense as interest payments are made on the Company’s debt and will continue to be reclassified to interest expense until the debt’s maturity. During the next twelve months, the Company estimates an additional $1.6 million will be reclassified to earnings as an increase to “Interest expense.”

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 months ended March 31, 2023 and 2022 (dollars in thousands):

		Net Loss Reclassified from AOCL into Interest Expense
	Location of Loss Reclassified	Three months ended March 31,
Derivatives in Cash Flow Hedging Relationships	from AOCL into Income	2023			2022
Terminated interest rate swaps	Interest expense	$	(278	)	$	(279	)

		Gain Recognized in Earnings on Derivative
	Location of Gain Recognized	Three months ended March 31,
Derivative Not Designated as Hedging Instrument	in Earnings on Derivative	2023		2022
Preferred stock embedded derivative	Other non-operating income	$	4,435	$	11,896

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Shareholders' Equity of MAA

3 Months Ended

Mar. 31, 2023

Shareholders Equity Of M A A [Abstract]

Shareholders' Equity of MAA

8. Shareholders’ Equity of MAA

As of March 31, 2023, 116,600,756 shares of common stock of MAA and 3,155,699 OP Units (excluding the OP Units held by MAA) were issued and outstanding, representing a total of 119,756,455 common shares and units. As of March 31, 2022, 115,337,466 shares of common stock of MAA and 3,202,377 OP Units (excluding the OP Units held by MAA) were issued and outstanding, representing a total of 118,539,843 common shares and units.

Preferred Stock

As of March 31, 2023, 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
MAA 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.

See Note 7 for details of the valuation of the derivative asset related to the redemption feature embedded in the MAA Series I preferred stock.

Equity Forward Sale Agreements

In August 2021, MAA entered into two 18-month forward sale agreements with respect to a total of 1.1 million shares of its common stock at an initial forward sale price of $190.56 per share, which is net of issuance costs. Under the forward sale agreements, the forward sale price was subject to adjustment on a daily basis based on a floating interest rate factor equal to a specified daily rate less a spread and was decreased based on amounts related to dividends on MAA’s common stock during the term of the forward sale agreements. No shares had been settled under the forward sale agreements as of December 31, 2022. In January 2023, MAA settled its two forward sale agreements with respect to a total of 1.1 million shares at a forward price per share of $185.23, which is inclusive of adjustments made to reflect the then-current federal funds rate, the amount of dividends paid to holders of MAA common stock and commissions paid to sales agents, for net proceeds of $203.7 million. The impact of the outstanding forward sales agreements was not dilutive to the Company’s diluted earnings per share for the three months ended March 31, 2022.

At-the-Market Share Offering Program

The Company has entered into an equity distribution agreement to establish an at-the-market, or ATM, share offering program, which allows MAA to sell shares of its common stock from time to time to or through its sales agents into the existing market at current market prices, and to enter into separate forward sales agreements to or through its forward purchasers. Under its ATM program, MAA has the authority to issue up to an aggregate of 4.0 million shares of its common stock, at such times to be determined by MAA. MAA has no obligation to issue shares through the ATM program. During the three months ended March 31, 2023 and 2022, MAA did not sell any shares of common stock under its ATM program. As of March 31, 2023, 4.0 million shares remained issuable under the ATM program.

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Partners' Capital of MAALP

3 Months Ended

Mar. 31, 2023

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 March 31, 2023, there were 119,756,455 OP Units outstanding, 116,600,756, or 97.4%, 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 3,155,699 OP Units were Class A OP Units owned by Class A limited partners. As of March 31, 2022, there were 118,539,843 OP Units outstanding, 115,337,466, or 97.3%, of which were owned by MAA and 3,202,377 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 to it 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 of MAALP (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.

In January 2023, MAA settled its two forward sale agreements with respect to a total of 1.1 million shares for net proceeds of $203.7 million. MAA contributed the proceeds to MAALP in exchange for the issuance of 1.1 million Class B OP Units.

As of March 31, 2023, a total of 3,155,699 Class A OP Units were outstanding and redeemable for 3,155,699 shares of MAA common stock, with an approximate value of $476.6 million, based on the closing price of MAA’s common stock on March 31, 2023 of $151.04 per share. As of March 31, 2022, a total of 3,202,377 Class A OP Units were outstanding and redeemable for 3,202,377 shares of MAA common stock, with an approximate value of $670.7 million, based on the closing price of MAA’s common stock on March 31, 2022 of $209.45 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 March 31, 2023, 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 March 31, 2023, 867,846 units of the MAALP Series I preferred units were outstanding and owned by MAA. See Note 7 for details of the valuation of the derivative asset related to the redemption feature embedded in the MAALP Series I preferred units.

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Commitments and Contingencies

3 Months Ended

Mar. 31, 2023

Loss Contingency [Abstract]

Commitments and Contingencies

10. Commitments and Contingencies

Leases

The Company’s operating 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 commitments related to negligible office and equipment operating leases. As of March 31, 2023, the Company’s operating leases had a weighted average remaining lease term of approximately 33 years and a weighted average discount rate of approximately 4.5%.

The table below reconciles undiscounted cash flows for each of the first five years and total of the remaining years to the right-of-use lease liabilities recorded on the Condensed Consolidated Balance Sheets as of March 31, 2023 (in thousands):

	Operating Leases
2023	$	2,162
2024		2,862
2025		2,872
2026		2,920
2027		2,969
Thereafter		57,024
Total minimum lease payments		70,809
Net present value adjustments		(42,519	)
Right-of-use lease liabilities	$	28,290

Loss Contingencies

In late 2022 and early 2023, 28 putative class action lawsuits were filed against RealPage, Inc., along with over 50 of the largest owners and operators of apartment communities in the country, including the Company (the “RealPage Litigation”) alleging that RealPage and lessors of multifamily residential real estate conspired to artificially inflate the prices of multifamily residential real estate above competitive levels through the use of RealPage’s revenue management software. The plaintiffs are seeking monetary damages and attorneys’ fees and costs and injunctive relief. The Company believes the RealPage Litigation is without merit as it pertains to the Company and plans to vigorously defend the RealPage Litigation. On April 10, 2023, the Joint Panel on Multidistrict Litigation issued an order centralizing the cases in the Middle District of Tennessee for coordinated or consolidated pretrial proceedings. The Company is unable to predict the outcome of the RealPage Litigation given its early stage. While the Company does not believe that the RealPage Litigation will have a material adverse effect on its financial condition, the Company cannot give assurance that the RealPage Litigation will not have a material effect on its results of operations.

The Company is subject to various other legal proceedings and claims that arise in the ordinary course of its business operations. While the resolution of these matters cannot be predicted with certainty, management does not currently believe that these 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. Matters that arise out of allegations of bodily injury, property damage and employment practices are generally covered by insurance.

As of March 31, 2023 and December 31, 2022, the Company’s accrual for loss contingencies relating to unresolved legal matters, including the cost to defend, was $9.8 million and $10.0 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

3 Months Ended

Mar. 31, 2023

Notes To Financial Statements [Abstract]

Segment Information

11. Segment Information

As of March 31, 2023, the Company owned and operated 290 multifamily apartment communities (which does not include development communities under construction) in 15 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. The Company has aggregated its operating segments into two reportable segments as management believes the apartment communities in each reportable segment generally have similar economic characteristics, facilities, services and residents.

