Quarterly report pursuant to Section 13 or 15(d)

Commitments And Contingencies (Other) (Narrative) (Details)

v3.8.0.1
Commitments And Contingencies (Other) (Narrative) (Details)
$ in Thousands
3 Months Ended
Mar. 31, 2018
USD ($)
property
Mar. 31, 2017
USD ($)
Aug. 11, 2017
USD ($)
Commitments And Contingencies [Line Items]      
Purchase price of property $ 55,935 $ 22,471  
Notes Receivable 5.85 Interest Rate [Member]      
Commitments And Contingencies [Line Items]      
Notes receivable $ 43,400   $ 44,700
Mortgage loan, maturity date Jul. 01, 2019    
Interest rate 5.85%    
Purchase price of property $ 73,000    
Prepayment of note receivable $ 3,000    
Property Lock-Ups Expired [Member]      
Commitments And Contingencies [Line Items]      
Number of properties | property 77    
Properties aggregate net book value $ 940,000