Other Operating Income (Details) (USD $) In Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Other Real Estate Operating Revenue [Abstract]
Property operating agreement guaranty revenue	$ 1,824	$ 1,819	$ 3,799	$ 3,710
Interest income on notes receivable	140	205	379	378
Management fee income	38	46	76	90
Other	52	32	104	94
Other operating	$ 2,054	$ 2,102	$ 4,358	$ 4,272