Basis of Presentation and Summary of Significant Accounting Policies (Details Textual) $ in Thousands	9 Months Ended
	Sep. 30, 2017 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cumulative effect of a change in accounting principle	$ (65,710)
Palazzo Joint Venture - Los Angeles CA [Member] | Aimco Real Estate [Member] | Palazzo Acquisition [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Noncontrolling limited partner interest (percent)	47.00%
Adjustments to additional paid in capital, other	$ 155,600