Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2012

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

The following are fair value measurements recorded on a recurring basis at December 31, 2012 and 2011, respectively (in thousands):



		Fair Value Measurements at 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 Measurements at December 31, 2011
				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	$	21,713		21,713	—		—

Liabilities:
Interest rate derivatives	$	(37	)	—	(38	)	1

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

The following are fair value measurements recorded on a nonrecurring basis at December 31, 2012 and 2011, respectively (in thousands):

Fair Value Measurements at December 31, 2012

Quoted Prices in Active Markets for Identical Assets

Significant Other Observable Inputs

Significant Unobservable Inputs

Total 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.



		Fair Value Measurements at December 31, 2011
			Quoted Prices in Active Markets for Identical Assets	Significant Other Observable Inputs	Significant Unobservable Inputs	Total Losses⁽¹⁾
Assets		Balance	(Level 1)	(Level 2)	(Level 3)	Total Losses⁽¹⁾
Long-lived assets held and used
Operating and development properties	$	5,520	—	—	5,520	(11,843	)
Investment in real estate partnerships		1,893	—	—	1,893	(4,580	)
Total	$	7,413	—	—	7,413	(16,423	)
⁽¹⁾ Excludes impairments for properties sold during the year ended December 31, 2011.

Fair Value Inputs, Assets, Quantitative Information [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 and 2011:



	2012		2011
	Low	High	Low	High
Overall cap rates	8.3%	8.5%	7.5%	9.0%
Rental growth rates	(8.3)%	2.5%	2.0%	3.0%

Discount rates	10.5%	10.5%	8.5%	10.0%
Terminal cap rates	8.8%	8.8%	8.0%	9.5%

- Definition

Tabular disclosure related to 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 recurring and/or nonrecurring basis in periods after initial recognition. Disclosures 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) as well as transfers between levels 1 and 2.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 157

-Paragraph 6

-Footnote 4

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (a,b,bb)

-URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 157

-Paragraph 32

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 2C

-URI http://asc.fasb.org/extlink&oid=7578670&loc=SL7498348-110258

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 3

-URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19279-110258

Reference 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19190-110258

Reference 7: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 157

-Paragraph 33

-Subparagraph a, b

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

- 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).

+ References+ Details