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Inventories (Details) (USD $)
In Thousands, unless otherwise specified
May 31, 2012
Nov. 30, 2011
Inventories    
Homes under construction $ 469,880 $ 417,304
Land under development 532,520 587,582
Land held for future development 725,240 726,743
Total $ 1,727,640 $ 1,731,629