Quarterly report pursuant to Section 13 or 15(d)

Mortgage Notes Payable (Details)

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Mortgage Notes Payable (Details) - USD ($)
$ in Thousands
9 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Debt Instrument [Line Items]    
Repayment of mortgage note $ 169,480 $ 51,815
Kenmore Apartments [Member]    
Debt Instrument [Line Items]    
Repayment of mortgage note $ 31,700