Inventory And Land Held For Sale (Schedule Of Impaired Communities And Related Charges) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended				6 Months Ended
	Jun. 30, 2012	Mar. 31, 2012	Jun. 30, 2011	Mar. 31, 2011	Jun. 30, 2012	Jun. 30, 2011
Inventory Disclosure [Abstract]
Number of communities impaired	4	4	6	1	4	6
Fair value of communities impaired, net of impairment charges	$ 16,311	$ 7,468	$ 6,665	$ 483	$ 16,311	$ 6,665
Impairment charges	$ 2,796	$ 4,514	$ 3,300	$ 103	$ 7,310	$ 3,403