Basis of Presentation and Summary of Significant Accounting Policies (Tables)

9 Months Ended

Sep. 30, 2016

Schedule of Equity [Line Items]

Reconciliation of consolidated temporary equity accounts

The following table presents a reconciliation of the Aimco Operating Partnership’s Preferred OP Units from December 31, 2015 to September 30, 2016. These amounts are presented within temporary equity in Aimco’s condensed consolidated balance sheets as preferred noncontrolling interests in the Aimco Operating Partnership, and within temporary capital in the Aimco Operating Partnership’s condensed consolidated balance sheets as redeemable preferred units (in thousands).

Balance, December 31, 2015	$	87,926
Distributions to preferred unitholders	(5,276		)
Redemption of preferred units and other	(1,725		)
Issuance of preferred units	17,000
Net income	5,276
Balance, September 30, 2016	$	103,201

Reconciliation of consolidated permanent equity accounts

The following table presents a reconciliation of Aimco’s consolidated permanent equity accounts from December 31, 2015 to September 30, 2016 (in thousands):

	Aimco Equity			Noncontrolling interests in consolidated real estate partnerships			Common noncontrolling interests in Aimco Operating Partnership			Total Equity
Balance, December 31, 2015	$	1,622,391		$	151,365		$	(9,851	)	$	1,763,905
Redemption of preferred stock	(34,791		)	—			—			(34,791		)
Preferred stock dividends	(7,866		)	—			—			(7,866		)
Common dividends and distributions	(155,124		)	(23,564		)	(7,693		)	(186,381		)
Redemptions of common OP Units	—			—			(9,457		)	(9,457		)
Amortization of stock-based compensation cost	6,749			—			—			6,749
Stock option exercises	767			—			—			767
Effect of changes in ownership for consolidated entities (1)	(22,814		)	—			8,941			(13,873		)
Change in accumulated other comprehensive loss	5,605			189			281			6,075
Other	1,987			—			(106		)	1,881
Net income	266,003			22,096			12,499			300,598
Balance, September 30, 2016	$	1,682,907		$	150,086		$	(5,386	)	$	1,827,607

AIMCO PROPERTIES, L.P [Member]

Schedule of Equity [Line Items]

Reconciliation of consolidated permanent equity accounts

	Partners’ capital  attributable to the Aimco Operating Partnership
Balance, December 31, 2015	$	1,612,540
Redemption of Preferred Units from Aimco	(34,791		)
Distributions to preferred units held by Aimco	(7,866		)
Distributions to common units held by Aimco	(155,124		)
Distributions to common units held by Limited Partners	(7,693		)
Redemption of common OP Units	(9,457		)
Amortization of Aimco stock-based compensation cost	6,749
Common OP Units issued to Aimco in connection with Aimco stock option exercises	767
Effect of changes in ownership for consolidated entities	(13,873		)
Change in accumulated other comprehensive loss	5,886
Other	1,881
Net income	278,502
Balance, September 30, 2016	$	1,677,521