Quarterly report pursuant to Section 13 or 15(d)

Recent Transactions (Acquisitions) (Narrative) (Details)

v3.5.0.2
Recent Transactions (Acquisitions) (Narrative) (Details)
$ in Thousands
6 Months Ended
Jul. 01, 2016
USD ($)
ft²
Jun. 30, 2016
USD ($)
Jun. 30, 2015
USD ($)
Real Estate Properties [Line Items]      
Purchase price of property   $ 51,638 $ 42,881
Hoboken, New Jersey [Member] | Subsequent Event [Member]      
Real Estate Properties [Line Items]      
Area of property (in square feet) | ft² 566,000    
Purchase price of property $ 235,000