Discontinued Operations and Real Estate Impairment (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014 properties	Mar. 31, 2013
Real Estate Properties [Line Items]
Debt satisfaction gains, net	$ (3,304)	$ (10,703)
Real Estate Properties Held For Sale	4
Total gross revenues	1,214	4,382
Pre-tax income (loss)	(2,065)	4,045
Discontinued Operation Asset Impairment Charges	2,309	7,344
Impairment of Real Estate	16,400	2,413
Sold Properties [Member]
Real Estate Properties [Line Items]
Aggregate Gross Disposition Price	350	1,900
Number Of Properties Sold		1
Transferred Property [Member]
Real Estate Properties [Line Items]
Number Of Properties Transferred		2
Transfer of Real Estate		23,281
Debt satisfaction gains, net		$ 10,256