The following reflects the two reportable segments for the Company:

•Same Store includes communities that the Company has owned and which have been stabilized for at least a full 12 months as of the first day of the calendar year.

•Non-Same Store and Other includes recently acquired communities, communities being developed or in lease-up, communities that have been disposed of or identified for disposition, communities that have experienced a significant casualty loss and stabilized communities that do not meet the requirements to be Same Store communities. Also included in Non-Same Store and Other are non-multifamily activities and storm related expenses related to hurricanes.

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. Communities previously in development or lease-up are added to the Same Store segment on the first day of the calendar year after the community has been owned and stabilized for at least a full 12 months. Communities are considered stabilized when achieving 90% average physical occupancy for 90 days.

The chief operating decision maker utilizes net operating income, or NOI, in evaluating the performance of the 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 directly related to property operating performance.

Revenues and NOI for each reportable segment for the three months ended March 31, 2023 and 2022 were as follows (in thousands):

	Three months ended March 31,
	2023			2022
Revenues:
Same Store
Rental revenues	$	497,250		$	447,599
Other property revenues		2,760			2,724
Total Same Store revenues		500,010			450,323
Non-Same Store and Other
Rental revenues		28,843			25,516
Other property revenues		180			239
Total Non-Same Store and Other revenues		29,023			25,755
Total rental and other property revenues	$	529,033		$	476,078
Net Operating Income:
Same Store NOI	$	328,940		$	292,436
Non-Same Store and Other NOI		17,290			14,222
Total NOI		346,230			306,658
Depreciation and amortization		(138,501	)		(133,738	)
Property management expenses		(17,928	)		(16,537	)
General and administrative expenses		(15,923	)		(16,323	)
Interest expense		(37,281	)		(39,121	)
Gain (loss) on sale of depreciable real estate assets		15			(1	)
Gain on sale of non-depreciable real estate assets		54			23
Other non-operating income		3,467			10,795
Income tax (expense) benefit		(944	)		1,442
Income from real estate joint venture		385			379
Net income attributable to noncontrolling interests		(3,664	)		(2,775	)
Dividends to MAA Series I preferred shareholders		(922	)		(922	)
Net income available for MAA common shareholders	$	134,988		$	109,880

Assets for each reportable segment as of March 31, 2023 and December 31, 2022 were as follows (in thousands):

	March 31, 2023		December 31, 2022
Assets:
Same Store	$	9,650,594	$	9,697,889
Non-Same Store and Other		1,422,046		1,370,721
Corporate		279,671		172,555
Total assets	$	11,352,311	$	11,241,165

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Real Estate Acquisition and Disposition

3 Months Ended

Mar. 31, 2023

Real Estate [Abstract]

Real Estate Acquisitions and Dispositions

12. Real Estate Acquisition and Disposition

During the three months ended March 31, 2023, the Company acquired a six-acre land parcel in the Orlando, Florida market for approximately $12 million. During the three months ended March 31, 2023, the Company closed on the disposition of 21 acres of land in the Gulf Shores, Alabama market for gross proceeds of approximately $3 million, resulting in the recognition of a negligible gain on the sale of non-depreciable real estate assets.

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Organization and Summary of Significant Accounting Policies (Policies)

9 Months Ended

Sep. 30, 2022

Accounting Policies [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 U.S. 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. 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 that 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 because 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 significant influence or control include ownership of voting interests and participatory rights of investors (see “Investments in Unconsolidated Affiliates” below).

Noncontrolling Interests

Noncontrolling Interests

As of March 31, 2023, 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; and (2) noncontrolling interests related to its consolidated real estate entities. The noncontrolling interests 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.

The noncontrolling interests relating to the Company’s five consolidated real estate entities are owned by private real estate companies that are generally responsible for the development, construction and lease-up of the apartment communities that are owned through the consolidated real estate entities with a noncontrolling interest. The entities were determined to be VIE’s with the Company designated as the primary beneficiary. As a result, the accounts of the entities are consolidated by the Company. As of March 31, 2023, the consolidated assets of the Company’s consolidated real estate entities with a noncontrolling interest were $300.1 million, and consolidated liabilities were $22.3 million. As of December 31, 2022, the consolidated assets of the Company’s consolidated real estate entities with a noncontrolling interest were $279.6 million, and consolidated liabilities were $14.5 million. During the three months ended March 31, 2022, the Company paid $43.1 million to acquire the noncontrolling interest of one consolidated real estate entity.

Investments in Unconsolidated Affiliates

Investments in Unconsolidated Affiliates

The Company uses the equity method to account for its investments in a real estate joint venture and five technology-focused limited partnerships that each qualify as a VIE. Management determined the Company is not the primary beneficiary in any of these investments but does have the ability to exert significant influence over the operations and financial policies of the real estate joint venture and considers its investments in the limited partnerships to be more than minor. The Company’s investment in the real estate joint venture was $42.3 million as of March 31, 2023 and December 31, 2022, respectively, and is included in “Investment in real estate joint venture” in the accompanying Condensed Consolidated Balance Sheets.

The Company accounts for its investments in the technology-focused limited partnerships on a three month lag due to the timing the limited partnerships’ financial information is made available to the Company. As of March 31, 2023 and December 31, 2022, the Company’s investments in the limited partnerships were $30.1 million and $36.7 million, respectively, and are included in “Other assets” in the accompanying Condensed Consolidated Balance Sheets with any related gains and losses, including unrealized gains and losses, recognized in “Other non-operating income” in the accompanying Condensed Consolidated Statements of Operations. The decrease in the Company’s investments in the limited partnerships was primarily driven by the distribution of publicly traded marketable securities. During the three months ended March 31, 2023 and 2022, the Company recognized $0.1 million and $8.7 million of expense, respectively, from its investments in the limited partnerships. As of March 31, 2023, the Company was committed to make additional capital contributions totaling $44.0 million if and when called by the general partners of the limited partnerships.

Marketable Equity Securities

Marketable Equity Securities

During the three months ended March 31, 2023, two of the technology-focused limited partnerships that are accounted for as investments in unconsolidated affiliates distributed publicly traded marketable equity securities to the Company and the other limited partners. The Company’s investment in marketable equity securities is measured at fair value based on the quoted share price of the securities and is included in “Other assets” in the accompanying Condensed Consolidated Balance Sheets, with any related gains and losses, including unrealized gains and losses, recognized in “Other non-operating income” in the accompanying Condensed Consolidated Statements of Operations. As of March 31, 2023 and December 31, 2022, the Company’s investment in the marketable equity securities was $14.9 million and $8.0 million, respectively. During the three months ended March 31, 2023 and 2022, the Company recognized $0.9 million and $1.5 million of expense, respectively, from its investment in marketable equity securities.

