Annual report pursuant to Section 13 and 15(d)

Mortgage Notes Payable and Line of Credit - Company's Mortgage Notes Payable and Line of Credit (Parenthetical) (Detail)

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Mortgage Notes Payable and Line of Credit - Company's Mortgage Notes Payable and Line of Credit (Parenthetical) (Detail)
12 Months Ended
Dec. 31, 2014
Debt Disclosure [Abstract]  
Weighted average interest rate on all debt outstanding 5.11%us-gaap_DebtWeightedAverageInterestRate
Libor rate description One month LIBOR was approximately 0.17
Libor rate 0.17%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1