Warranties (Schedule Of Changes In Warranty Accrual) (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Warranties [Abstract]
Beginning balance	$ 10,269	$ 3,057	$ 8,531	$ 2,479
Warranty reserves assumed in business combination		6,202	397	6,202
Warranty expense provisions	1,568	1,245	4,789	2,827
Payments	(968)	(710)	(2,688)	(1,458)
Warranty adjustment	(597)	(944)	(757)	(1,200)
Ending balance	$ 10,272	$ 8,850	$ 10,272	$ 8,850
Product warranties			Generally, we provide each homeowner with product warranties covering workmanship and materials for one year from the time of closing, and warranties covering structural systems for eight to 10 years from the time of closing.

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Amount as of the balance sheet date of the aggregate standard product warranty liability. Does not include the balance for the extended product warranty liability.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 460
-SubTopic 10
-Section 50
-Paragraph 8
-Subparagraph (c)(1),(c)(5)
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Amount of increase in the standard product warranty accrual from a business acquisition. Excludes extended product warranties.

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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section 50
-Paragraph 8
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Amount of decrease in the standard product warranty accrual from payments made in cash or in kind to satisfy claims under the terms of the standard product warranty. Excludes extended product warranties.

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Amount of increase (decrease) in the standard product warranty accrual. Excludes extended product warranties.

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Amount of increase in the standard product warranty accrual from warranties issued. Excludes extended product warranties.

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Describes the nature of the product warranty, including the approximate term of the product warranty, how the product warranty arose, and the events or circumstances that would require the warrantor to perform under the product warranty.

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