Other Commitments And Contingencies (Details) (USD $)	12 Months Ended
	Dec. 31, 2011 mortgagenotes
Number Of Mortgage Notes Receivable	7
Mortgage notes receivable with commitments	$ 28,500,000
Theatre Properties [Member]
Development Project In Process	1
Commitment to fund project development	5,700,000
Retail Developement Project [Member]
Development Project In Process	1
Public Charter School Property [Member]
Development Project In Process	3
Commitment to fund project development	10,800,000
Louisiana Theatre Properties [Member]
Development Project In Process	4
Economic development revenue bond annual fees percentage	1.75%
Economic development revenue bond term (in years)	30
Deferred assets related to guarantee	3,200,000
Deferred liabilities related to guarantee	3,200,000
Loss contingency	$ 0