Reit Conversion - Additional Information (Detail) (USD $)	1 Months Ended	3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended		3 Months Ended
	Oct. 31, 2012	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013 REIT Conversion [Member]	Sep. 30, 2012 REIT Conversion [Member]	Sep. 30, 2013 REIT Conversion [Member]	Sep. 30, 2012 REIT Conversion [Member]	Dec. 31, 2013 REIT Conversion [Member] Forecast [Member]
Real Estate Properties [Line Items]
Sales price of management rights and intellectual property	$ 210,000,000
Purchase price to the Management Rights	190,000,000
Purchase price IP Rights	20,000,000
Term of management rights for income amortization				65 years
REIT conversion costs		971,000	51,371,000	21,383,000	57,799,000
Employment severance and retention costs						400,000	10,300,000	14,300,000	10,300,000
Professional Fees						100,000	14,000,000	2,100,000	20,100,000
Various Other Transition Costs						500,000	5,800,000	5,000,000	6,100,000
Estimated one time costs related to REIT conversion										1,900,000
Impairment charge				$ 1,908,000	$ 21,287,000		$ 21,300,000		$ 21,300,000