Quarterly report pursuant to Section 13 or 15(d)

Mortgage Notes Payable and Line of Credit - Summary of Long-Term Mortgages (Detail)

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Mortgage Notes Payable and Line of Credit - Summary of Long-Term Mortgages (Detail) - USD ($)
$ in Thousands
 9 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Debt Instrument [Line Items]    
Debt Issued $ 61,059 $ 33,635
Libor rate description One month LIBOR was approximately 0.19%  
Libor rate 0.19%  
Maturity Date One [Member] | PNC Bank, NA [Member]    
Debt Instrument [Line Items]    
Date of Issuance Mar. 06, 2015  
Issuing Bank PNC Bank, NA  
Debt Issued $ 14,573  
Interest Rate 3.86%  
Maturity Date Apr. 01, 2025  
Amortization Period (months) 300 months  
Maturity Date Two [Member] | FC Bank [Member]    
Debt Instrument [Line Items]    
Date of Issuance May 28, 2015  
Issuing Bank FC Bank  
Debt Issued $ 4,466  
Interest Rate 3.75%  
Maturity Date Jun. 01, 2022  
Amortization Period (months) 85 months  
Maturity Date Three [Member] | Guggenheim Partners [Member]    
Debt Instrument [Line Items]    
Date of Issuance Jun. 16, 2015  
Issuing Bank Guggenheim Partners  
Debt Issued $ 13,000  
Interest Rate 3.99%  
Maturity Date Jul. 01, 2045  
Maturity Date Four [Member] | Synovus Bank [Member]    
Debt Instrument [Line Items]    
Date of Issuance Jun. 29, 2015  
Issuing Bank Synovus Bank  
Debt Issued $ 19,780  
Libor rate description LIBOR + 2.25%  
Maturity Date Jul. 01, 2018  
Libor rate 2.25%  
Maturity Date Five [Member] | Synovus Bank [Member]    
Debt Instrument [Line Items]    
Date of Issuance Jul. 01, 2015  
Issuing Bank Synovus Bank  
Debt Issued $ 1,700  
Libor rate description LIBOR + 2.25%  
Maturity Date Jul. 01, 2018  
Libor rate 2.25%  
Maturity Date Six [Member] | Prudential Mortgage Capital Company [Member]    
Debt Instrument [Line Items]    
Date of Issuance Jul. 15, 2015  
Issuing Bank Prudential Mortgage Capital Company  
Debt Issued $ 7,540  
Interest Rate 4.53%  
Maturity Date Aug. 01, 2022