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Class A OP Units [Member] Segments Segments [Domain] Dividends, Preferred Stock Dividends, Preferred Stock, Total Dividends on preferred stock Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Preferred Stock, Shares Issued Preferred Stock, Shares Issued Preferred Stock, Shares Issued, Total Balance Sheet Location Statement of Financial Position Location, Balance [Domain] Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract] Non-cash transactions: Common stock repurchased, weighted average price per share Shares Acquired, Average Cost Per Share Entity Current Reporting Status Entity Current Reporting Status Common stock, shares authorized Common Stock, Shares Authorized Total property operating expenses Property Operating Expenses Property operating expenses. Percentage Of Rental Revenue From Leasing Of Apartment Homes Percentage Of Rental Revenue And Other Income From Leasing Of Apartment Homes Percentage of our total property revenues and total non-property income from leasing of apartment homes, excluding income on deferred compensation plans. Earnings per common share - basic: Earnings Per Share, Basic [Abstract] Product and Service Product and Service [Axis] Document Fiscal Period Focus Document Fiscal Period Focus Operating Lease, Right-of-Use Asset, Statement of Financial Position Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Debt Instrument, Interest Rate, Stated Percentage Debt Instrument, Interest Rate, Stated Percentage Entity Shell Company Entity Shell Company Legal Entity of Counterparty, Type [Axis] Redeemable stock, shares issued and outstanding Temporary Equity, Shares Outstanding Cash and cash equivalents Cash and cash equivalents Cash and Cash Equivalent Cash and Cash Equivalents, at Carrying Value, Total Cash and Cash Equivalents, at Carrying Value, Beginning Balance Disclosure Revenues And Noi For Reportable Segment [Abstract] Disclosure - Revenues and NOI for Reportable Segment [Abstract] Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders Distributions on noncontrolling interests units Common stock, shares issued Common Stock, Shares, Issued Common Stock, Shares, Issued, Total Asset Class [Domain] Statement [Table] Statement [Table] Retail [Member] Retail [Member] Total common shares and operating partnership units outstanding Common Shares And Operating Partnership Units Outstanding Common Shares and Operating Partnership Units, Outstanding Partners' Capital Notes [Abstract] Limited Partners' Capital Account Limited Partners' Capital Account Limited Partners' Capital Account, Total Statement [Line Items] Statement [Line Items] Installment Payments Installment payments. Installment payments Entity Filer Category Entity Filer Category Common Stock, Value, Outstanding Common stock Common stock, value, outstanding Apartment Communities [Member] Apartment Building [Member] Earnings Per Share Disclosure [Table] Earnings Per Share Disclosure [Table] Earnings Per Share Disclosure [Table] Houston, Texas[Member] Houston, Texas. Houston, Texas Unsecured Senior Notes Due June Two Thousand Twenty Seven [Member] Unsecured senior notes due june two thousand twenty seven. Unsecured Senior Notes Due June 2027 [Member] Total liabilities and equity Liabilities and Equity Debt Instrument [Line Items] Debt Instrument [Line Items] Long-Lived Tangible Asset Long-Lived Tangible Asset [Axis] M A A L P Capital [Abstract] MAALP Capital [Abstract] Schedule Of Real Estate Properties [Table] Real Estate Property, Ownership [Table] Marketable Equity Securities [Member] Marketable Equity Securities [Member] Marketable equity securities. Proceeds from Issuance of Debt Proceeds from Issuance of Debt Derivative [Line Items] Derivative [Line Items] Basis of Presentation and Principles of Consolidation Basis Of Presentation And Principles Of Consolidation Policy Policy [Text Block] Basis of presentation and principles of consolidation, policy. Income Taxes Paid Income taxes paid Geographical Geographical [Domain] $1 billion unsecured revolving credit facility [Member] A1 Billion Unsecured Revolving Credit Faciltiy [Member] $1 billion unsecured revolving credit faciltiy [Member] Office Operations Expenses Office Operations Expenses Office operations Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Table Text Block] Property Revenues and NOI for Reportable Segment Timothy Argo. Timothy Argo [Member] Timothy Argo [Member] Debt issuance costs Debt Issuance Costs, Net Debt Issuance Costs, Net, Total Issuance of units Units Issued During Period Value New Issues Net Units Issued during period value new issues net. Contributions from non controlling interest. Contributions From Non Controlling Interest Contributions from noncontrolling interest Real Estate [Table] Related Party [Member] Related Party [Member] Conversion of OP Units to shares of common stock Conversion of Stock, Amount Converted Income from continuing operations before real estate joint venture activity Income Loss From Continuing Operations Before Equity Method Investments Income (Loss) from Continuing Operations before Equity Method Investments Amber Fairbanks [Member] Amber Fairbanks [Member] Schedule of Computation of Earnings Per Share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Development Properties [Member] Development Properties [Member] Development Properties [Member] Earnings per common share - basic Net income available for MAA common shareholders Earnings Per Share, Basic Earnings Per Share, Basic, Total Building Repair and Maintenance Expenses Building repair and maintenance expenses Building repair and maintenance Weighted average common units - basic Weighted average common units - basic Weighted Average Number of Units Outstanding Basic Weighted average number of units outstanding basic. Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property Gain on sale of depreciable real estate assets Effect On Retained Earnings Accumulated Deficit Due To Fair Value Option And Measurement Fair value option and measurement. Redeemable stock fair market value adjustment Redeemable units fair market value adjustment Revolving Credit Facility [Member] Revolving Credit Facility [Member] Multifamily [Member] Adjustments to reconcile net income to net cash provided by operating activities: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract] Hedging Designation Hedging Designation [Domain] Notes Payable, Fair Value Disclosure Notes Payable, Fair Value Disclosure Earnings per common unit - basic Earnings per Unit Basic Earnings per unit basic. Accounting Standards Update Accounting Standards Update [Axis] Notes To Financial Statements [Abstract] Notes to Financial Statements [Abstract] Realized losses associated with terminated interest rate swaps that were designated as cash flow hedging instruments Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, Tax Distribution on common units declared and accrued. Distribution on Common Units Declared And Accrued Distributions on common shares/units declared and accrued Entity Small Business Entity Small Business Hedging Designation Hedging Designation [Axis] Melanie Carpenter [Member] Melanie Carpenter. Melanie Carpenter [Member] Accounting Standards Update 2016-02 [Member] Accounting Standards Update 2016-02 [Member] Preferred Stock [Member] Preferred Stock [Member] Preferred Stock, Value, Outstanding Preferred stock, value, outstanding Units Repurchased And Retired During Period Value Units Repurchased and Retired During Period, Value. Exercise of unit options Units repurchased and retired Post Massachusetts Avenue [Member] Post Massachusetts Avenue [Member] Post Massachusetts Avenue [Member] Effect of dilutive securities Weighted Average Number of Shares Outstanding, Diluted, Adjustment Weighted Average Number Diluted Shares Outstanding Adjustment, Total Debt Instrument, Payment Terms Debt Instrument, Payment Terms Amendment Flag Amendment Flag Product and Service Product and Service [Domain] Loss Contingencies [Line Items] Loss Contingencies [Line Items] Earnings per common unit - diluted Earnings per Unit Diluted Earnings per unit diluted. Payment of Aggregate Settlement Fund Payment of aggregate settlement fund. Payment of aggregate settlement Liabilities and equity Liabilities and Equity [Abstract] Entity Address, Postal Zip Code Entity Address, Postal Zip Code Net cash provided by operating activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation Non Controlling Interests Dividents Per Share Declared Dividends Declared Per Share of Non Controlling Interests (in dollars per share) Non Controlling Interests Dividents Per Share Declared Mid America Apartment Communities Inc. Shareholders Equity [Member] Mid America Apartment Communities Inc Shareholders Equity [Member] Mid-America Apartment Communities, Inc. Shareholders' Equity. Common Stock [Member] Common Stock [Member] Common Stock Long-Term Debt, Maturity, Year One Long-Term Debt, Maturity, Year One Lessee, Operating Lease, Liability, to be Paid, Year Three Right-of-use Leases, Future Minimum Payments, Due in Three Years 2029 Other operating income expense net Other Operating Income (Expense), Net Proceeds from (Payments to) Noncontrolling Interests Proceeds from (Payments to) Noncontrolling Interests Proceeds from (Payments to) Noncontrolling Interests, Total Amortization of debt issuance costs, discounts and premiums Amortization of Debt Discount (Premium) Secured Debt Secured Debt, Total Secured notes payable, net Debt Instrument, Interest Rate, Effective Percentage Debt Instrument, Interest Rate, Effective Percentage Entity Address, Address Line One Entity Address, Address Line One Gain Loss From Unconsolidated Limited Partnerships Net of Distributions Received Gain loss from unconsolidated limited partnerships net of distributions received. Gain on investments Earnings Per Share [Abstract] Disclosure M A A L P Capital Summary Of Changes In Total Capital And Its Components Parenthetical Details [Abstract] Disclosure M A A L P Capital Summary Of Changes In Total Capital And Its Components Parenthetical Details [Abstract] Noncontrolling Interests - Consolidated Real Estate Entities [Member] Noncontrolling Interests Consolidated Real Estate Entities [Member] Noncontrolling Interests Consolidated Real Estate Entities. Loss Contingency Accrual Loss Contingency Accrual, Beginning Balance Loss Contingency Accrual, Ending Balance Loss contingency accrual Supplemental Cash Flow Information [Abstract] Supplemental information: Buildings and improvements and other Buildings Improvements And Other Amount before accumulated depreciation of building structures held for productive use including addition, improvement, or renovation to the structure, including, but not limited to, interior masonry, interior flooring, electrical, and plumbing, equipment commonly used in offices and stores that have no permanent connection to the structure of a building or utilities. Examples include, but are not limited to, desks, chairs, tables, and bookcases. Also includes amount of investment in certain other real estate investments not specifically identified elsewhere in the existing taxonomy. Lease expiration year. Lease expiration year Lease Expiration Year Loss Contingency [Abstract] Balance Sheet Location Statement of Financial Position Location, Balance [Axis] Investment Type Investment Type [Axis] Operating Lease, Right-of-Use Asset Operating Lease, Right-of-Use Asset Net Income (Loss) Attributable to Noncontrolling Interest Net Income (Loss) Attributable to Noncontrolling Interest, Total Net loss attributable to noncontrolling interests Net income (loss) attributable to noncontrolling interests Net loss attributable to noncontrolling interests Net income attributable to noncontrolling interests Land Land Land, Total Document Type Document Type Real Estate Investment Property, Net Real Estate Investment Property, Net Entity Central Index Key Entity Central Index Key Investment Expense Investment Income, Investment Expense Net income attributable to noncontrolling interests basic. Net Income Attributable to Noncontrolling Interests Basic Net income attributable to noncontrolling interests Net income available for MAALP common unitholders, adjusted Net income available for MAALP common unitholders, adjusted Net income available for MAALP common unitholders, adjusted Adjusted Income Loss from Continuing Operations Available for Common Unitholders Diluted Adjusted income loss from continuing operations available for common unitholders diluted. Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation Net (decrease) increase in cash, cash equivalents and restricted cash Subsequent Event Type [Domain] Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Purchases of real estate and other assets Payments To Acquire Real Estate And Other Assets The cash outflow from the acquisition of a piece of land, anything permanently fixed to it, including buildings, structures, and other related assets such as intangibles (in-place-leases) on it and so forth; includes real estate and other assets intended to generate income for the owner; excludes real estate acquired for use by the owner. Summary of Changes in Total Equity and its Components Shareholders Equity Table [Text Block] Shareholders' Equity [Table Text Block] Cumulative Preferred Stock [Member] Cumulative Preferred Stock [Member] Common stock, par value per share Common Stock, Par or Stated Value Per Share Accounting Standards Update Accounting Standards Update [Domain] General Partners' Capital Account, Units Outstanding General Partners' Capital Account, Units Outstanding Liabilities: Liabilities [Abstract] Base Rate [Member] Excluding Construction in Progress Excluding Construction in Progress [Member] Excluding Construction in Progress [Member] Net Loss Or Income Per Unit Disclosure [Table] Net Loss Or Income Per Unit Disclosure [Table] Net Loss or Income Per Unit Disclosure [Table] Debt Information Debt Information [Axis] Debt Information [Axis] Debt Disclosure [Abstract] Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax, Total Other comprehensive income - derivative instruments Derivative [Table] Derivative [Table] Marketable Securities, Total Marketable Securities Marketable equity securities Payments for legal settlements Payments for Legal Settlements Ownership Ownership [Domain] Current Fiscal Year End Date Current Fiscal Year End Date Debt Instrument [Table] Schedule of Long-Term Debt Instruments [Table] Acquisition of noncontrolling interest Payments to Noncontrolling Interests Investment in real estate joint venture Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures, Total Commitments and Contingencies Legal Matters and Contingencies [Text Block] Document Quarterly Report Document Quarterly Report Property management expenses Other Cost and Expense, Operating Other Cost and Expense, Operating, Total Property management expenses Litigation Case [Domain] Entity Address, State or Province Entity Address, State or Province Preferred Stock, Shares Outstanding Preferred Stock, Shares Outstanding Preferred Stock, Shares Outstanding, Beginning Balance Preferred Stock, Shares Outstanding, Ending Balance Comprehensive Income (Loss), Net of Tax, Attributable to Parent Comprehensive income attributable to MAA Limited Partnership Units [Member] Limited Partnership Units [Member] Limited Partnership Units [Member] Geographical Geographical [Axis] Operating Income (Loss) Before Depreciation Operating income (loss) before depreciation. Net operating income (loss) Partner Capital Components Partner Capital Components [Domain] Non-Same Store and Other [Member] Non Same Store And Other [Member] Non Same Store and Other [Member] A. Clay Holder[Member] A. Clay Holder. Notes Payable Excluding Interest Rate Swaps and Cap Agreements Notes Payable Excluding Interest Rate Swaps And Cap Agreements Notes Payable Excluding Interest Rate Swaps and Cap Agreements Interest capitalized Interest Costs Capitalized Exercise of stock options Stock Issued During Period, Value, Stock Options Exercised Preferred Stock, Redemption Price Per Share Preferred Stock, Redemption Price Per Share Debt Instrument, Unamortized Discount (Premium), Net, Total Debt Instrument, Unamortized Discount (Premium), Net Debt issuance costs, discounts and premiums Costs Incurred To Date [Member] Costs Incurred to Date [Member] Costs Incurred To Date [Member] Other comprehensive income: Other Comprehensive Income (Loss), Net of Tax [Abstract] Fixed Rate Debt [Member] Fixed Rate Debt [Member] Fixed Rate Debt [Member] Subsequent Event [Member] Marketable Securities, Policy [Policy Text Block] Marketable Equity Securities Noncontrolling Interests - Operating Partnership [Member] Noncontrolling Interest Operating Partnership [Member] Noncontrolling Interest Operating Partnership. Unsecured Debt Unsecured debt Unsecured Debt, Total Unsecured notes payable, net Antidilutive Securities Antidilutive Securities [Axis] Basic Earnings Per Unit Net income available for MAALP common unitholders Basic earnings per unit. Rule 10B51 Trading Plan One [Member] Rule 10B51 Trading Plan One [Member] Rule10B51 Trading Plan One [Member] Shares issued in exchange for redeemable stock Stock Issued in Exchange for Redeemable Stock Stock Issued In Exchange For Redeemable Stock AOCI Attributable to Parent [Member] Accumulated Other Comprehensive Loss [Member] Limited Liability Company (LLC) or Limited Partnership (LP), Managing Member or General Partner, Ownership Interest Limited Liability Company (LLC) or Limited Partnership (LP), Managing Member or General Partner, Ownership Interest Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Unsecured Debt [Member] Unsecured Debt [Member] Contract Maturity Debt Instrument, Maturity Date Debt Instrument, Maturity date Minimum [Member] Minimum [Member] Real Estate [Member] Real Estate [Member] Reconciliation Of Operating Profit Loss From Segments To Consolidated [Table] Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Table] Maturing In January Two Thousand And Thirty Three [Member] Maturing in january two thousand and thirty three. Maturing in January 2033 Ending Balance Beginning Balance Partners' Capital Partners' Capital, Total Unrealized Gain (Loss) on Investments Unrealized gains (losses) Shares repurchased and retired Stock Repurchased and Retired During Period, Value Operating Partnership capital: Banking Regulation, Total Capital [Abstract] Leases Lessee, Leases [Policy Text Block] Operating Lease, Liability Operating Lease, Liability Right-of-use Lease, Liability Right-of-use lease liabilities Debt instrument, Basis spread on variable rate Debt Instrument, Basis Spread on Variable Rate Preferred Stock, Dividend Rate, Percentage Preferred Stock, Dividend Rate, Percentage Scenario Forecast [Member] Forecast [Member] Segment Reporting Asset Reconciling Item [Line Items] Segment Reporting, Asset Reconciling Item [Line Items] Units issued in exchange for redeemable stock Units Issued in Exchange for Redeemable Stock Units Issued in Exchange for Redeemable Stock. Variable Interest Entity Primary Beneficiary [Member] Variable Interest Entity, Primary Beneficiary [Member] Kansas City , Kansas [Member] Kansas City , Kansas. Kansas City Contributions to affiliates Payments to Acquire Equity