Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
ASSETS
Buildings and improvements	$ 6,967,143	$ 6,868,543
Land	1,869,465	1,869,048
Total real estate	8,836,608	8,737,591
Accumulated depreciation	(2,810,949)	(2,718,284)
Net real estate	6,025,659	6,019,307
Cash and cash equivalents	340,883	142,902
Restricted cash	33,933	34,800
Mezzanine investment	286,472	280,258
Other assets	361,298	351,472
Total assets	7,048,245	6,828,739
LIABILITIES AND EQUITY
Non-recourse property debt, net	4,208,687	4,230,590
Revolving credit facility borrowings	593,845	275,000
Total indebtedness	4,802,532	4,505,590
Accrued liabilities and other	349,099	360,574
Total liabilities	5,151,631	4,866,164
Redeemable preferred OP Units	96,449	97,064
Redeemable noncontrolling interests in consolidated real estate partnership	4,617	4,716
Commitments and contingencies (Note 4)
Equity/Partners' Capital:
Common Stock, $0.01 par value, 510,587,500 shares authorized, 148,700,407 and 148,885,197 shares issued/outstanding at March 31, 2020 and December 31, 2019, respectively	1,487	1,489
Additional paid-in capital	3,488,611	3,497,367
Accumulated other comprehensive income	4,139	4,195
Distributions in excess of earnings	(1,776,782)	(1,722,402)
Total Aimco equity	1,717,455	1,780,649
Noncontrolling interests in consolidated real estate partnerships	(3,409)	(3,296)
Common noncontrolling interests in Aimco Operating Partnership	81,502	83,442
Total equity	1,795,548	1,860,795
Total liabilities and equity	7,048,245	6,828,739
AIMCO Properties, LP [Member]
ASSETS
Buildings and improvements	6,967,143	6,868,543
Land	1,869,465	1,869,048
Total real estate	8,836,608	8,737,591
Accumulated depreciation	(2,810,949)	(2,718,284)
Net real estate	6,025,659	6,019,307
Cash and cash equivalents	340,883	142,902
Restricted cash	33,933	34,800
Mezzanine investment	286,472	280,258
Other assets	361,298	351,472
Total assets	7,048,245	6,828,739
LIABILITIES AND EQUITY
Non-recourse property debt, net	4,208,687	4,230,590
Revolving credit facility borrowings	593,845	275,000
Total indebtedness	4,802,532	4,505,590
Accrued liabilities and other	349,099	360,574
Total liabilities	5,151,631	4,866,164
Redeemable preferred OP Units	96,449	97,064
Redeemable noncontrolling interests in consolidated real estate partnership	4,617	4,716
Commitments and contingencies (Note 4)
Equity/Partners' Capital:
General Partner and Special Limited Partner	1,717,455	1,780,649
Limited Partners	81,502	83,442
Partners’ capital attributable to the Aimco Operating Partnership	1,798,957	1,864,091
Partners' Capital Attributable to Noncontrolling Interest	(3,409)	(3,296)
Total partners’ capital	1,795,548	1,860,795
Total liabilities and equity	$ 7,048,245	$ 6,828,739