Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2013

Fair Value, Assets Measured on Recurring Basis [Table Text Block]

The following are fair value measurements recorded on a recurring basis at March 31, 2013 and December 31, 2012, respectively (in thousands):



		Fair Value Measurements as of March 31, 2013
				Quoted Prices in Active Markets for Identical Assets	Significant Other Observable Inputs		Significant Unobservable Inputs
Assets		Balance		(Level 1)	(Level 2)		(Level 3)
Trading securities held in trust	$	24,495		24,495	—		—
Interest rate derivatives		7,679		—	7,685		(6	)
Total	$	32,174		24,495	7,685		(6	)

Liabilities
Interest rate derivatives	$	(64	)	—	(65	)	1



		Fair Value Measurements as of December 31, 2012
				Quoted Prices in Active Markets for Identical Assets	Significant Other Observable Inputs		Significant Unobservable Inputs
Assets		Balance		(Level 1)	(Level 2)		(Level 3)
Trading securities held in trust	$	23,429		23,429	—		—
Interest rate derivatives		4,307		—	4,412		(105	)
Total	$	27,736		23,429	4,412		(105	)

Liabilities
Interest rate derivatives	$	(76	)	—	(77	)	1

Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Table Text Block]

The following are fair value measurements recorded on a nonrecurring basis as of December 31, 2012 (in thousands):

Fair Value Measurements as of December 31, 2012

Quoted Prices in Active Markets for Identical Assets

Significant Other Observable Inputs

Significant Unobservable Inputs

Total Gains (Losses) ⁽¹⁾

Assets

Balance

(Level 1)

(Level 2)

(Level 3)

Long-lived assets held and used

Operating and development properties

49,673

—

49,673

(54,500

)

⁽¹⁾ Excludes impairments for properties sold during the year ended December 31, 2012.

Ranges Of Key Inputs Used In Determining The Fair Value Of Real Estate [Table Text Block]

The following are ranges of key inputs used in determining the fair value of real estate measured using Level 3 inputs as of December 31, 2012:



	2012
	Low		High
Overall cap rates	8.3	%	8.5	%
Rental growth rates	(8.3	)%	2.5	%
Discount rates	10.5	%	10.5	%
Terminal cap rates	8.8	%	8.8	%

- Definition

Tabular disclosure of assets and liabilities by class, including financial instruments measured at fair value that are classified in shareholders' equity, if any, that are measured at fair value on a nonrecurring basis in periods after initial recognition (for example, impaired assets). Disclosures may include, but are not limited to: (a) the fair value measurements recorded and the reasons for the measurements and (b) the level within the fair value hierarchy in which the fair value measurements are categorized in their entirety (levels 1, 2, 3).

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- Definition

Tabular disclosure of assets, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, by class that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3).

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