Segment Disclosure

9 Months Ended

Sep. 30, 2012

Segment Reporting [Abstract]

Segment Disclosure

Segment Disclosure

At September 30, 2012 we only had one segment, which was our Office Properties segment, since all of our Industrial Properties were classified as held for sale at September 30, 2012 and the results of operations for these properties was included in discontinued operations for the three and nine months ended September 30, 2012 and 2011. The following table, which reconciles total segment assets to total consolidated assets, is presented solely for the purposes of showing the comparative information for our asset composition at September 30, 2012 and December 31, 2011.

	September 30, 2012		December 31, 2011
	(in thousands)
Assets:
Reportable Segment - Office Properties
Land, buildings, and improvements, net	$	3,005,567	$	2,480,338
Undeveloped land and construction in progress	668,058		430,806
Total assets(1)(2)	3,999,595		3,248,661
Non-Reportable Segment - Industrial Properties
Land, buildings, and improvements, net	—		145,043
Total assets(1)(2)	144,597		156,741
Total Segments
Land, buildings, and improvements, net	3,005,567		2,625,381
Undeveloped land and construction in progress	668,058		430,806
Total assets(1)(2)	4,144,192		3,405,402
Reconciliation to Consolidated Assets:
Total assets allocated to segments	$	4,144,192	$	3,405,402
Other unallocated assets:
Cash and cash equivalents	16,113		4,777
Restricted cash	5,884		358
Marketable securities	6,812		5,691
Deferred financing costs, net	18,442		18,368
Prepaid expenses and other assets, net	24,398		12,199
Total consolidated assets	$	4,215,841	$	3,446,795

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(1) Includes land, buildings, and improvements, undeveloped land and construction in progress, real estate assets held for sale, current receivables, deferred rent receivables, deferred leasing costs, and acquisition-related intangible assets, all shown on a net basis.

(2) See Note 13 for the major classes of assets and liabilities related to the properties held for sale at September 30, 2102.