Quarterly report pursuant to Section 13 or 15(d)

Disposition of Properties (Details)

v3.5.0.2
Disposition of Properties (Details) - Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member]
ft² in Thousands, $ in Thousands
 1 Months Ended 9 Months Ended
Sep. 30, 2016
USD ($)
ft²
Jan. 31, 2016
USD ($)
Sep. 30, 2016
USD ($)
ft²
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]      
Square Feet | ft² 199   199
Net proceeds on sale of assets     $ 28,706
Gain on sale     $ 6,305
Sanibel [Member]      
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]      
Square Feet | ft² 199   199
Net proceeds on sale of assets   $ 25,785 $ 25,785
Gain on sale     4,887
Myrtle Beach Hwy 501 [Member]      
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]      
Net proceeds on sale of assets $ 2,921   2,921
Gain on sale     $ 1,418