Revenue Recognition

Revenue Recognition

The Company primarily leases multifamily residential apartments to residents under operating leases generally due on a monthly basis with terms of approximately one year or less. Rental revenues are recognized in accordance with Accounting Standards Codification (“ASC”) Topic 842, Leases, 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 residents, 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 94% of the Company’s total revenues and include gross rents charged less adjustments for concessions and bad debt. Approximately 5% of the Company’s total revenues represent non-lease reimbursable property revenues from its residents for utility reimbursements, which are generally recognized and due on a monthly basis as residents obtain control of the service over the term of the lease. The remaining 1% of the Company’s total revenues represents other non-lease property revenues primarily driven by nonrefundable fees and commissions which are recognized when earned.

In accordance with ASC Topic 842, rental revenues and non-lease reimbursable property revenues meet the criteria to be aggregated into a single lease component and are reported on a combined basis in the line item “Rental revenues,” as presented in the disaggregation of the Company’s revenues in Note 11. Other non-lease property revenues are accounted for in accordance with ASC Topic 606, Revenue from Contracts with Customers, which requires revenue recognized outside of the scope of ASC Topic 842 to be 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. Other non-lease property revenues are reported in the line item “Other property revenues”, as presented in the disaggregation of the Company’s revenues in Note 11.

Leases

Leases

The Company is the lessee under certain ground, office, equipment and other operational leases, all of which are accounted for as operating leases in accordance with ASC Topic 842. The Company recognizes a right-of-use asset for the right to use the underlying asset for all leases where the Company is the lessee with terms of more than twelve months, and a related lease liability for the obligation to make lease payments. Expenses related to leases determined to be operating leases are recognized on a straight-line basis. As of March 31, 2023 and December 31, 2022, right-of-use assets recorded within “Other assets” totaled $44.0 million and $44.6 million, respectively, and related lease liabilities recorded within “Accrued expenses and other liabilities” totaled $28.3 million and $28.7 million, respectively, in the Condensed Consolidated Balance Sheets. Lease expense recognized for the three months ended March 31, 2023 and 2022 was immaterial to the Company. Cash paid for amounts included in the measurement of operating lease liabilities during the three months ended March 31, 2023 and 2022 was also immaterial. See Note 10 for additional disclosures regarding leases.

Fair value Measurements

Fair Value Measurements

The Company applies the guidance in ASC Topic 820, Fair Value Measurements and Disclosures, to the valuation of real estate assets recorded at fair value, to its impairment valuation analysis of real estate assets and to its valuation and disclosure of the fair value of financial instruments, which primarily consists of marketable equity securities, indebtedness and derivative instruments. Fair value disclosures required under ASC Topic 820 as well as the Company’s derivative accounting policies 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.

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Earnings Per Common Share of MAA (Tables)

3 Months Ended

Mar. 31, 2023

Earnings Per Common Share Of M A A [Abstract]

Schedule of Computation of Earnings Per Share

For the three months ended March 31, 2023 and 2022, 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 March 31,
	2023			2022
Calculation of Earnings per common share - basic
Net income	$	139,574		$	113,577
Net income attributable to noncontrolling interests		(3,664	)		(2,775	)
Unvested restricted shares (allocation of earnings)		(60	)		(79	)
Dividends to MAA Series I preferred shareholders		(922	)		(922	)
Net income available for MAA common shareholders, adjusted	$	134,928		$	109,801
Weighted average common shares - basic		116,182			115,259
Earnings per common share - basic	$	1.16		$	0.95
Calculation of Earnings per common share - diluted
Net income	$	139,574		$	113,577
Net income attributable to noncontrolling interests (1)		(3,664	)		(2,775	)
Dividends to MAA Series I preferred shareholders		(922	)		(922	)
Net income available for MAA common shareholders, adjusted	$	134,988		$	109,880
Weighted average common shares - basic		116,182			115,259
Effect of dilutive securities		220			459
Weighted average common shares - diluted		116,402			115,718
Earnings per common share - diluted	$	1.16		$	0.95

(1)For the three months ended March 31, 2023 and 2022, 3.2 million OP Units 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)

3 Months Ended

Mar. 31, 2023

Earnings Per Share [Abstract]

Schedule of Earnings Per Common Unit

For the three months ended March 31, 2023 and 2022, MAALP’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 March 31,
	2023			2022
Calculation of Earnings per common unit - basic
Net income	$	139,574		$	113,577
Net loss attributable to noncontrolling interests		—			293
Unvested restricted units (allocation of earnings)		(60	)		(79	)
Distributions to MAALP Series I preferred unitholders		(922	)		(922	)
Net income available for MAALP common unitholders, adjusted	$	138,592		$	112,869
Weighted average common units - basic		119,340			118,462
Earnings per common unit - basic	$	1.16		$	0.95
Calculation of Earnings per common unit - diluted
Net income	$	139,574		$	113,577
Net loss attributable to noncontrolling interests		—			293
Distributions to MAALP Series I preferred unitholders		(922	)		(922	)
Net income available for MAALP common unitholders, adjusted	$	138,652		$	112,948
Weighted average common units - basic		119,340			118,462
Effect of dilutive securities		220			459
Weighted average common units - diluted		119,560			118,921
Earnings per common unit - diluted	$	1.16		$	0.95

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MAA Equity (Tables)

3 Months Ended

Mar. 31, 2023

M A A Equity [Abstract]

Summary of Changes in Total Equity and its Components

Changes in MAA’s total equity and its components for the three months ended March 31, 2023 and 2022 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, 2022	$	9	$	1,152	$	7,202,834		$	(1,188,854	)	$	(10,052	)	$	163,595		$	21,064	$	6,189,748
Net income		—		—		—			135,910			—			3,664			—		139,574
Other comprehensive income - derivative     instruments		—		—		—			—			261			17			—		278
Issuance and registration of common shares		—		11		203,886			—			—			—			—		203,897
Shares repurchased and retired		—		—		(1,920	)		—			—			—			—		(1,920	)
Shares issued in exchange for common units		—		—		479			—			—			(479	)		—		—
Shares issued in exchange for redeemable stock		—		4		577			—			—			—			—		581
Redeemable stock fair market value     adjustment		—		—		—			793			—			—			—		793
Adjustment for noncontrolling interests in    Operating Partnership		—		—		(3,928	)		—			—			3,928			—		—
Amortization of unearned compensation		—		—		6,379			—			—			—			—		6,379
Dividends on preferred stock		—		—		—			(922	)		—			—			—		(922	)
Dividends on common stock ($1.4000 per     share)		—		—		—			(163,252	)		—			—			—		(163,252	)
Dividends on noncontrolling interests units    ($1.4000 per share)		—		—		—			—			—			(4,416	)		—		(4,416	)
Distribution from noncontrolling interest		—		—		—			—			—			—			256		256
EQUITY BALANCE MARCH 31, 2023	$	9	$	1,167	$	7,408,307		$	(1,216,325	)	$	(9,791	)	$	166,309		$	21,320	$	6,370,996

