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Segment Information (Equity in (earnings) loss of unconsolidated entities) (Details) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Equity in (earnings) loss of unconsolidated entities:      
Equity in (earnings) loss of unconsolidated entities $ (4,059) $ (3,296) $ (2,911)
Northeast [Member]
      
Equity in (earnings) loss of unconsolidated entities:      
Equity in (earnings) loss of unconsolidated entities (4) 15 (209)
Southeast [Member]
      
Equity in (earnings) loss of unconsolidated entities:      
Equity in (earnings) loss of unconsolidated entities 0 0 0
Florida [Member]
      
Equity in (earnings) loss of unconsolidated entities:      
Equity in (earnings) loss of unconsolidated entities 0 0 (1,326)
Texas [Member]
      
Equity in (earnings) loss of unconsolidated entities:      
Equity in (earnings) loss of unconsolidated entities 0 0 0
North [Member]
      
Equity in (earnings) loss of unconsolidated entities:      
Equity in (earnings) loss of unconsolidated entities (1,497) (121) (1,580)
Southwest [Member]
      
Equity in (earnings) loss of unconsolidated entities:      
Equity in (earnings) loss of unconsolidated entities (1,137) (2,561) 197
Other Homebuilding [Member]
      
Equity in (earnings) loss of unconsolidated entities:      
Equity in (earnings) loss of unconsolidated entities (1,235) (527) 75
Homebuilding [Member]
      
Equity in (earnings) loss of unconsolidated entities:      
Equity in (earnings) loss of unconsolidated entities (3,873) (3,194) (2,843)
Financial Services [Member]
      
Equity in (earnings) loss of unconsolidated entities:      
Equity in (earnings) loss of unconsolidated entities $ (186) $ (102) $ (68)