Investment in Real Estate - Real Estate Acquired (Detail) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Assets acquired
Assets acquired	$ 120,448	$ 23,900	$ 122,366
Other assets	20	53	1,197
Total assets acquired	120,468	23,953	123,563
Liabilities assumed
Mortgage notes payable	22,010	0	34,559
Other liabilities	2,214	266	6,712
Total liabilities assumed	24,224	266	41,271
Net assets acquired	96,244	23,687	82,292
Land
Assets acquired
Assets acquired	60,489	8,985	66,390
Buildings and other depreciable property
Assets acquired
Assets acquired	55,445	13,948	52,329
Manufactured homes
Assets acquired
Assets acquired	67	345	1,086
In-place leases
Assets acquired
Assets acquired	$ 4,447	$ 622	$ 2,561

Business Acquisition, Purchase Price Allocation, Assets [Abstract]

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Business Acquisition, Purchase Price Allocation, Liabilities [Abstract]

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Amount of assets acquired at the acquisition date.

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Amount of other assets expected to be realized or consumed before one year or the normal operating cycle, if longer, acquired at the acquisition date.

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Amount of liabilities due within one year or within the normal operating cycle, if longer, assumed at the acquisition date.

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Amount recognized as of the acquisition date for the identifiable assets acquired in excess of (less than) the aggregate liabilities assumed.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 55
-Paragraph 37
-URI http://asc.fasb.org/extlink&oid=73531372&loc=d3e2207-128464

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The amount of property, plant, and equipment recognized as of the acquisition date.

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