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Inventory And Land Held For Sale (Land Held For Sale) (Details) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2012
Dec. 31, 2011
Inventory Disclosure [Abstract]    
Land held for sale, gross $ 184,250 $ 190,099
Net realizable value reserves (48,018) (54,792)
Land held for sale, net $ 136,232 $ 135,307