Method Investments Net income Net income Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Net income (loss) Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Other Item Net change in other operating accounts and operating activities Assets for Reportable Segment Reconciliation of Assets from Segment to Consolidated [Table Text Block] Long-term Debt, Type Long-Term Debt, Type [Domain] Loss Contingencies [Table] Loss Contingencies [Table] Weighted average common shares - basic Weighted Average Number of Shares Outstanding, Basic Weighted Average Number of Shares Outstanding, Basic, Total Scenario Scenario [Axis] Capital Disclosure [Table] Capital Disclosure [Table] Capital Disclosure [Table] Document Information [Line Items] Document Information [Line Items] Adjustment for limited partners’ capital at redemption value Adjustment For Limited Partners Capital At Redemption Value Adjustment for limited partners' capital at redemption value. Limited Partnership [Member] Limited partnership. Limited Partnership [Member] Undeveloped land Land Available for Development Segments Segments [Axis] Public Income Notes [Member] Public Income Notes [Member] Long-Lived Tangible Asset Long-Lived Tangible Asset [Domain] Marketing Marketing Expense MAALP Capital Consolidated Statements Of Changes In Capital [Text Block] Consolidated Statements of Changes in Capital [Text Block] Redeemable Capital Shares Par Or Stated Value Per Share Redeemable Capital Shares Par Or Stated Value Per Share Redeemable Capital Shares, Par or Stated Value Per Share Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, Tax Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net, Total Amount of Gain or (Loss) Reclassified from Accumulated OCI into Income (Effective Portion) APIC, Share-Based Payment Arrangement, Increase for Cost Recognition APIC, Share-Based Payment Arrangement, Increase for Cost Recognition, Total Amortization of unearned compensation Variable Rate [Domain] Stockholders' Equity Attributable to Parent, Beginning Balance Stockholders' Equity Attributable to Parent, Ending Balance Equity, Attributable to Parent Total MAA shareholders' equity Preferred Stock, Par or Stated Value Per Share Preferred Stock, Par or Stated Value Per Share Amortization of unearned compensation Amortization Unearned Compensation Amortization of unearned compensation Disclosure Notes Payable Additional Information [Abstract] Disclosure - Notes Payable - Additional Information [Abstract] Real Estate Tax Expense Real estate taxes Arlington, Virginia Arlington, Virginia [Member] Arlington, Virginia. Partner Capital Components Partner Capital Components [Axis] General Partners' Capital Account General Partners' Capital Account General Partners' Capital Account, Total Consolidation And Basis Of Presentation And Significant Accounting Policies [Abstract] Consolidation and Basis of Presentation and Significant Accounting Policies [Abstract] Unvested restricted units (allocation of earnings) Income From Continuing Operations Allocated To Unvested Restricted Shares Income from continuing operations allocated to unvested restricted shares Additional 2033 Notes Additional Two Thousand and Thirty Three Notes [Member] Additional two thousand and thirty three notes. Percentage of ownership interests of all consolidated subsidiaries (percent) Percentage Of Ownership Interests Percentage Of Ownership Interests Payments to Acquire Residential Real Estate Acquisition cost Embedded Derivative, Fair Value of Embedded Derivative Asset Embedded Derivative, Fair Value of Embedded Derivative Asset Entity Address, Address Line Two Entity Address, Address Line Two Financial Instruments and Derivatives Fair Value Disclosures [Text Block] Proceeds from real estate asset dispositions. Proceeds From Real Estate Asset Dispositions Proceeds from real estate asset dispositions Noncontrolling Interests-Consolidated Real Estate Entities [Member] Noncontrolling Interest [Member] Noncontrolling Interest [Member] Debt Instrument, Name Debt Instrument, Name [Domain] Gain (loss) from real estate joint ventures Income from real estate joint venture Income (Loss) from Equity Method Investments Income (Loss) from Equity Method Investments, Total Interest expense Interest expense Interest Expense, Operating and Nonoperating Interest Expense, Total Entity [Domain] Redeemable common stock Temporary Equity, Including Noncontrolling Interest Temporary Equity, Carrying Amount, Including Portion Attributable to Noncontrolling Interests, Total Temporary Equity, Carrying Amount, Including Portion Attributable to Noncontrolling Interests, Beginning Balance Temporary Equity, Carrying Amount, Including Portion Attributable to Noncontrolling Interests, Ending Balance Credit Facility [Axis] Credit Facility Related and Nonrelated Parties [Axis] Entity Address, City or Town Entity Address, City or Town Stock Repurchased During Period, Shares Number of shares repurchased Unvested restricted shares (allocation of earnings) Undistributed Earnings, Basic, Total Undistributed Earnings, Basic Number of reportable segments Number of Reportable Segments Security Exchange Name Security Exchange Name Credit Facility Credit Facility [Domain] Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration] Schedule Of Capital Structure [Line Items] Schedule Of Capital Structure [Line Items] [Line Items] for Schedule of Capital Structure [Table] Distributions Distributions Distributions Increase (Decrease) in Partners' Capital [Roll Forward] Increase (Decrease) in Partners' Capital [Roll Forward] Real Estate [Abstract] Antidilutive Securities, Name Antidilutive Securities, Name [Domain] Period properties owned and stabilized Period Properties Owned And Stabilized Period properties owned and stabilized Cash, cash equivalents and restricted cash, beginning of period Cash, cash equivalents and restricted cash, end of period Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Total cash, cash equivalents and restricted cash Interest paid Interest Paid, Excluding Capitalized Interest, Operating Activity Statistical Measurement Statistical Measurement [Domain] Accrued construction in progress Construction in Progress Expenditures Incurred but Not yet Paid Summary of Changes in Total Capital and its Components Partners Capital Table [Text Block] Partners' Capital [Table Text Block] Document Period End Date Document Period End Date Gain (Loss) on Disposition of Property