v3.26.1
MAA Equity - Summary of Changes in Total Equity and its Components (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Increase (Decrease) in Stockholders' Equity [Roll Forward]    
Beginning Balance $ 5,819,243  
Net income (loss) 126,611 $ 186,406
Ending Balance 5,690,310  
Mid America Apartment Communities Inc. Shareholders Equity [Member]    
Increase (Decrease) in Stockholders' Equity [Roll Forward]    
Beginning Balance 5,819,243 6,125,434
Net income (loss) 126,611 186,406
Other comprehensive income - derivative instruments 381 429
Issuance and registration of common shares 154 157
Shares repurchased and retired (73,639) (1,302)
Exercise of stock options   38
Redeemable stock fair market value adjustment 2,488 (1,895)
Amortization of unearned compensation 6,259 5,861
Dividends on preferred stock (922) (922)
Dividends on common stock (178,050) (177,157)
Acquisition of noncontrolling interest (10,213)  
Distributions on noncontrolling interests units (4,491) (4,637)
Contributions from noncontrolling interest 2,489 1,058
Ending Balance 5,690,310 6,133,470
Mid America Apartment Communities Inc. Shareholders Equity [Member] | Preferred Stock [Member]    
Increase (Decrease) in Stockholders' Equity [Roll Forward]    
Beginning Balance 9 9
Ending Balance 9 9
Mid America Apartment Communities Inc. Shareholders Equity [Member] | Common Stock [Member]    
Increase (Decrease) in Stockholders' Equity [Roll Forward]    
Beginning Balance 1,166 1,166
Issuance and registration of common shares 1  
Shares repurchased and retired (6)  
Ending Balance 1,161 1,166
Mid America Apartment Communities Inc. Shareholders Equity [Member] | Additional Paid-in Capital [Member]    
Increase (Decrease) in Stockholders' Equity [Roll Forward]    
Beginning Balance 7,401,962 7,417,453
Issuance and registration of common shares 153 157
Shares repurchased and retired (73,633) (1,302)
Exercise of stock options   38
Shares issued in exchange for common units 457 759
Adjustment for noncontrolling interests in Operating Partnership 1,148 (53)
Amortization of unearned compensation 6,259 5,861
Acquisition of noncontrolling interest (4,839)  
Ending Balance 7,331,507 7,422,913
Mid America Apartment Communities Inc. Shareholders Equity [Member] | Accumulated Distributions in Excess of Net Income [Member]    
Increase (Decrease) in Stockholders' Equity [Roll Forward]    
Beginning Balance (1,734,986) (1,469,557)
Net income (loss) 124,359 181,673
Redeemable stock fair market value adjustment 2,488 (1,895)
Dividends on preferred stock (922) (922)
Dividends on common stock (178,050) (177,157)
Ending Balance (1,787,111) (1,467,858)
Mid America Apartment Communities Inc. Shareholders Equity [Member] | Accumulated Other Comprehensive Loss [Member]    
Increase (Decrease) in Stockholders' Equity [Roll Forward]    
Beginning Balance (5,300) (6,940)
Other comprehensive income - derivative instruments 372 418
Ending Balance (4,928) (6,522)
Mid America Apartment Communities Inc. Shareholders Equity [Member] | Noncontrolling Interests - Operating Partnership [Member]    
Increase (Decrease) in Stockholders' Equity [Roll Forward]    
Beginning Balance 141,503 155,409
Net income (loss) 3,121 4,733
Other comprehensive income - derivative instruments 9 11
Shares issued in exchange for common units (457) (759)
Adjustment for noncontrolling interests in Operating Partnership (1,148) 53
Distributions on noncontrolling interests units (4,491) (4,637)
Ending Balance 138,537 154,810
Mid America Apartment Communities Inc. Shareholders Equity [Member] | Noncontrolling Interests - Consolidated Real Estate Entities [Member]    
Increase (Decrease) in Stockholders' Equity [Roll Forward]    
Beginning Balance 14,889 27,894
Net income (loss) (869)  
Acquisition of noncontrolling interest (5,374)  
Contributions from noncontrolling interest 2,489 1,058
Ending Balance $ 11,135 $ 28,952