Inventory (Details) $ in Thousands	9 Months Ended
Sep. 30, 2021 USD ($) home	Sep. 30, 2020 USD ($) home	Dec. 31, 2020 USD ($)
Inventory Disclosure [Abstract]
Properties for sale	$ 170,731		$ 17,153
Properties not available for sale	38,835		7,225
Properties under improvement	225,578		24,780
Inventory	435,144		49,158
Lower of cost or net realizable value write-downs	$ 2,551		$ 29
Number of homes purchased \| home	1,528	253
Additions	$ 790,738	$ 101,759
Number of homes sold \| home	851	370
Value of homes sold	$ 415,110	$ 149,676

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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