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Real Estate (Discontinued Operations) (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Sep. 30, 2013
Sep. 30, 2012
Real Estate [Abstract]        
Revenues $ 1,483 $ 2,248 $ 4,955 $ 10,851
Total expenses (745) (1,974) (2,779) (7,516)
Impairment of assets (524) (4,808) (920) (21,429)
Income (loss) from discontinued operations $ 214 $ (4,534) $ 1,256 $ (18,094)