Acquisitions - Additional Information (Detail) (USD $)	3 Months Ended	12 Months Ended
	Sep. 30, 2011	Dec. 31, 2013 integer	Dec. 31, 2012 integer	Dec. 31, 2011
Business Acquisition [Line Items]
Number of acquired site property			1,765	30,129
Business Acquisition, Purchase Price			$ 25,000,000	$ 1,500,000,000
Number of closed acquisition properties				75
Term loan financing proceeds		0	0	200,000,000
New mortgage notes payable financing proceeds	200,000,000	375,500,000	159,500,000	200,000,000
Number of properties used as a pledge		147	170
Debt, minimum interest rate		3.90%		0.00%
Debt, maximum interest rate		8.90%		0.00%
Amortization of Intangible Assets		$ 1,940,000	$ 45,122,000	$ 28,479,000
Minimum
Business Acquisition [Line Items]
Debt Instrument Maturity Year		2014		2012
Maximum
Business Acquisition [Line Items]
Debt Instrument Maturity Year		2038		2023
Common Stock
Business Acquisition [Line Items]
Stock issued for the acquisition properties, share		0	0	3,416,552
Series B Subordinated Non-Voting Cumulative Redeemable Preferred Stock
Business Acquisition [Line Items]
Stock issued for the acquisition properties, share		0	0	3,480,000
R V Resort [Member]
Business Acquisition [Line Items]
Number of acquired portfolio			2