	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, 2021	$	9	$	1,151	$	7,230,956		$	(1,255,807	)	$	(11,132	)	$	165,116		$	23,614		$	6,153,907
Net income (loss)		—		—		—			110,802			—			3,068			(293	)		113,577
Other comprehensive income - derivative     instruments		—		—		—			—			272			7			—			279
Issuance and registration of common shares		—		—		21			—			—			—			—			21
Shares repurchased and retired		—		—		(3,162	)		—			—			—			—			(3,162	)
Exercise of stock options		—		—		28			—			—			—			—			28
Shares issued in exchange for common units		—		—		193			—			—			(193	)		—			—
Redeemable stock fair market value     adjustment		—		—		—			2,533			—			—			—			2,533
Adjustment for noncontrolling interests in    Operating Partnership		—		—		953			—			—			(953	)		—			—
Amortization of unearned compensation		—		—		6,928			—			—			—			—			6,928
Dividends on preferred stock		—		—		—			(922	)		—			—			—			(922	)
Dividends on common stock ($1.0875 per    share)		—		—		—			(125,433	)		—			—			—			(125,433	)
Dividends on noncontrolling interests units    ($1.0875 per share)		—		—		—			—			—			(3,479	)		—			(3,479	)
Acquisition of noncontrolling interest		—		—		(37,443	)		—			—			—			(5,627	)		(43,070	)
Contribution from noncontrolling interest		—		—		—			—			—			—			2,155			2,155
EQUITY BALANCE MARCH 31, 2022	$	9	$	1,151	$	7,198,474		$	(1,268,827	)	$	(10,860	)	$	163,566		$	19,849		$	6,103,362

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MAALP Capital (Tables)

3 Months Ended

Mar. 31, 2023

M A A L P Capital [Abstract]

Summary of Changes in Total Capital and its Components

Changes in MAALP’s total capital and its components for the three months ended March 31, 2023 and 2022 were as follows (dollars in thousands):

	Mid-America Apartments, L.P. Unitholders’ Capital
	General Partner			Limited Partners			Preferred Units			Accumulated Other Comprehensive Loss			Noncontrolling Interests - Consolidated Real Estate Entities		Total Partnership Capital
CAPITAL BALANCE DECEMBER 31, 2022	$	5,948,498		$	163,595		$	66,840		$	(10,268	)	$	21,064	$	6,189,729
Net income		134,988			3,664			922			—			—		139,574
Other comprehensive income - derivative instruments		—			—			—			278			—		278
Issuance of units		203,897			—			—			—			—		203,897
Units repurchased and retired		(1,920	)		—			—			—			—		(1,920	)
General partnership units issued in exchange for limited     partnership units		479			(479	)		—			—			—		—
Units issued in exchange for redeemable stock		581			—			—			—			—		581
Redeemable units fair market value adjustment		793			—			—			—			—		793
Adjustment for limited partners’ capital at redemption value		(3,945	)		3,945			—			—			—		—
Amortization of unearned compensation		6,379			—			—			—			—		6,379
Distributions to preferred unitholders		—			—			(922	)		—			—		(922	)
Distributions to common unitholders ($1.4000 per unit)		(163,252	)		(4,416	)		—			—			—		(167,668	)
Distribution from noncontrolling interest		—			—			—			—			256		256
CAPITAL BALANCE MARCH 31, 2023	$	6,126,498		$	166,309		$	66,840		$	(9,990	)	$	21,320	$	6,370,977

	Mid-America Apartments, L.P. Unitholders’ Capital
	General Partner			Limited Partners			Preferred Units			Accumulated Other Comprehensive Loss			Noncontrolling Interests - Consolidated Real Estate Entities			Total Partnership Capital
CAPITAL BALANCE DECEMBER 31, 2021	$	5,909,700		$	165,116		$	66,840		$	(11,382	)	$	23,614		$	6,153,888
Net income (loss)		109,880			3,068			922			—			(293	)		113,577
Other comprehensive income - derivative instruments		—			—			—			279			—			279
Issuance of units		21			—			—			—			—			21
Units repurchased and retired		(3,162	)		—			—			—			—			(3,162	)
Exercise of unit options		28			—			—			—			—			28
General partnership units issued in exchange for limited     partnership units		193			(193	)		—			—			—			—
Redeemable units fair market value adjustment		2,533			—			—			—			—			2,533
Adjustment for limited partners’ capital at redemption value		946			(946	)		—			—			—			—
Amortization of unearned compensation		6,928			—			—			—			—			6,928
Distributions to preferred unitholders		—			—			(922	)		—			—			(922	)
Distributions to common unitholders ($1.0875 per unit)		(125,433	)		(3,479	)		—			—			—			(128,912	)
Acquisition of noncontrolling interest		(37,443	)		—			—			—			(5,627	)		(43,070	)
Contribution from noncontrolling interest		—			—			—			—			2,155			2,155
CAPITAL BALANCE MARCH 31, 2022	$	5,864,191		$	163,566		$	66,840		$	(11,103	)	$	19,849		$	6,103,343

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Borrowings (Tables)

3 Months Ended

Mar. 31, 2023

Debt Disclosure [Abstract]

Summary of Outstanding Debt

The following table summarizes the Company’s outstanding debt as of March 31, 2023 (dollars in thousands):

	Balance			Weighted Average Effective Rate			Weighted Average Contract Maturity
Unsecured debt
Fixed rate senior notes	$	4,050,000			3.4	%	5/14/2029
Debt issuance costs, discounts, premiums and fair market value adjustments		(18,000	)
Total unsecured debt	$	4,032,000			3.4	%
Secured debt
Fixed rate property mortgages	$	366,792			4.4	%	11/4/2048
Debt issuance costs		(3,142	)
Total secured debt	$	363,650			4.4	%
Total outstanding debt	$	4,395,650			3.4	%

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Financial Instruments and Derivatives (Tables)

3 Months Ended

Mar. 31, 2023

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 months ended March 31, 2023 and 2022 (dollars in thousands):

		Net Loss Reclassified from AOCL into Interest Expense
	Location of Loss Reclassified	Three months ended March 31,
Derivatives in Cash Flow Hedging Relationships	from AOCL into Income	2023			2022
Terminated interest rate swaps	Interest expense	$	(278	)	$	(279	)

		Gain Recognized in Earnings on Derivative
	Location of Gain Recognized	Three months ended March 31,
Derivative Not Designated as Hedging Instrument	in Earnings on Derivative	2023		2022
Preferred stock embedded derivative	Other non-operating income	$	4,435	$	11,896

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Shareholders' Equity of MAA (Tables)

3 Months Ended

Mar. 31, 2023

Shareholders Equity Of M A A [Abstract]

Schedule of Cumulative Redeemable Preferred Stock

As of March 31, 2023, 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
MAA 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)

3 Months Ended

Mar. 31, 2023

Loss Contingency [Abstract]

Schedule of Right of Use Lease Obligations

The table below reconciles undiscounted cash flows for each of the first five years and total of the remaining years to the right-of-use lease liabilities recorded on the Condensed Consolidated Balance Sheets as of March 31, 2023 (in thousands):

	Operating Leases
2023	$	2,162
2024		2,862
2025		2,872
2026		2,920
2027		2,969
Thereafter		57,024
Total minimum lease payments		70,809
Net present value adjustments		(42,519	)
Right-of-use lease liabilities	$	28,290

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Segment Information (Tables)

3 Months Ended

Mar. 31, 2023

Notes To Financial Statements [Abstract]

