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.