Investment in Real Estate - Real Estate Acquired (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Assets acquired
Assets acquired	$ 23,900	$ 122,366	$ 133,393
Other assets	53	1,197	1,025
Total assets acquired	23,953	123,563	134,418
Liabilities assumed
Mortgage notes payable	0	34,559	5,382
Other liabilities	266	6,712	1,777
Total liabilities assumed	266	41,271	7,159
Net assets acquired	23,687	82,292	127,259
Land
Assets acquired
Assets acquired	8,985	66,390	41,022
Buildings and other depreciable property
Assets acquired
Assets acquired	13,948	52,329	87,306
Manufactured homes
Assets acquired
Assets acquired	345	1,086	1,155
In-place leases
Assets acquired
Assets acquired	$ 622	$ 2,561	$ 3,910