Debt - Home Segment, Variable Interest Entities Narrative (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Assets	$ 10,695,454	$ 7,486,560
Inventory	3,912,662	491,293
Restricted cash	226,651	75,805
Accounts receivable, net	154,937	69,940
Liabilities	5,354,143	2,744,744
Accrued expenses and other current liabilities	161,459	94,487
Homes
Debt Instrument [Line Items]
Long-term debt	3,400,000	361,200
Variable Interest Entity, Primary Beneficiary
Debt Instrument [Line Items]
Assets	4,200,000	551,200
Inventory	3,900,000	491,300
Restricted cash	53,000	224,800
Accounts receivable, net	78,100	3,900
Liabilities	3,500,000	372,500
Accrued expenses and other current liabilities	$ 55,300	$ 10,800