Fair Value Measurement - Additional Information (Detail)	12 Months Ended
Dec. 31, 2015	Dec. 31, 2014
Minimum
Fair Value Inputs, Liabilities, Quantitative Information
Discount rates used to estimate fair value of mortgages and notes payable	3.97%	3.94%
Maximum
Fair Value Inputs, Liabilities, Quantitative Information
Discount rates used to estimate fair value of mortgages and notes payable	4.05%	4.41%

Interest rate used to find the present value of an amount to be paid or received in the future as an input to measure fair value. For example, but not limited to, weighted average cost of capital (WACC), cost of capital, cost of equity and cost of debt.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)
-URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258

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