Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
ASSETS
Cash and cash equivalents	$ 63,762	$ 61,244
Total assets	6,199,202	6,232,818
LIABILITIES AND EQUITY
Total indebtedness associated with Real Estate portfolio	4,300,000	3,900,000
Total liabilities	4,619,566	4,184,651
Preferred noncontrolling interests/Redeemable Preferred Units	101,537	103,201
Commitments and contingencies (Note 4)
Equity/Partners' Capital:
Perpetual Preferred Stock	125,000	125,000
Common Stock, $0.01 par value, 500,787,260 shares authorized, 157,022,720 and 156,888,381 shares issued/outstanding at June 30, 2017 and December 31, 2016, respectively	1,570	1,569
Additional paid-in capital	3,897,621	4,051,722
Accumulated other comprehensive income	896	1,011
Distributions in excess of earnings	(2,530,585)	(2,385,399)
Total Aimco equity	1,494,502	1,793,903
Noncontrolling interests in consolidated real estate partnerships	(2,609)	151,121
Common noncontrolling interests in Aimco Operating Partnership	(13,794)	(58)
Total equity	1,478,099	1,944,966
Total liabilities and equity	6,199,202	6,232,818
AIMCO PROPERTIES, L.P [Member]
ASSETS
Cash and cash equivalents	63,762	61,244
Total assets	6,199,202	6,232,818
LIABILITIES AND EQUITY
Total liabilities	4,619,566	4,184,651
Preferred noncontrolling interests/Redeemable Preferred Units	101,537	103,201
Commitments and contingencies (Note 4)
Equity/Partners' Capital:
Preferred units	125,000	125,000
General Partner and Special Limited Partner	1,369,502	1,668,903
Limited Partners	(13,794)	(58)
Partners’ capital attributable to the Aimco Operating Partnership	1,480,708	1,793,845
Noncontrolling interests in consolidated real estate partnerships	(2,609)	151,121
Total partners’ capital	1,478,099	1,944,966
Total liabilities and equity	6,199,202	6,232,818
Asset Management [Member]
ASSETS
Net real estate	231,881	245,648
Cash and cash equivalents	18,893	15,423
Restricted cash	30,288	33,501
Other assets	50,878	52,492
LIABILITIES AND EQUITY
Non-recourse property debt, net	229,631	236,426
Accrued liabilities and other	58,641	62,630
Deferred income	15,355	18,452
Asset Management [Member] | AIMCO PROPERTIES, L.P [Member]
ASSETS
Net real estate	231,881	245,648
Cash and cash equivalents	18,893	15,423
Restricted cash	30,288	33,501
Other assets	50,878	52,492
LIABILITIES AND EQUITY
Non-recourse property debt, net	229,631	236,426
Accrued liabilities and other	58,641	62,630
Deferred income	15,355	18,452
Aimco Real Estate [Member]
ASSETS
Buildings and improvements	6,179,005	6,106,298
Land	1,824,672	1,824,819
Total real estate	8,003,677	7,931,117
Accumulated depreciation	(2,468,206)	(2,421,357)
Net real estate	5,535,471	5,509,760
Cash and cash equivalents	44,869	45,821
Restricted cash	39,331	36,405
Other assets	247,591	293,768
LIABILITIES AND EQUITY
Non-recourse property debt, net	3,617,182	3,630,276
Term loan, net	249,040	0
Revolving credit facility borrowings	245,720	17,930
Total indebtedness associated with Real Estate portfolio	4,111,942	3,648,206
Accrued liabilities and other	203,997	218,937
Aimco Real Estate [Member] | AIMCO PROPERTIES, L.P [Member]
ASSETS
Buildings and improvements	6,179,005	6,106,298
Land	1,824,672	1,824,819
Total real estate	8,003,677	7,931,117
Accumulated depreciation	(2,468,206)	(2,421,357)
Net real estate	5,535,471	5,509,760
Cash and cash equivalents	44,869	45,821
Restricted cash	39,331	36,405
Other assets	247,591	293,768
LIABILITIES AND EQUITY
Non-recourse property debt, net	3,617,182	3,630,276
Term loan, net	249,040	0
Revolving credit facility borrowings	245,720	17,930
Total indebtedness associated with Real Estate portfolio	4,111,942	3,648,206
Accrued liabilities and other	$ 203,997	$ 218,937