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Investments in Unconsolidated Joint Ventures - JV Investments (Details) $ in Thousands	Jun. 30, 2021 USD ($) home	Dec. 31, 2020 USD ($)
Schedule of Equity Method Investments [Line Items]
Percent Ownership	20.00%
Completed Homes | home	1,530
Balances | $	$ 103,634	$ 93,109
Alaska JV
Schedule of Equity Method Investments [Line Items]
Percent Ownership	20.00%
Completed Homes | home	337
Balances | $	$ 23,642	26,020
Institutional Investor JV
Schedule of Equity Method Investments [Line Items]
Percent Ownership	20.00%
Completed Homes | home	901
Balances | $	$ 29,084	34,112
J.P. Morgan JV
Schedule of Equity Method Investments [Line Items]
Percent Ownership	20.00%
Completed Homes | home	292
Balances | $	$ 50,908	$ 32,977

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