Other Assets (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Other Assets
Investment in Verde Realty	$ 5,868	$ 9,376
Lease inducements, net of accumulated amortization of $3,696 and $2,991 in 2011 and 2010, respectively	12,219	11,899
FF&E and Leasehold Improvements, Net of Accumulated Depreciation of $17814 and $16,117 in 2011 and 2010, Respectively	4,736	4,673
Prepaid expenses and other assets	2,168	2,296
Loan closing costs, net of accumulated amortization of $4026 and $3,109 in 2011 and 2010, respectively	1,435	2,703
Predevelopment costs and earnest money	581	7,039
Intangible Assets:
In-place leases, net of accumulated amortization of $2833 and $2,492 in 2011 and 2010, respectively	16,144	322
Goodwill	5,155	5,430	5,450
Above market leases, net of accumulated amortization of $8845 and $8,741 in 2011 and 2010, respectively	4,414	526
Total Other Assets	$ 52,720	$ 44,264