Quarterly report pursuant to Section 13 or 15(d)

Nature of Business (Details)

v2.4.0.8
Nature of Business (Details) (USD $)
In Thousands, unless otherwise specified
9 Months Ended
Sep. 30, 2014
Dec. 31, 2013
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]    
Percentage of distribution of ordinary taxable income 90.00%  
Disposal Group, Including Discontinued Operation, Sale Price $ 195,161 $ 322,939
Medical Office And Office Building [Member] | Medical Office Portfolio Transactions III & IV [Member]
   
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]    
Disposal Group, Including Discontinued Operation, Sale Price $ 193,600 [1]  
[1] Woodburn Medical Park I and II and Prosperity Medical Center I, II and III.