Plant Equipment Gain (Loss) on Disposition of Property Plant Equipment, Total Gain (loss) on sale of depreciable real estate assets (Gain) loss on sale of depreciable real estate assets Gain (loss) on sale of depreciable real estate assets Adjusted Income Loss From Continuing Operations Available For Common Shareholders Basic Adjusted income (loss) from continuing operations available for common shareholders, basic. Net income available for MAA common shareholders, adjusted Statement of Financial Position [Abstract] Noncontrolling Interests Noncontrolling Interests Policy [Text Block] Noncontrolling Interests Policy Text Block. Personnel Expenses Personnel expenses. Personnel Disclosure Debt Structure [Abstract] Disclosure - Debt Structure [Abstract] Revenue Recognition Revenue [Policy Text Block] Earnings Per O P Unitof M A A L P [Abstract] Earnings Per OP Unit of MAALP [Abstract] Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation [Abstract] Reconciliation of cash, cash equivalents and restricted cash at period end: Class of Stock Class of Stock [Axis] Segment Reporting Reconciling Item For Operating Profit Loss From Segment To Consolidated [Line Items] Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] Limited Partners' Capital Account, Units Outstanding Limited Partners' Capital Account, Units Outstanding Occupancy level for Stabilized Communities Occupancy Level For Stabilized Communities Occupancy level for stabilized communities. Not Designated as Hedging Instrument Not Designated as Hedging Instrument [Member] Total liabilities Consolidated liabilities Liabilities Expenses: Operating Costs and Expenses [Abstract] Real Estate Assets Net Real estate assets, net Real Estate Assets, Net Earnings Per Share Disclosure [Line Items] Earnings Per Share Disclosure [Line Items] Earnings Per Share Disclosure [Line Items] Investments in Unconsolidated Affiliates Equity Method Investments [Policy Text Block] Real Estate Properties Real Estate Properties [Domain] Lessee, Operating Lease, Liability, to be Paid, Year Two Right-of-use Leases, Future Minimum Payments, Due in Two Years 2028 Restricted cash Restricted cash Restricted Cash Restricted Cash, Total Segment Reporting, Disclosure of Entity's Reportable Segments [Abstract] Variable Rate [Axis] Line of Credit Facility, Maximum Amount Outstanding During Period Outstanding Amount Weighted average common shares - diluted Weighted Average Number of Shares Outstanding, Diluted Entity File Number Securities Act File Number Payments of Ordinary Dividends, Common Stock Distributions paid on common units Other assets Other Assets Other Assets, Total Derivative Instruments, Gain (Loss) [Table Text Block] Effect of Derivative Instruments on Condensed Consolidated Statement of Operations Cover [Abstract] Variable Rate Commercial Paper Program [Member] Variable Rate Commercial Paper Program [Member] Variable Rate Commercial Paper Program [Member] Investments Investments [Domain] Derivative Instruments, Gain Recognized in Income, Net Derivative, Gain (Loss) on Derivative, Net Derivative, Gain (Loss) on Derivative, Net, Total Derivative Instruments, Gain (Loss) Recognized in Income, Net Loss (gain) on embedded derivative in preferred shares Income before income tax expense Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest Debt Information Debt Information [Domain] Debt Information [Domain] Scenario Scenario [Domain] Consolidated Statements Of Comprehensive Income [Abstract] Consolidated Statements of Comprehensive Income [Abstract] Sale of Stock Sale of Stock [Domain] Segment Information Segment Reporting Disclosure [Text Block] General and administrative expenses General and administrative expenses General and Administrative Expense General and Administrative Expense, Total Revenue from Contract with Customer, Including Assessed Tax Revenue from Contract with Customer, Including Assessed Tax Number of units under development community Number Of Units Under Development Community Property Held for Development Number of units under third party's development community Net income available for MAALP common unitholders, adjusted Net income available for MAALP common unitholders, adjusted Adjusted Income Loss from Continuing Operations Available for Common Unitholders Basic Adjusted income loss from continuing operations available for common unitholders basic. Number of Real Estate Properties Number of owned or owned interests of apartment communities Number of Real Estate Properties Net income available for MAALP common unitholders Diluted Earnings Per Unit Diluted earnings per unit. Schedule of Right-of-Use Lease Obligations Lessee, Operating Lease, Liability, to be Paid, Maturity [Table Text Block] Derivative Instruments, Gain (Loss) [Table] Derivative Instruments Gain Loss By Hedging Relationship By Income Statement Location By Derivative Instrument Risk [Table] Ownership Ownership [Axis] Proceeds from Sale of Real Estate Gross proceeds from disposition Corporate Assets [Member] Corporate Segment [Member] Organization, Consolidation and Presentation of Financial Statements Disclosure and Significant Accounting Policies [Text Block] Organization and Summary of Significant Accounting Policies Common stock, shares outstanding Common Stock, Shares, Outstanding Common Stock, Shares, Outstanding, Beginning Balance Common Stock, Shares, Outstanding, Ending Balance Depreciation and amortization Depreciation, Depletion and Amortization Depreciation, Depletion and Amortization, Total Limited Partnerships [Member] Limited Partnerships [Member] Limited Partnership [Member] Document Transition Report Document Transition Report Net Proceeds From Insurance Recoveries Net proceeds from insurance recoveries. Net proceeds from insurance recoveries Operating Expenses Total property operating expenses, excluding depreciation and amortization Payments for Repurchase of Common Stock Consideration per share Repurchase of common shares Total comprehensive income Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Statement of Cash Flows [Abstract] Robert J DelPriore [Member] Robert J DelPriore. Robert J. DelPriore [Member] Issuance and registration of common shares Stock Issued During Period, Value, New Issues Preferred Stock, Liquidation Preference, Value Preferred Stock, Liquidation Preference, Value Reconciliation Of Assets From Segment To Consolidated [Table] Reconciliation of Assets from Segment to Consolidated [Table] Shareholders' Equity of MAA Equity [Text Block] Earnings per Common Share of MAA Earnings Per Share [Text Block] Number of acquired multifamily apartment communities Number of Acquired Multifamily Apartment Communities Number of acquired multifamily apartment communities. Net income Partner Type of Partners' Capital Account, Name [Domain] Partner Type of Partners' Capital Account, Name MAA Equity Consolidated Statements Of Equity [Text Block] Consolidated Statements of Equity [Text Block] Partners' Capital of MAALP Partners' Capital Notes Disclosure [Text Block] Dividends, Preferred Stock, Cash Distributions to preferred unitholders Earnings per OP Unit of MAALP Earnings Per Unit [Text Block] Earnings per unit text block. Proceeds from (Payment for) Other Financing Activity Net change in other financing activities Payments of Ordinary Dividends, Noncontrolling Interest Distributions to noncontrolling interests Preferred Stock, Dividend Rate, Per-Dollar-Amount Preferred Stock, Dividend Rate, Per-Dollar-Amount Assets Assets [Abstract] Partner Type Partner Type [Axis] Number of land parcels disposed Number of Disposed Multifamily Apartment Communities or Land Parcels Number of disposed multifamily apartment communities or land parcels. Nashville, Tennessee [Member] Nashville, Tennessee. Nashville Real estate taxes and insurance Real Estate Taxes and Insurance Real Estate Taxes and Insurance, Total Document Fiscal Year Focus Document Fiscal Year Focus Less: Accumulated depreciation Real Estate Investment Property, Accumulated Depreciation Other Assets [Member] Other Assets [Member] Charleston [Member] Charleston. Charleston Cash flows from investing activities: Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract] Distributions paid on preferred units Payments of Ordinary Dividends, Preferred Stock and Preference Stock Real Estate Investment Property, at Cost Real Estate Investment Property, at Cost At The Market Offering [Member] At The Market Offering [Member] At the market offering. Fair value Measurements Fair Value Measurement, Policy [Policy Text Block] Asset, Held-for-Sale, Not Part of Disposal Group Asset, Held-for-Sale, Not Part of Disposal Group, Total Assets held for sale Fair Value Disclosures [Abstract] Real Estate Properties [Line Items] Real Estate Properties [Line Items] Lessee, Operating Lease, Liability, to be Paid, Year One 2027 Real Estate Property Ownership Real Estate Property Ownership [Axis] Net Income (Loss) Available to Common Stockholders, Basic Net income available for MAALP common unitholders Net income attributable to noncontrolling interests Net income available for MAA common shareholders Schedule of Diluted Earnings per Common Unit Schedule of Earnings Per Unit [Table Text Block] Tabular disclosure of earnings per unit of an entity. Line of Credit Facility, Amount Outstanding Long-Term Line of Credit Long-term Line of Credit, Total Debt Instrument Debt Instrument [Axis] Sale of Stock Sale of Stock [Axis] SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate, Beginning Balance SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate, Ending Balance Total operating revenues Rental and other property revenues Revenues Variable Rate Term Loan [Member] Variable rate term loan. Variable rate term loan [Member] Net cash used in investing activities Cash Provided by (Used in) Investing Activity, Including Discontinued Operation Title of 12(b) Security Title of 12(b) Security Schedule Of Segment Reporting Information By Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Shares issued in exchange for common units Stock Issued During Period, Value, Conversion of Units Investment Income Investment Income, Net, Total Investment Income, Net Related and Nonrelated Parties [Domain] Net income available for MAA common shareholders, adjusted Adjusted Income Loss From Continuing Operations Available For Common Shareholders Diluted Adjusted income (loss) from continuing operations available for common shareholders, diluted. Interest Expense Interest Expense [Member] M A A Equity [Abstract] MAA Equity. Lessee, Operating Lease, Liability, to be Paid, Remainder of Fiscal Year 2026 Document Information [Table] Document Information [Table] Consolidated Entities [Axis] Legal Entity [Axis] Letters of Credit Outstanding, Amount Letters of Credit Outstanding, Amount Additional Paid-in Capital [Member] Additional Paid-in Capital [Member] Increase (Decrease) in Accrued Liabilities and Other Operating Liabilities Change in accrued expenses and other liabilities Measurement Frequency Measurement Frequency [Domain] Insurance General Insurance Expense Income Statement Location Statement of Income Location, Balance [Axis] Trading Symbol Trading Symbol Proceeds from notes payable Proceeds from Notes Payable Proceeds from Notes Payable, Total Net (payments of) proceeds from commercial paper Proceeds from (Repayments of) Commercial Paper Proceeds from (Repayments of) Commercial Paper, Total Subsequent Event Type [Axis] Cash flows from financing activities: Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract] Fair Value, Measurements, Recurring [Member] Fair Value, Recurring [Member] Total minimum lease payments Lessee, Operating Lease, Liability, to be Paid Preferred Stock, Liquidation Preference Per Share Preferred Stock, Liquidation Preference Per Share Net present value adjustments Lessee, Operating Lease, Liability, Undiscounted Excess Amount Distribution Made to Limited Partner, Distributions Declared, Per Unit Distribution Made to Limited Partner, Distributions Declared, Per Unit Earnings Per Common Share Of M A A [Abstract] Earnings per common share of MAA. Number of shares remaining for issuance. Number Of Shares Remaining For Issuance Remaining common stock to be issued Equity Components Equity Components [Axis] Equity Component Equity Component [Domain] Asset Class [Axis] Operating Lease, Liability, Statement of Financial Position [Extensible Enumeration] Operating Lease, Liability, Statement of Financial Position [Extensible Enumeration] Redeemable Preferred Stock [Member] Redeemable Preferred Stock [Member] Preferred Partner [Member] Depreciation and amortization Depreciation and amortization Depreciation, Depletion and Amortization, Nonproduction Depreciation, Depletion and Amortization, Nonproduction, Total AOCI Attributable to Noncontrolling Interest [Member] AOCI Attributable to Noncontrolling Interest [Member] Maximum [Member] Maximum [Member] Designated as Hedging Instrument Designated as Hedging Instrument [Member] Schedule of Cumulative Redeemable Preferred Stock Schedule of Stock by Class [Table Text Block] Statistical Measurement Statistical Measurement [Axis] Debt Renewal Period Debt Renewal Period Debt Renewal Period Raleigh, NC [Member] Raleigh, NC [Member] Raleigh Nc Number of States in which Entity Operates Number of States in which Entity Operates Debt instrument fair value disclosure. Debt Instrument Fair Value Disclosure Variable Rate Commercial Paper Program Net Income (Loss) Allocated to General Partners Net Income (loss) Allocated to General Partners Line of Credit Facility, Expiration Date Commitment Expiration Average daily borrowings outstanding under commercial paper program Average Daily Borrowings Outstanding Under The Commercial Paper Program Average daily borrowings outstanding under the commercial paper program. Total equity Equity, Including Portion Attributable to Noncontrolling Interest Total equity Ending Balance Beginning Balance Secured Overnight Financing Rate (SOFR) [Member] Equity Disclosure [Table] Equity Disclosure [Table] Equity Disclosure [Table] Legal Entity Type of Counterparty [Domain] Distributions to MAALP Series I preferred unitholders Dividends to MAA Series I preferred shareholders Dividends to MAA Series I preferred shareholders Distributions to MAALP Series I preferred unitholders Preferred Stock Dividends, Income Statement Impact General Partnership Units Issued In Exchange For Limited Partnership Units General Partnership Units Issued in Exchange for Limited Partnership Units General partner units issued in exchange for limited partner units Accrued expenses and other liabilities Accrued Liabilities Accrued Liabilities, Total DC Litigation [Member] DC Litigation. Disclosure Financial Instruments And Derivatives Effect Of Derivative Instruments On Consolidated Statement Of Operations Details Abstract Disclosure - Financial Instruments and Derivatives - Effect of Derivative Instruments on Consolidated Statement of Operations (Details) [Abstract] Disclosure Financial Instruments And Derivatives Effect Of Derivative Instruments On Consolidated Statement Of Operations Details [Abstract] Accumulated Distributions in Excess of Net Income [Member] Accumulated Distributions in Excess of Net Income [Member] Thereafter Lessee, Operating Lease, Liability, Payments Due After Year Four Amount of lessee's undiscounted obligation for lease payment for operating lease due after fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). Preferred Stock, Shares Authorized Preferred Stock, Shares Authorized Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest, Total Comprehensive loss attributable to noncontrolling interests Operating lease, term of contract Lessor, Operating Lease, Term of Contract Real Estate Acquisitions and Dispositions Mergers, Acquisitions and Dispositions Disclosures [Text Block] Summary of Outstanding Debt Schedule of Debt [Table Text Block] Equity [Line Items] Equity [Line Items] Equity [Line Items] Net Income Available for Common Unitholders Net Income Available For Common Unitholders Net Income Available for Common Unitholders Entity Registrant Name Entity Registrant Name Borrowings Debt Disclosure [Text Block] Development costs Development costs Payments to Acquire in Process Research and Development Other Nonoperating Income (Expense), Total Other non-operating income (expense) Other Nonoperating (Expense) Income Other non-operating income, net Other non-operating income, net Additional Paid in Capital, Total Additional Paid in Capital, Beginning Balance Additional Paid in Capital, Ending Balance Additional Paid in Capital Additional paid-in capital Preferred Units, Preferred Partners' Capital Accounts Preferred Units, Preferred Partners' Capital Accounts Preferred Units, Preferred Partners' Capital Accounts, Total Operating partnership units outstanding Operating Partnership Units Outstanding Operating Partnership Units, Outstanding Consolidated Entities [Domain] Income tax expense Income Tax Expense (Benefit) Income Tax Expense (Benefit), Total Income tax (expense) benefit Measurement Frequency Measurement Frequency [Axis] Percentage of Rental Revenue and Other Income From Non-leasing Activities Percentageof Rental Revenueand Other Income From Nonleasing Activities Percentage of Rental Revenue and Other Income From Non-leasing Activities Disclosure Assets For Reportable Segment [Abstract] Disclosure - Assets for Reportable Segment [Abstract] Net Income (Loss) Allocated to Limited Partners Net income (loss) Proceeds from Issuance of Common Stock Proceeds from issuances of common units Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding General Partners' Capital Account [Member] General Partners Capital Account [Member] General Partners' Capital Account [Member] Net Income (Loss) Attributable to Parent, Diluted, Total Net Income (Loss) Attributable to Parent, Diluted Net income attributable to noncontrolling interests Parent LP stockholders equity including portion attributable to noncontrolling interest Parent L P Stockholders Equity Including Portion Attributable To Noncontrolling Interest Total Company’s shareholders’ equity Accumulated other comprehensive loss Accumulated other comprehensive loss Accumulated Other Comprehensive Income (Loss), Net of Tax Accumulated Other Comprehensive Income (Loss), Net of Tax, Total Same Store [Member] Same Store [Member] Same Store [Member] Limited Partner [Member] Limited Partner [Member] Consolidated assets Total assets Total assets Assets Period Properties Stabilized Period Properties Stabilized Period Properties Stabilized Income Statement [Abstract] Noncontrolling interests - consolidated real estate entities Noncontrolling Interest in Joint Ventures Noncontrolling interests - consolidated real estate entities Shareholders Equity Of M A A [Abstract] Shareholders' Equity of MAA [Abstract] Debt instruments Carrying Value DebtInstruments Carrying Value Disclosure DebtInstruments Carrying Value Disclosure Premium, Interest and Debt Expenses Premium, interest and debt expenses. Premium, Interest and Debt Expenses Sale of Stock, Number of Shares Issued in Transaction Common stock shares sold Earnings per common share - diluted: Earnings Per Share, Diluted [Abstract] Earnings per common share - diluted Net income available for MAA common shareholders Earnings Per