Summary of Significant Accounting Policies - Additional Information (Detail) (USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Significant Accounting Policies [Line Items]
Intangible assets and goodwill	$ 12,100,000		$ 12,100,000
Intangible assets	4,300,000		4,300,000
Goodwill	7,800,000		7,800,000
Accumulated amortization of identified intangible assets	2,000,000		1,900,000
Amortization expense for identified intangible assets	1,315,000	159,000
Cash and cash equivalents, restricted cash	5,200,000		5,200,000
Accumulated amortization for deferred financing costs	26,500,000		25,400,000
Fair Value, Inputs, Level 2
Significant Accounting Policies [Line Items]
Mortgage notes payable fair value	2,300,000,000		2,200,000,000
Identified Intangible Assets
Significant Accounting Policies [Line Items]
Amortization expense for identified intangible assets	$ 100,000	$ 100,000
New Manufactured Home [Member]
Significant Accounting Policies [Line Items]
Property, Plant and Equipment, Useful Life	25 years
Minimum [Member] | Used Manufactured Home [Member]
Significant Accounting Policies [Line Items]
Property, Plant and Equipment, Useful Life	10 years
Maximum [Member] | Used Manufactured Home [Member]
Significant Accounting Policies [Line Items]
Property, Plant and Equipment, Useful Life	25 years