Supplemental Detail for Certain Components of Consolidated Balance Sheets (Details 2) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Other assets, net
Deferred financing costs, net	$ 22,867	$ 21,323
Notes receivable issued in connection with property sales	18,537	19,078
Prepaid expenses	12,741	11,674
Impounds related to mortgages payable	5,556	5,555
Restricted escrow deposits	5,280	10,158
Corporate assets, net	1,315	1,259
Loans receivable		48,844
Other items	2,914	2,096
Total other assets	74,919	127,133
Credit Facility
Other assets, net
Deferred financing costs, net	5,709	7,146
Mortgages
Other assets, net
Deferred financing costs, net	$ 1,000	$ 1,200