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MAA Condensed Consolidated Balance Sheets (Parent Company [Member], USD $)
In Thousands, except Share data, unless otherwise specified
Mar. 31, 2015
Dec. 31, 2014
Parent Company [Member]
   
Assets:    
Land $ 889,912us-gaap_Land
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
$ 907,598us-gaap_Land
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Buildings and improvements 6,558,169us-gaap_BuildingsAndImprovementsGross
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
6,763,978us-gaap_BuildingsAndImprovementsGross
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Furniture, fixtures and equipment 203,808us-gaap_FurnitureAndFixturesGross
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
212,850us-gaap_FurnitureAndFixturesGross
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Development and capital improvements in progress 71,119us-gaap_ConstructionInProgressGross
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
80,772us-gaap_ConstructionInProgressGross
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Real Estate Investment Property, at Cost 7,723,008us-gaap_RealEstateInvestmentPropertyAtCost
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
7,965,198us-gaap_RealEstateInvestmentPropertyAtCost
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Less accumulated depreciation (1,268,103)us-gaap_RealEstateInvestmentPropertyAccumulatedDepreciation
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
(1,358,399)us-gaap_RealEstateInvestmentPropertyAccumulatedDepreciation
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Real Estate Investment Property, Net 6,454,905us-gaap_RealEstateInvestmentPropertyNet
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
6,606,799us-gaap_RealEstateInvestmentPropertyNet
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Undeveloped land 47,242us-gaap_LandAvailableForDevelopment
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
47,242us-gaap_LandAvailableForDevelopment
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Corporate properties, net 8,337us-gaap_InventoryRealEstateOther
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
7,988us-gaap_InventoryRealEstateOther
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Investments in real estate joint ventures 1,802us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
1,791us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Assets held for sale 175,292us-gaap_RealEstateHeldforsale
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
36,452us-gaap_RealEstateHeldforsale
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Real estate assets, net 6,687,578maa_RealEstateAssetsNet
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
6,700,272maa_RealEstateAssetsNet
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Cash and cash equivalents 18,331us-gaap_CashAndCashEquivalentsAtCarryingValue
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
25,401us-gaap_CashAndCashEquivalentsAtCarryingValue
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Restricted cash 26,951us-gaap_RestrictedCashAndCashEquivalents
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
28,181us-gaap_RestrictedCashAndCashEquivalents
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Deferred financing costs, net 13,638us-gaap_DeferredFinanceCostsNet
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
17,812us-gaap_DeferredFinanceCostsNet
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Other assets 50,863us-gaap_OtherAssets
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
57,041us-gaap_OtherAssets
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Goodwill 2,321us-gaap_Goodwill
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
2,321us-gaap_Goodwill
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Total assets 6,799,682us-gaap_Assets
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
6,831,028us-gaap_Assets
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Liabilities:    
Secured notes payable 1,429,069us-gaap_SecuredDebt
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
1,592,116us-gaap_SecuredDebt
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Unsecured notes payable 2,050,424us-gaap_UnsecuredDebt
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
1,932,399us-gaap_UnsecuredDebt
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Accounts payable 7,680us-gaap_AccountsPayableCurrentAndNoncurrent
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
8,395us-gaap_AccountsPayableCurrentAndNoncurrent
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Fair market value of interest rate swaps 15,007us-gaap_InterestRateCashFlowHedgeLiabilityAtFairValue
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
13,392us-gaap_InterestRateCashFlowHedgeLiabilityAtFairValue
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Accrued expenses and other liabilities 195,222us-gaap_AccruedLiabilitiesCurrentAndNoncurrent
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
216,478us-gaap_AccruedLiabilitiesCurrentAndNoncurrent
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Security deposits 10,490us-gaap_SecurityDepositLiability
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
10,526us-gaap_SecurityDepositLiability
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Liabilities associated with assets held for sale 32,084us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
0us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Total liabilities 3,739,976us-gaap_Liabilities
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
3,773,306us-gaap_Liabilities
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Redeemable stock 6,309us-gaap_TemporaryEquityCarryingAmountIncludingPortionAttributableToNoncontrollingInterests
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
5,911us-gaap_TemporaryEquityCarryingAmountIncludingPortionAttributableToNoncontrollingInterests
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Shareholders' equity:    
Common stock 753us-gaap_CommonStockValueOutstanding
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
752us-gaap_CommonStockValueOutstanding
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Additional paid-in capital 3,619,976us-gaap_AdditionalPaidInCapital
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
3,619,270us-gaap_AdditionalPaidInCapital
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Accumulated distributions in excess of net income (726,062)us-gaap_AccumulatedDistributionsInExcessOfNetIncome
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
(729,086)us-gaap_AccumulatedDistributionsInExcessOfNetIncome
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Accumulated other comprehensive loss (2,453)us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
(412)us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Total MAA shareholders' equity 2,892,214us-gaap_StockholdersEquity
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
2,890,524us-gaap_StockholdersEquity
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Noncontrolling interest 161,183us-gaap_MinorityInterest
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
161,287us-gaap_MinorityInterest
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Total equity 3,053,397us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
3,051,811us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Total liabilities and equity $ 6,799,682us-gaap_LiabilitiesAndStockholdersEquity
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
$ 6,831,028us-gaap_LiabilitiesAndStockholdersEquity
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Redeemable stock, shares issued and outstanding 81,645us-gaap_TemporaryEquitySharesOutstanding
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
87,818us-gaap_TemporaryEquitySharesOutstanding
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember