Summary of Significant Accounting Policies - Narrative (Details)	9 Months Ended
	Sep. 30, 2023 entity $ / shares shares	Dec. 31, 2022 entity shares
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Number of consolidated VIEs | entity	5	7
AIMCO PROPERTIES, L.P
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Units outstanding (in shares) | shares	2,846,524	2,846,574
AIMCO PROPERTIES, L.P | Minimum
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Distributions per annum	1.92%
Distribution made to limited partner, distributions paid, per unit (in dollars per share)	$ 0.48
AIMCO PROPERTIES, L.P | Maximum
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Distributions per annum	8.75%
Distribution made to limited partner, distributions paid, per unit (in dollars per share)	$ 8.00