Inventory (Details) - USD ($) $ in Thousands	9 Months Ended
Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Inventory Disclosure [Abstract]
Homes for sale	$ 12,089		$ 36,982
Homes not available for sale	907		3,163
Homes under improvement	11,997		34,445
Total Inventory	24,993		74,590
Lower of cost or net realizable value write-downs	56		$ 143
Inventory, Net, Additions	101,759	$ 207,011
Inventory, Net, Homes Sold	$ (149,676)	$ (125,965)

Amount of valuation reserve for inventory.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant