The following impairment charges were recorded on the following assets based on the difference between the carrying amount of the assets and the estimated fair value (in thousands):


	Three Months Ended September 30,						Nine Months Ended September 30,
	2011			2010			2011			2010

Continuing operations:
Land held for development and undeveloped land (1)		$	23,646		$	2,827		$	23,646		$	2,827
Property marketed for sale (2)			10,224			2,114			11,149			2,350
Investments in real estate joint ventures and partnerships (3)			1,474			-			1,474			15,825
Tax increment revenue bonds and notes (4)			-			-			18,737			-

Total reported in continuing operations			35,344			4,941			55,006			21,002

Discontinued operations:
Property held for sale or sold			14,845			-			17,733			-


Total impairment charges			50,189			4,941			72,739			21,002

Other financial statement captions impacted by impairment:
Equity in loss of real estate joint ventures and partnerships, net			6,912			-			7,022			115
Net loss attributable to noncontrolling interests			(4,459)			-			(4,459)			-


Net impact of impairment charges		$	52,642		$	4,941		$	75,302		$	21,117

(1)

These impairments were prompted by changes in management's plans for these properties, recent comparable market transactions and a change in market conditions.

(2)

These charges resulted from changes in management's plans for these properties, primarily the marketing of these properties for sale.

(3)

Amounts reported in 2011 relate to current market conditions and liquidation plans for the underlying individual joint venture properties. The amount reported in 2010 represents an impairment loss recognized in connection with the revaluation of our 50% equity interest in a development project in Sheridan, Colorado, as a result of our assumption of control of the project as of April 1, 2010. See Note 4 for additional information.

(4)

During 2011, the tax increment revenue bonds were remarketed by the issuer. All of the outstanding bonds were recalled, and new bonds were issued. We recorded an $18.7 million net credit loss on the exchange of bonds associated with our investment in the subordinated tax increment revenue bonds (see Notes 15 and 16 for further information).