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Inventory And Land Held For Sale (Schedule Of Impaired Communities And Related Charges) (Details) (USD $)	3 Months Ended						9 Months Ended
	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Sep. 30, 2010	Jun. 30, 2010	Mar. 31, 2010	Sep. 30, 2011	Sep. 30, 2010
Inventory And Land Held For Sale [Abstract]
Number of Communities Impaired	3	6	1	28	16	10	3	28
Fair Value of Communities Impaired, Net of Impairment Charges	$ 6,400,000	$ 6,700,000	$ 500,000	$ 33,400,000	$ 35,100,000	$ 7,200,000	$ 6,400,000	$ 33,400,000
Impairment of Real Estate	$ 1,494,000	$ 3,300,000	$ 100,000	$ 57,453,000	$ 25,600,000	$ 4,500,000	$ 4,897,000	$ 87,536,000

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Fair value of communities that were impaired during the period, net of impairment charges.

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Number Of Communities Impaired

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- Definition

The charge against earnings in the period to reduce the carrying amount of real property to fair value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 144

-Paragraph 26

-Subparagraph b

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3602-108585



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 360

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6391110&loc=d3e2921-110230

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