Fair Value Measurements and Disclosures (Tables)

12 Months Ended

Dec. 31, 2012

Fair value of the company's marketable securities

The following table sets forth the fair value of our marketable securities as of December 31, 2012 and 2011 :



	Fair Value (Level 1) ⁽¹⁾
	2012		2011
Description	(in thousands)
Marketable securities ⁽²⁾	$	7,435	$	5,691

_______________

(1) Based on quoted prices in active markets for identical securities.

(2) The marketable securities are held in a limited rabbi trust.

Fair Value Adjustment Of Marketable Securities And Deferred Compensation Plan Liability [Table Text Block]

The following table sets forth the net gain (loss) on marketable securities recorded during the years ended December 31, 2012, 2011, and 2010:



Description	December 31, 2012		December 31, 2011			December 31, 2010
	(in thousands)
Net gain (loss) on marketable securities	$	723	$	(153	)	$	435

Carrying value and fair value of company's remaining financial assets and liabilities

The following table sets forth the carrying value and the fair value of our other financial instruments as of December 31, 2012 and 2011:



	December 31,
	2012				2011
	Carrying Value		Fair Value		Carrying Value		Fair Value
	(in thousands)

Liabilities
Secured debt ⁽¹⁾	$	561,096	$	591,993	$	351,825	$	367,402
Exchangeable senior notes, net⁽¹⁾	163,944		181,223		306,892		320,919
Unsecured debt, net ⁽²⁾	1,130,895		1,254,047		980,569		1,011,982
Unsecured line of credit ⁽¹⁾	185,000		185,049		182,000		182,299

_______________

(1) Fair value calculated using Level II inputs which are based on model-derived valuations in which significant inputs and significant value drivers are observable in active markets.

(2) Fair value calculated primarily using Level I inputs which are based on quoted prices for identical instruments in active markets. The carrying value and fair value of the Level I instruments was $653.0 million and $573.0 million, respectively, as of December 31, 2012. The carrying value and fair value of the Level I instruments at December 31, 2011, was $897.6 million and $923.1 million, respectively. The carrying value and fair value of the Level II instruments was $601.0 million and $558.0 million, respectively, as of December 31, 2012. The carrying value and fair value of the Level II instruments at December 31, 2011, was $83.0 million and $88.9 million, respectively.

- 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

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-Name Statement of Financial Accounting Standard (FAS)

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- Definition

Tabular disclosure of the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments, assets, and liabilities. Such certain disclosures about the financial instruments, assets, and liabilities include: (1) the fair value of the required items together with their carrying amounts (as appropriate) and (2) the methodology and assumptions used in developing such estimates of fair value.

+ References

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

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-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.

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