v3.2.0.727
DISPOSITIONS (Details)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2015
USD ($)
Jun. 30, 2014
USD ($)
Jun. 30, 2015
USD ($)
property
Jun. 30, 2014
USD ($)
property
Significant Acquisitions and Disposals        
(Loss) gain on real estate dispositions, net $ 277 $ (184) $ 277 $ 1,253
Impairment of real estate     28,700 8,400
Impairment of long-lived assets to be disposed of     100 1,500
2015 Dispositions        
Significant Acquisitions and Disposals        
Proceeds from disposition of assets, including termination fees     423,300  
Lease termination fees     5,500  
Proceeds deposited in escrow     124,300  
Gain (loss) on disposition of assets     32,600  
Deferred gain on sale of property $ 18,100   $ 18,100  
Deferred gain on sale of property, term     5 years  
2015 Dispositions | Triple-Net Leased Properties        
Significant Acquisitions and Disposals        
Number of real estate properties sold | property     30  
2015 Dispositions | MOB Operations        
Significant Acquisitions and Disposals        
Number of real estate properties sold | property     25  
2014 Dispositions        
Significant Acquisitions and Disposals        
Proceeds from disposition of assets, including termination fees       52,400
Gain (loss) on disposition of assets       16,300
(Loss) gain on real estate dispositions, net       $ 1,500
2014 Dispositions | Triple-Net Leased Properties        
Significant Acquisitions and Disposals        
Number of real estate properties sold | property       8
2014 Dispositions | MOB Operations        
Significant Acquisitions and Disposals        
Number of real estate properties sold | property       4