Share, Diluted Earnings Per Share, Diluted, Total Preferred Stock, Redemption Date Preferred Stock, Redemption Date Dividends on common stock Dividends, Common Stock Dividends, Common Stock, Total City Area Code City Area Code Fixed Rate Debt Senior Notes [Member] Fixed Rate Debt Senior Notes [Member] Fixed Rate Debt Senior Notes [Member] Fixed Rate Debt Senior Notes [Member] Debt Instrument, Face Amount Debt Instrument, Face Amount Debt Instrument, Face Amount Variable Rate Commercial Paper Program Preferred Units, Outstanding Preferred Units, Outstanding Line of credit facility, maximum Borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Business Combination [Line Items] Disclosure Basis Of Presentation And Principles Of Consolidation And Significant Accounting Policies Additional Information Details Abstract Disclosure - Basis of Presentation and Principles of Consolidation and Significant Accounting Policies - Additional Information (Details) [Abstract] Disclosure Basis Of Presentation And Principles Of Consolidation And Significant Accounting Policies Additional Information Details [Abstract] Office Lease [Member] Office Building [Member] Adjustment for net losses reclassified to net income from derivative instruments Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, after Tax Real Estate Investments, Joint Ventures Real Estate Investments, Joint Ventures Litigation Case [Axis] Operating Lease, Weighted Average Remaining Lease Term Operating lease weighted average remaining lease term Real Estate Real Estate [Domain] Capital Disclosure [Line Items] Capital Disclosure [Line Items] [Line Items] for Capital Disclosure [Table] Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Acquisition of noncontrolling interests. Acquisition Of Noncontrolling Interests Acquisition of noncontrolling interest Common Shares Issuable Upon Conversion Of Convertible Stock Common Shares Issuable Upon Conversion Of Convertible Stock Common Shares Issuable upon Conversion of Convertible Stock Preferred Stock Dividends and Other Adjustments, Total Preferred Stock Dividends and Other Adjustments Dividends to MAA Series I preferred shareholders Dividends to MAA Series I preferred shareholders Columbia, SC [Member] Columbia, SC. Columbia Contribution from noncontrolling interest Adjustment for noncontrolling interests in Operating Partnership Noncontrolling Interest, Period Increase (Decrease) Noncontrolling Interest, Period Increase (Decrease), Total Noncontrolling Interest in Operating Partnerships Noncontrolling interests - Operating Partnership units Change in fair value of interest rate derivatives included in AOCI and expected to be reclassified in the next 12 months Derivative Instruments, Gain (Loss) Reclassification from Accumulated OCI to Income, Estimated Net Amount to be Transferred Stock compensation expense Share-Based Payment Arrangement, Noncash Expense Share-based Payment Arrangement, Noncash Expense, Total Number of Units in Real Estate Property Number of units in real estate property Percentage Of Reimbursable Revenue From Leasing Of Apartment Homes Percentage Of Reimbursable Revenue From Leasing Of Apartment Homes Percentage Of Reimbursable Revenue From Leasing Of Apartment Homes Operating Lease, Weighted Average Discount Rate, Percent Operating lease weighted average discount rate M A A L P [Member] M A A L P [Member] MAALP. Net cash used in financing activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation Total Outstanding Debt Notes Payable Notes Payable, Total Secured Debt [Member] Secured Debt [Member] Entity Interactive Data Current Entity Interactive Data Current Income Statement Location Statement of Income Location, Balance [Domain] Fixed Rate Property Mortgages [Member] Fixed Rate Property Mortgages [Member] Fixed rate property mortgages. Cash flows from operating activities: Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract] Real Estate, Type of Property Real Estate, Type of Property [Axis] Operating costs and expenses excluding depreciation and amortization and real estate taxes and insurance. Operating Costs And Expenses Excluding Depreciation And Amortization And Real Estate Taxes And Insurance Operating expenses, excluding real estate taxes and insurance Dividends on common stock, per share Common Stock, Dividends, Per Share, Declared Line of credit facility, current Borrowing capacity Line of Credit Facility, Current Borrowing Capacity Entity Tax Identification Number Entity Tax Identification Number Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] Shareholders' equity: Revenues [Abstract] Segment Information Revenues: Land Land [Member] Long-term Debt, Type Long-Term Debt, Type [Axis] Debt Instrument, Term Debt Instrument, Term Utilities Operating Expense Utilities Utilities Operating Expense, Total Development and capital improvements in progress Construction in Progress, Gross Local Phone Number Local Phone Number Due to general partner Other Liabilities, Current Unsecured delayed draw term loan program [Member] Unsecured Delayed Draw Term Loan Program [Member] Unsecured delayed draw term loan program. Payments of Financing Costs, Total Payments of Financing Costs Payment of deferred financing costs Accumulated Distributions in Excess of Net Income, Total Accumulated Distributions in Excess of Net Income Accumulated distributions in excess of net income Unsecured Senior Notes Due September Two Thousand Twenty Six [Member] Unsecured senior notes due september two thousand twenty six. Unsecured Senior Notes Due September 2026 [Member] Debt Instrument Interest Issue Price Stated Percentage Debt instrument interest issue price stated percentage. Unsecured Senior Notes issue price, Percentage Accounting Policies [Abstract] Capital improvements and other Payments for Capital Improvements Capital improvements and other The amount of preferred stock dividends. Dividends to I Preferred Shareholders Diluted Dividends to MAA Series I preferred shareholders Dividends to MAA Series I preferred shareholders Lessee, Operating Lease, Liability, to be Paid, Year Four Right-of-use Leases, Future Minimum Payments, Due in Four Years 2030 Class of Stock Class of Stock [Domain] Commercial Paper Notes [Member] Commercial Paper [Member] Entity Emerging Growth Company Entity Emerging Growth Company Area of Land Area of land Schedule Of Capital Structure [Table] Schedule Of Capital Structure [Table] Schedule of Capital Structure [Table]