Revenues and NOI for Reportable Segment

Revenues and NOI for each reportable segment for the three months ended March 31, 2023 and 2022 were as follows (in thousands):

	Three months ended March 31,
	2023			2022
Revenues:
Same Store
Rental revenues	$	497,250		$	447,599
Other property revenues		2,760			2,724
Total Same Store revenues		500,010			450,323
Non-Same Store and Other
Rental revenues		28,843			25,516
Other property revenues		180			239
Total Non-Same Store and Other revenues		29,023			25,755
Total rental and other property revenues	$	529,033		$	476,078
Net Operating Income:
Same Store NOI	$	328,940		$	292,436
Non-Same Store and Other NOI		17,290			14,222
Total NOI		346,230			306,658
Depreciation and amortization		(138,501	)		(133,738	)
Property management expenses		(17,928	)		(16,537	)
General and administrative expenses		(15,923	)		(16,323	)
Interest expense		(37,281	)		(39,121	)
Gain (loss) on sale of depreciable real estate assets		15			(1	)
Gain on sale of non-depreciable real estate assets		54			23
Other non-operating income		3,467			10,795
Income tax (expense) benefit		(944	)		1,442
Income from real estate joint venture		385			379
Net income attributable to noncontrolling interests		(3,664	)		(2,775	)
Dividends to MAA Series I preferred shareholders		(922	)		(922	)
Net income available for MAA common shareholders	$	134,988		$	109,880

Assets for Reportable Segment

Assets for each reportable segment as of March 31, 2023 and December 31, 2022 were as follows (in thousands):

	March 31, 2023		December 31, 2022
Assets:
Same Store	$	9,650,594	$	9,697,889
Non-Same Store and Other		1,422,046		1,370,721
Corporate		279,671		172,555
Total assets	$	11,352,311	$	11,241,165

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Organization and Summary of Significant Accounting Policies - Additional Information (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2023 USD ($) Properties State Property Community shares	Mar. 31, 2022 USD ($) shares	Dec. 31, 2025 Property	Dec. 31, 2024 Property	Dec. 31, 2023 Property	Dec. 31, 2022 USD ($) shares
Real Estate Properties [Line Items]
General Partners' Capital Account, Units Outstanding | shares	116,600,756	115,337,466
Number of Real Estate Properties | Community	290
Development and capital improvements in progress	$ 391,439					$ 332,035
Number of States in which Entity Operates | State	16
Consolidated assets	$ 11,352,311					11,241,165
Consolidated liabilities	4,961,725					5,030,746
Real Estate Investments, Joint Ventures	$ 44,000
Percentage Of Rental Revenue From Leasing Of Apartment Homes	94.00%
Percentage Of Reimbursable Revenue From Leasing Of Apartment Homes	5.00%
Percentage of Rental Revenue and Other Income From Non-leasing Activities	1.00%
Operating Lease, Right-of-Use Asset, Statement of Financial Position	Other assets
Operating Lease, Liability, Statement of Financial Position [Extensible Enumeration]	Accrued expenses and other liabilities
Operating Lease, Right-of-Use Asset	$ 44,000					44,600
Right-of-use Lease, Liability	28,290					28,700
Marketable equity securities	14,900					8,000
Investment Income, Investment Expense	$ 900	$ 1,500
Operating lease weighted average remaining lease term	33 years
Operating lease weighted average discount rate	4.50%
Limited Partnership [Member]
Real Estate Properties [Line Items]
Investment Income, Investment Expense	$ 100	8,700
Other Assets [Member]
Real Estate Properties [Line Items]
Real Estate Investments, Joint Ventures	30,100					$ 36,700
Real Estate [Member]
Real Estate Properties [Line Items]
Cash proceeds		$ 43,100
Real Estate [Member] | Post Massachusetts Avenue [Member]
Real Estate Properties [Line Items]
Real Estate Investments, Joint Ventures	$ 42,300
Maximum [Member] | Accounting Standards Update 2016-02 [Member]
Real Estate Properties [Line Items]
Operating lease, term of contract	1 year
Development Properties [Member]
Real Estate Properties [Line Items]
Number of Real Estate Properties | Community	6
Number of units under development community | Properties	2,310
Development Properties [Member] | Expected Costs
Real Estate Properties [Line Items]
Development and capital improvements in progress	$ 731,500
Development Properties [Member] | Scenario Forecast [Member]
Real Estate Properties [Line Items]
Number of Real Estate Properties | Property			2	2	2
Retail
Real Estate Properties [Line Items]
Number of Real Estate Properties | Property	34
M A A L P
Real Estate Properties [Line Items]
Limited Liability Company (LLC) or Limited Partnership (LP), Managing Member or General Partner, Ownership Interest	97.40%	97.30%
Limited Partnership [Member]
Real Estate Properties [Line Items]
General Partners' Capital Account, Units Outstanding | shares	116,600,756					115,480,336
Number of Real Estate Properties | Property	1
Development and capital improvements in progress	$ 391,439					$ 332,035
Consolidated assets	11,352,311					11,241,165
Consolidated liabilities	4,961,744					5,030,765
Limited Partnership [Member] | Real Estate [Member] | Variable Interest Entity Primary Beneficiary [Member]
Real Estate Properties [Line Items]
Consolidated assets	300,100					279,600
Consolidated liabilities	$ 22,300					$ 14,500
Limited Partnership [Member] | Minimum [Member]
Real Estate Properties [Line Items]
Percentage of ownership interests of all consolidated subsidiaries (percent)	80.00%
Limited Partnership [Member] | Maximum [Member]
Real Estate Properties [Line Items]
Percentage of ownership interests of all consolidated subsidiaries (percent)	100.00%
Limited Partnership [Member] | Development Properties [Member] | Costs Incurred To Date
Real Estate Properties [Line Items]
Development and capital improvements in progress	$ 342,600

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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
		Mar. 31, 2023	Mar. 31, 2022
Earnings Per Share Disclosure [Line Items]
Income from Continuing Operations, Including Portion Attributable to Noncontrolling Interest		$ 139,574	$ 113,577
Income from continuing operations attributable to noncontrolling interests		(3,664)	(2,775)
Income from continuing operations allocated to unvested restricted shares		(60)	(79)
Dividends to MAA Series I preferred shareholders		(922)	(922)
Income from continuing operations available for common shareholders, adjusted		$ 134,928	$ 109,801
Weighted average common shares - basic		116,182	115,259
Earnings per common share - basic		$ 1.16	$ 0.95
Income from Continuing Operations, Including Portion Attributable to Noncontrolling Interest		$ 139,574	$ 113,577
Income from continuing operations attributable to noncontrolling interests	[1]	(3,664)	(2,775)
Net income available for MAA common shareholders, adjusted		$ 134,988	$ 109,880
Effect of dilutive securities		220	459
Weighted average common shares - diluted		116,402	115,718
Earnings per common share - diluted		$ 1.16	$ 0.95
Limited Partnership Units [Member]
Earnings Per Share Disclosure [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount		3,200	3,200

