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Segment Information Segment Information (Land-Related Charges by Segment) (Details) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Jun. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Restructuring Cost and Reserve [Line Items]
Production Related Impairments or Charges	$ 8,133	$ 2,146	$ 125,573	$ 13,973	$ 131,254
Northeast
Restructuring Cost and Reserve [Line Items]
Production Related Impairments or Charges	1,385	1,184		3,068	51,102
Southeast
Restructuring Cost and Reserve [Line Items]
Production Related Impairments or Charges	663	889		2,394	1,847
Florida
Restructuring Cost and Reserve [Line Items]
Production Related Impairments or Charges	262	109		671	8,862
Midwest
Restructuring Cost and Reserve [Line Items]
Production Related Impairments or Charges	4,960	(393)		6,078	7,703
Texas
Restructuring Cost and Reserve [Line Items]
Production Related Impairments or Charges	47	51		317	898
West
Restructuring Cost and Reserve [Line Items]
Production Related Impairments or Charges	425	306		786	56,747
Other homebuilding
Restructuring Cost and Reserve [Line Items]
Production Related Impairments or Charges	$ 391	$ 0		$ 659	$ 4,095

X

- Definition

Nonrecurring impairment charges related to the write-off of production-related equipment and inventory. This tag is used when an Entity charges this cost to cost of goods sold.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.2(a))
-URI http://asc.fasb.org/extlink&oid=115205541&loc=SL114868664-224227

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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