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Real Estate Inventories - Summary of Interest Incurred, Capitalized and Expensed (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Real Estate [Abstract]
Interest incurred	$ 91,631	$ 84,264	$ 68,306
Interest capitalized	(91,631)	(84,264)	(68,306)
Interest expensed		0	0
Real Estate Inventory, Capitalized Interest Costs [Roll Forward]
Capitalized interest in beginning inventory	176,348	157,329	140,311
Interest capitalized as a cost of inventory	91,631	84,264	68,306
Interest previously capitalized as a cost of inventory, included in cost of sales	(83,579)	(65,245)	(51,288)
Capitalized interest in ending inventory	$ 184,400	$ 176,348	$ 157,329

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- Definition

Amount of interest costs capitalized disclosed as an adjusting item to interest costs incurred.

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Total interest costs incurred during the period and either capitalized or charged against earnings.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 20
-Section 50
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Amount of the cost of borrowed funds accounted for as interest expense.

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Carrying amount as of the balance sheet date of interest costs that were capitalized to properties under development during the land development and construction period of a project, and which are included in inventory.

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Amount of interest cost charged to cost of sales that had been previously capitalized to inventory.

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The amount of interest capitalized to an operative builder's inventory during the period.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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