[1] For the three months ended March 31, 2023 and 2022, 3.2 million OP Units 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, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2023	Sep. 30, 2022	Mar. 31, 2022
Earnings Per Share Disclosure [Line Items]
Net income	$ 139,574		$ 113,577
Net loss attributable to noncontrolling interests	(3,664)		(2,775)
Distributions to MAALP Series I preferred unitholders	(922)		(922)
Income from continuing operations available for common shareholders, adjusted	134,928		109,801
Net income available for MAA common shareholders, adjusted	$ 134,988		$ 109,880
Effect of dilutive securities	220		459
Weighted average common shares - diluted	116,402		115,718
Limited Partnership [Member]
Earnings Per Share Disclosure [Line Items]
Net income	$ 139,574		$ 113,577
Net loss attributable to noncontrolling interests	0	$ 0	293
Income from continuing operations allocated to unvested restricted shares	(60)		(79)
Distributions to MAALP Series I preferred unitholders	(922)		(922)
Net income available for MAALP common unitholders, adjusted	$ 138,592		$ 112,869
Weighted average common units - basic	119,340		118,462
Earnings per common unit - basic	$ 1.16		$ 0.95
Net income available for MAALP common unitholders, adjusted	$ 138,652		$ 112,948
Effect of dilutive securities	220		459
Weighted average common shares - diluted	119,560		118,921
Earnings per common unit - diluted	$ 1.16		$ 0.95

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MAA Equity - Summary of Changes in Total Equity and its Components (Details) - Mid America Apartment Communities Inc. Shareholders Equity [Member] - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance	$ 6,189,748	$ 6,153,907
Net Income Including Portion Attributable to Noncontrolling Interest	139,574	113,577
Other comprehensive income - derivative instruments	278	279
Issuance and registration of common shares	203,897	21
Shares repurchased and retired	(1,920)	(3,162)
Exercise of stock options		28
Shares issued in exchange for redeemable stock	581
Redeemable stock fair market value adjustment	793	2,533
Amortization of unearned compensation	6,379	6,928
Dividends, Preferred Stock, Cash	(922)	(922)
Dividends on common stock	(163,252)	(125,433)
Dividends on noncontrolling interest units	(4,416)	(3,479)
Acquisition of noncontrolling interest		(43,070)
Distribution to noncontrolling interest	256
Contribution from noncontrolling interest		2,155
Ending Balance	6,370,996	6,103,362
Preferred Stock [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance	9	9
Ending Balance	9	9
Common Stock [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance	1,152	1,151
Issuance and registration of common shares	11
Shares issued in exchange for redeemable stock	4
Ending Balance	1,167	1,151
Additional Paid-in Capital [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance	7,202,834	7,230,956
Issuance and registration of common shares	203,886	21
Shares repurchased and retired	(1,920)	(3,162)
Exercise of stock options		28
Shares issued in exchange for common units	479	193
Shares issued in exchange for redeemable stock	577
Adjustment for noncontrolling interests in Operating Partnership	(3,928)	953
Amortization of unearned compensation	6,379	6,928
Acquisition of noncontrolling interest		(37,443)
Ending Balance	7,408,307	7,198,474
Accumulated Distributions in Excess of Net Income [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance	(1,188,854)	(1,255,807)
Net income attributable to MAA	135,910	110,802
Redeemable stock fair market value adjustment	793	2,533
Dividends, Preferred Stock, Cash	(922)	(922)
Dividends on common stock	(163,252)	(125,433)
Ending Balance	(1,216,325)	(1,268,827)
Accumulated Other Comprehensive Loss [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance	(10,052)	(11,132)
Other comprehensive income - derivative instruments	261	272
Ending Balance	(9,791)	(10,860)
Noncontrolling Interests - Operating Partnership [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance	163,595	165,116
Net Income Attributable to Noncontrolling Interest	3,664	3,068
Other comprehensive income - derivative instruments	17	7
Shares issued in exchange for common units	(479)	(193)
Adjustment for noncontrolling interests in Operating Partnership	3,928	(953)
Dividends on noncontrolling interest units	(4,416)	(3,479)
Ending Balance	166,309	163,566
Noncontrolling Interests - Consolidated Real Estate Entities [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance	21,064	23,614
Net Income Attributable to Noncontrolling Interest		(293)
Acquisition of noncontrolling interest		(5,627)
Distribution to noncontrolling interest	256
Contribution from noncontrolling interest		2,155
Ending Balance	$ 21,320	$ 19,849

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MAA Equity - Summary of Changes in Total Equity and its Components (Parenthetical) (Details) - Mid America Apartment Communities Inc. Shareholders Equity [Member] - $ / shares	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Equity [Line Items]
Dividends on common stock, per share	$ 1.4000	$ 1.0875
Dividends on noncontrolling interests, per unit	$ 1.4000	$ 1.0875

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MAALP Capital - Summary of Changes in Total Capital and its Components (Details) - M A A L P - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Increase (Decrease) in Partners' Capital [Roll Forward]
Beginning Balance	$ 6,189,729	$ 6,153,888
Net Income Available for Common Unitholders	139,574	113,577
Other comprehensive income - derivative instruments	278	279
Issuance of units	203,897	21
Units repurchased and retired	(1,920)	(3,162)
Exercise of stock options		28
Units issued in exchange for redeemable stock	581
Redeemable stock fair market value adjustment	793	2,533
Amortization of unearned compensation	6,379	6,928
Dividends, Preferred Stock, Cash	(922)	(922)
Distributions	(167,668)	(128,912)
Distribution from noncontrolling interest	256
Acquisition of noncontrolling interest		(43,070)
Contribution from noncontrolling interest		2,155
Ending Balance	6,370,977	6,103,343
Limited Partner [Member]
Increase (Decrease) in Partners' Capital [Roll Forward]
Beginning Balance	163,595	165,116
Net income (loss)		3,068
Net Income Allocated to General Partners	3,664
General partnership units issued in exchange for limited partnership units	(479)	(193)
Adjustment for limited partners’ capital at redemption value	3,945	(946)
Distributions	(4,416)	(3,479)
Ending Balance	166,309	163,566
General Partners' Capital Account [Member]
Increase (Decrease) in Partners' Capital [Roll Forward]
Beginning Balance	5,948,498	5,909,700
Net income (loss)	134,988
Net Income Allocated to General Partners		109,880
Issuance of units	203,897	21
Units repurchased and retired	(1,920)	(3,162)
Exercise of stock options		28
General partnership units issued in exchange for limited partnership units	479	193
Units issued in exchange for redeemable stock	581
Redeemable stock fair market value adjustment	793	2,533
Adjustment for limited partners’ capital at redemption value	(3,945)	946
Amortization of unearned compensation	6,379	6,928
Distributions	(163,252)	(125,433)
Acquisition of noncontrolling interest		(37,443)
Ending Balance	6,126,498	5,864,191
Accumulated Distributions in Excess of Net Income [Member]
Increase (Decrease) in Partners' Capital [Roll Forward]
Beginning Balance	66,840	66,840
Net income (loss)	922	922
Dividends, Preferred Stock, Cash	(922)	(922)
Ending Balance	66,840	66,840
AOCI Attributable to Noncontrolling Interest [Member]
Increase (Decrease) in Partners' Capital [Roll Forward]
Beginning Balance	(10,268)	(11,382)
Other comprehensive income - derivative instruments	278	279
Ending Balance	(9,990)	(11,103)
Noncontrolling Interests-Consolidated Real Estate Entities [Member]
Increase (Decrease) in Partners' Capital [Roll Forward]
Beginning Balance	21,064	23,614
Net income (loss)		(293)
Distribution from noncontrolling interest	256
Acquisition of noncontrolling interest		(5,627)
Contribution from noncontrolling interest		2,155
Ending Balance	$ 21,320	$ 19,849

