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Inventory And Land Held For Sale (Major Components Of Inventory) (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Inventory Disclosure [Abstract]      
Homes under construction $ 1,210,717 $ 1,331,618 $ 1,492,894
Land under development 2,610,501 2,541,829 2,370,876
Land held for future development 815,250 908,366 1,076,588
House and land inventory $ 4,636,468 $ 4,781,813 $ 4,940,358