Quarterly report pursuant to Section 13 or 15(d)

Real Estate Transactions (Schedule Of Properties Which Commenced Initial Operations) (Details)

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Real Estate Transactions (Schedule Of Properties Which Commenced Initial Operations) (Details) (USD $)
In Thousands, unless otherwise specified
6 Months Ended
Jun. 30, 2013
item
sqft
14 Sylvan Way [Member]
 
Number of Buildings 1 [1]
Rentable Square Feet 203,506 [1]
Development Costs Incurred by Company $ 50,661 [1]
Development Costs Incurred Per Square Foot 248.94 [1]
Land [Member]
 
Development Costs Incurred by Company 13,100
Leases [Member]
 
Development Costs Incurred by Company $ 4,300
[1] Development costs included approximately $13.1 million in land costs and $4.3 million in leasing costs. Amounts are as of June 30, 2013.