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MAALP Capital - Summary of Changes in Total Capital and its Components (Parenthetical) (Details) - $ / shares	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
M A A L P | Limited Partner [Member]
Capital Disclosure [Line Items]
Distribution Made to Limited Partner, Distributions Declared, Per Unit	$ 1.4000	$ 1.0875

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Borrowings - Summary of Outstanding Debt (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2023 USD ($)
Debt Instrument [Line Items]
Total Outstanding Debt	$ 4,395,650
Debt Instrument, Interest Rate, Effective Percentage	3.40%
Fixed Rate Property Mortgages [Member]
Debt Instrument [Line Items]
Contract Maturity	Nov. 04, 2048
Unsecured Debt [Member]
Debt Instrument [Line Items]
Total Outstanding Debt	$ 4,032,000
Debt Instrument, Interest Rate, Effective Percentage	3.40%
Unsecured Debt [Member] | Fixed Rate Debt Senior Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 4,050,000
Debt Instrument, Interest Rate, Effective Percentage	3.40%
Contract Maturity	May 14, 2029
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	$ (18,000)
Secured Debt [Member]
Debt Instrument [Line Items]
Total Outstanding Debt	363,650
Debt issuance costs	$ (3,142)
Debt Instrument, Interest Rate, Effective Percentage	4.40%
Secured Debt [Member] | Fixed Rate Property Mortgages [Member]
Debt Instrument [Line Items]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate	$ 366,792
Debt Instrument, Interest Rate, Effective Percentage	4.40%
Contract Maturity	Dec. 31, 2048

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Borrowings - Additional Information (Details) - USD ($)	3 Months Ended
	Mar. 31, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Effective Percentage	3.40%
Unsecured debt	$ 4,032,000,000	$ 4,050,910,000
Long-Term Debt, Maturity, Year One	$ 352,000,000
Fixed Rate Property Mortgages [Member]
Debt Instrument [Line Items]
Debt instrument, Maturity date	Nov. 04, 2048
Commercial Paper Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Payment Terms	397
Debt Instrument, Unused Borrowing Capacity, Amount	$ 8,200,000
Maximum [Member] | Commercial Paper Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 625,000,000.0
Unsecured Debt [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Effective Percentage	3.40%
Unsecured Debt [Member] | Fixed Rate Debt Senior Notes [Member]
Debt Instrument [Line Items]
Debt instrument, Maturity date	May 14, 2029
Debt Instrument, Face Amount	$ 4,050,000,000
Debt Instrument, Interest Rate, Effective Percentage	3.40%
Unsecured Debt [Member] | Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Line of credit facility, current Borrowing capacity	$ 1,250,000,000
Line of credit facility, maximum Borrowing capacity	$ 2,000,000,000.0
Debt instrument, Maturity date	Oct. 01, 2026
Line of Credit Facility, Amount Outstanding	$ 0
Letters of Credit Outstanding, Amount	$ 4,300,000
Unsecured Debt [Member] | Minimum [Member] | Fixed Rate Debt Senior Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Term	5 years
Unsecured Debt [Member] | Maximum [Member] | Fixed Rate Debt Senior Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Term	30 years
Unsecured Debt [Member] | Public Income Notes [Member] | Fixed Rate Debt Senior Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 4,100,000,000
Secured Debt [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Effective Percentage	4.40%
Secured Debt [Member] | Fixed Rate Property Mortgages [Member]
Debt Instrument [Line Items]
Debt instrument, Maturity date	Dec. 31, 2048
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate	$ 366,792,000
Debt Instrument, Interest Rate, Effective Percentage	4.40%
Secured Debt [Member] | Unsecured Senior Notes Due October 2023 [Member]
Debt Instrument [Line Items]
Unsecured debt	$ 350,000,000.0
SOFR [Member] | Unsecured Debt [Member] | Minimum [Member]
Debt Instrument [Line Items]
Debt instrument, Basis spread on variable rate	0.70%
SOFR [Member] | Unsecured Debt [Member] | Maximum [Member]
Debt Instrument [Line Items]
Debt instrument, Basis spread on variable rate	1.40%

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Financial Instruments and Derivatives - Additional Information (Details) - USD ($)		3 Months Ended
		Mar. 31, 2023	Dec. 31, 2022
Derivative [Line Items]
Preferred Stock, Redemption Price Per Share	[1]	$ 50.00
Preferred Stock, Redemption Date		Oct. 01, 2026
Variable Rate Commercial Paper Program [Member]
Derivative [Line Items]
DebtinstrumentsCarryingValueDisclosure			$ 20,000,000.0
Variable Rate Commercial Paper Program			20,000,000.0
Variable Rate Commercial Paper Program [Member] | Maximum [Member]
Derivative [Line Items]
Debt Renewal Period		30 days
Designated as Hedging Instrument
Derivative [Line Items]
Realized losses associated with terminated interest rate swaps that were designated as cash flow hedging instruments		$ 10,000,000.0
Designated as Hedging Instrument | Interest Expense
Derivative [Line Items]
Change in fair value of interest rate derivatives included in AOCI and expected to be reclassified in the next 12 months		1,600,000
Fair Value, Measurements, Recurring [Member]
Derivative [Line Items]
Embedded Derivative, Fair Value of Embedded Derivative Asset		17,800,000	13,400,000
Fixed Rate Debt [Member]
Derivative [Line Items]
Notes Payable Excluding Interest Rate Swaps and Cap Agreements		4,400,000,000	4,400,000,000
Notes Payable, Fair Value Disclosure		4,000,000,000.0	$ 3,900,000,000
Floating Rate Debt [Member]
Derivative [Line Items]
Notes Payable Excluding Interest Rate Swaps and Cap Agreements		$ 0

[1] The redemption price is the price at which the preferred stock is redeemable, at MAA’s option, for cash.

