Quarterly report pursuant to Section 13 or 15(d)

Discontinued Operations (Schedule Of Properties Identified As Held For Sale) (Details)

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Discontinued Operations (Schedule Of Properties Identified As Held For Sale) (Details) (USD $)
In Thousands, unless otherwise specified
6 Months Ended 0 Months Ended
Jun. 30, 2013
Dec. 31, 2012
Jul. 10, 2013
106 Allen Road [Member]
Jun. 30, 2013
106 Allen Road [Member]
item
sqft
Long Lived Assets Held-for-sale [Line Items]        
Number of Buildings       1 [1]
Rentable Square Feet       132,010 [1]
Gross Book Value       $ 17,895 [1]
Accumulated Depreciation       (5,044) [1]
Net Book Value 12,851 60,863   12,851 [1]
Sales proceeds $ 165,513   $ 18,000  
[1] On July 10, 2013, the Company sold this property for approximately $18.0 million.