Inventory (Details) - USD ($) $ in Thousands	6 Months Ended
Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Inventory Disclosure [Abstract]
Properties for sale	$ 90,391		$ 17,153
Properties not available for sale	45,132		7,225
Properties under improvement	113,480		24,780
Inventory	249,003		49,158
Lower of cost or net realizable value write-downs	862		$ 29
Additions	410,960	$ 70,052
Homes sold	$ 213,921	$ 133,172

Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.

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