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Financial Instruments and Derivatives - Effect of Derivative Instruments on Consolidated Statement of Operations (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Derivative [Line Items]
Derivative Instruments, Gain (Loss) Recognized in Income, Net	$ 4,435	$ 11,896
Designated as Hedging Instrument
Derivative [Line Items]
Derivative Instrument, Gain (Loss) Reclassified from AOCI into Income, Effective Portion, Statement of Income or Comprehensive Income [Extensible Enumeration]	Interest Expense	Interest Expense
Amount of Gain or (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)	$ (278)	$ (279)
Not Designated as Hedging Instrument
Derivative [Line Items]
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Other Nonoperating Income (Expense)	Other Nonoperating Income (Expense)
Derivative Instruments, Gain (Loss) Recognized in Income, Net	$ 4,435	$ 11,896

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Shareholders' Equity of MAA - Additional Information (Details) - USD ($) $ / shares in Units, $ in Millions	1 Months Ended		3 Months Ended
	Jan. 31, 2023	Aug. 31, 2021	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Equity [Line Items]
Common stock, shares outstanding			116,600,756	115,337,466	115,480,336
Total common shares and operating partnership units outstanding			119,756,455	118,539,843
Settled share amount	$ 1.1
Forward price per share	$ 185.23
Net proceeds	$ 203.7
Equity Forward Sale Agreements [Member]
Equity [Line Items]
Stock Issued During Period, Shares, New Issues		1,100,000
Common stock, price per share		$ 190.56
Common stock settlement under agreement					0
At The Market Offering [Member]
Equity [Line Items]
Common stock shares sold			0	0
Remaining common stock to be issued			4,000,000.0
Maximum [Member] | At The Market Offering [Member]
Equity [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized			4,000,000.0
Noncontrolling Interest [Member]
Equity [Line Items]
Common Shares Issuable Upon Conversion Of Convertible Stock			3,155,699	3,202,377

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Shareholders' Equity of MAA - Schedule of Cumulative Redeemable Preferred Stock (Details) - $ / shares		3 Months Ended		12 Months Ended
		Mar. 31, 2023		Dec. 31, 2022
Equity [Line Items]
Preferred Stock, Shares Outstanding		867,846		867,846
Preferred Stock, Liquidation Preference Per Share		$ 50.00	[1]	$ 50.00
Preferred Stock, Redemption Date		Oct. 01, 2026
Preferred Stock, Redemption Price Per Share	[2]	$ 50.00
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

[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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Shareholders' Equity of MAA - Schedule of Cumulative Redeemable Preferred Stock (Parenthetical) (Details) $ in Millions	Mar. 31, 2023 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	1 Months Ended	3 Months Ended
	Jan. 31, 2023	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Schedule Of Capital Structure [Line Items]
Operating partnership units outstanding		119,756,455	118,539,843
General Partners' Capital Account, Units Outstanding		116,600,756	115,337,466
Limited Partners' Capital Account, Units Outstanding		3,155,699	3,202,377
Preferred Stock, Shares Outstanding		867,846		867,846
Settled share amount	$ 1.1
Net proceeds	$ 203.7
General partners capital account units issued	1,100,000
Redeemable Preferred Stock [Member]
Schedule Of Capital Structure [Line Items]
Preferred Stock, Shares Outstanding		867,846
Noncontrolling Interest [Member]
Schedule Of Capital Structure [Line Items]
Common Shares Issuable Upon Conversion Of Convertible Stock		3,155,699	3,202,377
Limited Partners' Capital Account		$ 476.6	$ 670.7
Redeemable Capital Shares Par Or Stated Value Per Share		$ 151.04	$ 209.45
M A A L P
Schedule Of Capital Structure [Line Items]
Limited Liability Company (LLC) or Limited Partnership (LP), Managing Member or General Partner, Ownership Interest		97.40%	97.30%

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Commitments and Contingencies - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Dec. 31, 2022
Loss Contingencies [Line Items]
Operating lease weighted average remaining lease term	33 years
Operating lease weighted average discount rate	4.50%
Loss contingency accrual	$ 9.8	$ 10.0
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 Right of Use Lease Obligations (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Loss Contingency [Abstract]
Right-of-use Leases, Future Minimum Payments Due, Next Twelve Months	$ 2,162
Right-of-use Leases, Future Minimum Payments, Due in Two Years	2,862
Right-of-use Leases, Future Minimum Payments, Due in Three Years	2,872
Right-of-use Leases, Future Minimum Payments, Due in Four Years	2,920
Right-of-use Leases, Future Minimum Payments, Due in Five Years	2,969
Right-of-use Leases, Future Minimum Payments, Due Thereafter	57,024
Right-of-use Leases, Future Minimum Payments Due	70,809
Net present value adjustments	(42,519)
Right-of-use Lease, Liability	$ 28,290	$ 28,700
Operating Lease, Liability, Statement of Financial Position [Extensible Enumeration]	Accrued Liabilities

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Segment Information - Additional Information (Details)	3 Months Ended
	Mar. 31, 2023 State Community Segment
Segment Reporting Information [Line Items]
Number of owned or owned interests of apartment communities | Community	290
Number of States in which Entity Operates	16
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
Excluding Construction in Progress [Member]
Segment Reporting Information [Line Items]
Number of States in which Entity Operates	15
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
	Mar. 31, 2023	Mar. 31, 2022
Segment Information
Total operating revenues	$ 529,033	$ 476,078
Net Operating Income	346,230	306,658
Depreciation and amortization	(138,501)	(133,738)
Property management expenses	(17,928)	(16,537)
General and administrative expenses	(15,923)	(16,323)
Interest expense	(37,281)	(39,121)
Gain (loss) on sale of depreciable real estate assets	15	(1)
Gain on sale of non-depreciable real estate assets	54	23
Other non-operating (expense) income	3,467	10,795
Income tax (expense) benefit	(944)	1,442
Gain (loss) from real estate joint ventures	385	379
Net loss attributable to noncontrolling interests	(3,664)	(2,775)
Distributions to MAALP Series I preferred unitholders	(922)	(922)
Net income available for MAA common shareholders	134,988	109,880
Same Store [Member]
Segment Information
Revenue from Contract with Customer, Including Assessed Tax	497,250	447,599
Other operating income expense net	2,760	2,724
Total operating revenues	500,010	450,323
Net Operating Income	328,940	292,436
Non-Same Store and Other [Member]
Segment Information
Revenue from Contract with Customer, Including Assessed Tax	28,843	25,516
Other operating income expense net	180	239
Total operating revenues	29,023	25,755
Net Operating Income	$ 17,290	$ 14,222

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Segment Information - Assets for Reportable Segment (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Segment Reporting Asset Reconciling Item [Line Items]
Total assets	$ 11,352,311	$ 11,241,165
Same Store [Member]
Segment Reporting Asset Reconciling Item [Line Items]
Total assets	9,650,594	9,697,889
Non-Same Store and Other [Member]
Segment Reporting Asset Reconciling Item [Line Items]
Total assets	1,422,046	1,370,721
Corporate Assets [Member]
Segment Reporting Asset Reconciling Item [Line Items]
Total assets	$ 279,671	$ 172,555

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Real Estate Acquisitions and Dispositions - Additional Information (Details) $ in Millions	3 Months Ended
	Mar. 31, 2023 USD ($) a
Orlando
Business Acquisition [Line Items]
Acquisition cost | $	$ 12
Orlando | Land
Business Acquisition [Line Items]
Area of land | a	6
Gulf Shores
Business Acquisition [Line Items]
Gross proceeds from disposition | $	$ 3
Gulf Shores | Land
Business Acquisition [Line Items]
Area of land | a	21

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Real Estate Acquisitions and Dispositions - Schedule of Real Estate Asset Acquisitions and Dispositions (Details)	Mar. 31, 2023 a
Orlando F L [Member] | Land
Acquisitionsand Disposals [Line Items]
Area of land	6