Other Commitments And Contingencies (Details) (USD $)	3 Months Ended				3 Months Ended	0 Months Ended		3 Months Ended
	Mar. 31, 2013 mortgagenotes	Mar. 31, 2013 Theatre Properties [Member] developmentproject	Mar. 31, 2013 recreationproperties [Member] developmentproject	Mar. 31, 2013 Public Charter School Property Member developmentproject	Mar. 31, 2013 Louisiana Theatre Properties [Member] developmentproject	Oct. 20, 2011 Sullivan County Planned Casino and Resort [Member]	Mar. 07, 2012 Concord Resort [Member]	Mar. 31, 2013 Minimum [Member] Louisiana Theatre Properties [Member]	Mar. 31, 2013 Maximum [Member] Louisiana Theatre Properties [Member]
Development projects in process (in projects)		14	2	4	4
Commitment to fund project development		$ 65,300,000	$ 13,300,000	$ 17,700,000
Economic development revenue bond annual fees percentage								1.75%	4.00%
Economic development revenue bond term					30 years
Deferred assets related to guarantee					11,200,000
Deferred liabilities related to guarantee					11,200,000
Loss contingency					0
Number of Mortgage Notes Receivable (in mortgage notes)	11
Mortgage notes receivable with commitments	38,300,000
Guarantor Obligations, Maximum Exposure, Undiscounted	34,800,000
Loss contingency damages sought, value						$ 800,000,000	$ 1,500,000,000