Annual report pursuant to Section 13 and 15(d)

Mortgage Notes Payable, Revolving Credit Facility, and Term Loan Facility - Schedule of Principal Payments of Mortgage Notes Payable Narrative (Detail)

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Mortgage Notes Payable, Revolving Credit Facility, and Term Loan Facility - Schedule of Principal Payments of Mortgage Notes Payable Narrative (Detail) - Mortgage Notes Payable - USD ($)
$ in Thousands
Dec. 31, 2017
Dec. 31, 2016
Debt Instrument [Line Items]    
Premiums and discounts, net $ (281) $ 217
Deferred financing costs, net $ (4,830) $ (5,123)