Basis of Presentation and Summary of Significant Accounting Policies (Details) (USD $) In Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Temporary equity
Temporary Equity, Beginning balance			$ 20,000
Net income	1,670	(84)	5,012	3,292
Temporary Equity, Ending balance	10,000		10,000
Preferred Noncontrolling Interests in Aimco Operating Partnership [Member]
Temporary equity
Temporary Equity, Beginning balance			83,428
Preferred distributions			(5,012)
Redemption of preferred units			(43)
Repurchase of preferred shares			0
Net income			5,012
Temporary Equity, Ending balance	83,385		83,385
Preferred stock subject to repurchase agreement [Member]
Temporary equity
Temporary Equity, Beginning balance			20,000
Preferred distributions			0
Redemption of preferred units			0
Repurchase of preferred shares			(10,000)
Net income			0
Temporary Equity, Ending balance	$ 10,000		$ 10,000