As of March 31, 2013 and December 31, 2012, the gross carrying value of the Company’s Properties was as follows (in thousands):



	March 31, 2013		December 31, 2012
Land	$	641,507	$	662,107
Building and improvements	3,483,888		3,576,065
Tenant improvements	482,495		487,997
	$	4,607,890	$	4,726,169

Acquisitions

The Company did not complete any acquisitions during the three-month period ended March 31, 2013.

Dispositions

On February 25, 2013, the Company sold a portfolio of eight office properties containing 800,546 square feet in Lawrenceville, New Jersey for an aggregate sales price of $121.0 million. These properties, collectively known as "Princeton Pike Corporate Center," were 86.9% occupied as of the date of sale.

The sale of the Princeton Pike Corporate Center is included in discontinued operations (see Note 10).

- Definition

The entire disclosure for certain real estate investment financial statements, real estate investment trust operating support agreements, real estate owned, retail land sales, time share transactions, as well as other real estate related disclosures.

+ References

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

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

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

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Reference 8: http://www.xbrl.org/2003/role/presentationRef

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Reference 10: http://www.xbrl.org/2003/role/presentationRef

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Reference 11: http://www.xbrl.org/2003/role/presentationRef

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+ Details