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Earnings per Share and per Unit - Reconciliations of Numerator and Denominator in Calculations of Basic and Diluted Earnings per Share and per Unit (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Schedule of Earnings Per Share and Dividends Per Share [Line Items]    
Net income (loss) attributable to Aimco $ (10,186) $ (8,817)
Net income (loss) allocated to Aimco participating securities 0 0
Net income (loss) attributable to Aimco common stockholders $ (10,186) $ (8,817)
Basic weighted-average OP Units outstanding 140,594,000 145,827,000
Diluted OP Unit equivalents outstanding 0 0
Diluted weighted-average OP Units outstanding 140,594,000 145,827,000
Earnings (loss) per share - basic $ (0.07) $ (0.06)
Earnings (loss) per share - diluted $ (0.07) $ (0.06)
Aimco OP L.P. [Member]    
Schedule of Earnings Per Share and Dividends Per Share [Line Items]    
Net income (loss) attributable to Aimco $ (10,740) $ (9,291)
Net income (loss) allocated to Aimco participating securities 0 0
Net income (loss) attributable to Aimco common stockholders $ (10,740) $ (9,291)
Basic weighted-average OP Units outstanding 148,257,000 153,631,000
Diluted OP Unit equivalents outstanding 0 0
Diluted weighted-average OP Units outstanding 148,257,000 153,631,000
Earnings (loss) per share - basic $ (0.07) $ (0.06)
Earnings (loss) per share - diluted $ (0.07) $ (0.06)