Cleveland Medical Mart Development Project (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Development And Project Management Revenues	$ 35,135	$ 0	$ 108,203	$ 0
Development And Project Management Expenses	33,419	0	101,637	0
Cleveland Medical Mart & Convention Center [Member]
Square Footage Of Real Estate Property			1,000,000
Construction Costs Budgeted			465,000
Annual Net Settled Payments Received			10,000
Annual Obligation to the County			36,000
Commitments to Fund Improvements			$ 11,500
Development and Operating Period			17Y