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Real Estate - Real Estate (Detail) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Real Estate Properties [Line Items]        
Entitled, developed and under development projects $ 361,827 $ 383,026    
Undeveloped land (includes land entitlement) 82,688 80,076    
Carrying value 100,855 129,220    
Accumulated depreciation (28,220) (26,955) (23,438) (24,417)
Net carrying value 72,635 102,265    
Total Real Estate $ 517,150 $ 565,367