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Inventory And Land Held For Sale (Narrative) (Details) $ in Thousands	3 Months Ended	12 Months Ended
	Jun. 30, 2017 USD ($) inactive_community inacitve_lot	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)
Inventory Disclosure [Abstract]
Number of communities | inactive_community	17
Number of lots | inacitve_lot	4,600
Net Realizable Value Adjustments Land Held For Sale Total - land held for sale	$ (81,000)	$ (11,489)	$ (83,576)	$ (1,105)
Carrying value of land parcels	151,000
Inventory adjustments NRV			2,600
Inventory [Line Items]
Land impairments		$ 70,965	88,952	$ 1,074
Impaired Community
Inventory [Line Items]
Entitlement period sought		10 years
Land impairments		$ 59,200
All Other Communities
Inventory [Line Items]
Land impairments		$ 11,800	4,500
May 2017 Strategic Review Communities [Member]
Inventory [Line Items]
Land impairments	$ 31,500
Large Project Impairment [Member]
Inventory [Line Items]
Land impairments			$ 53,000

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Charge against earnings in the period to reduce the current value of land held for sale to its fair value.

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

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Amount of inventory reserves for last-in first-out (LIFO) and other inventory valuation methods.

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Carrying amount net of impairment reserves as of the balance sheet date primarily consisting of deposits for land purchases (including option payments), related acquisition costs, and land which is not expected to be developed in the next two years.

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