CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
ASSETS
Buildings and improvements	$ 1,257,214	$ 995,116
Land	534,285	505,153
Total real estate	1,791,499	1,500,269
Accumulated depreciation	(561,115)	(495,010)
Net real estate	1,230,384	1,005,259
Cash and cash equivalents	233,374	289,582
Restricted cash	11,208	9,153
Mezzanine investment	337,797	307,362
Unconsolidated real estate partnerships	13,025	12,829
Notes receivable	38,029	37,045
Right-of-use lease assets	429,768	92,709
Due from affiliates	4,840	4,333
Other assets, net	110,019	68,905
Total assets	2,434,101	1,840,492
LIABILITIES AND EQUITY
Non-recourse property debt, net	483,137	447,967
Construction loans, net	163,570	0
Notes payable to AIR	534,127	534,127
Total indebtedness	1,180,834	982,094
Deferred tax liabilities	124,747	131,560
Lease liabilities	435,093	86,781
Due to affiliates	15,738	5,897
Accrued liabilities and other	81,662	70,806
Total liabilities	1,838,074	1,277,138
Redeemable noncontrolling interests in consolidated real estate partnerships	33,794	4,263
Commitments and contingencies (Note 14)
Equity:
Common Stock, $0.01 par value, 510,587,500 shares authorized at both December 31, 2021 and 2020, and 149,818,021 and 149,036,263 shares issued and outstanding at December 31, 2021 and 2020, respectively	1,498	1,490
Additional paid-in capital	521,842	515,127
Accumulated deficit	(22,775)	(16,839)
Total Aimco equity	500,565	499,778
Noncontrolling interests in consolidated real estate partnerships	35,213	31,877
Common noncontrolling interests in Aimco Operating Partnership	26,455	27,436
Total equity	562,233	559,091
Total liabilities and equity	2,434,101	1,840,492
Aimco OP L.P. [Member]
ASSETS
Buildings and improvements	1,257,214	995,116
Land	534,285	505,153
Total real estate	1,791,499	1,500,269
Accumulated depreciation	(561,115)	(495,010)
Net real estate	1,230,384	1,005,259
Cash and cash equivalents	233,374	289,582
Restricted cash	11,208	9,153
Mezzanine investment	337,797	307,362
Unconsolidated real estate partnerships	13,025	12,829
Notes receivable	38,029	37,045
Right-of-use lease assets	429,768	92,709
Due from affiliates	4,840	4,333
Other assets, net	110,019	68,905
Total assets	2,434,101	1,840,492
LIABILITIES AND EQUITY
Non-recourse property debt, net	483,137	447,967
Construction loans, net	163,570	0
Notes payable to AIR	534,127	534,127
Total indebtedness	1,180,834	982,094
Deferred tax liabilities	124,747	131,560
Lease liabilities	435,093	86,781
Due to affiliates	15,738	5,897
Accrued liabilities and other	81,662	70,806
Total liabilities	1,838,074	1,277,138
Redeemable noncontrolling interests in consolidated real estate partnerships	33,794	4,263
Commitments and contingencies (Note 14)	0	0
Equity:
General Partner and Special Limited Partner	500,565	499,778
Limited Partners	26,455	27,436
Partners' capital attributable to Aimco Operating Partnership	527,020	527,214
Noncontrolling interests in consolidated real estate partnerships	35,213	31,877
Total partners' capital	562,233	559,091
Total liabilities and equity	2,434,101	1,840,492
Interest Rate Options
ASSETS
Interest rate options	25,657	13,315
Interest Rate Options | Aimco OP L.P. [Member]
ASSETS
Interest rate options	$ 25,657	$ 13,315