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Land and Development (Acquisitions, Dispositions, Impairments) (Details) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2021 USD ($) | Sep. 30, 2021 USD ($) | Jun. 30, 2021 USD ($) | Mar. 31, 2021 USD ($) | Dec. 31, 2020 USD ($) | Sep. 30, 2020 USD ($) | Jun. 30, 2020 USD ($) | Mar. 31, 2020 USD ($) | Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($) item | Dec. 31, 2019 USD ($) item
Real Estate Properties [Line Items] |  |  |  |  |  |  |  |  |  |  |
Equity interest | 51.90% |  |  |  |  |  |  |  | 51.90% |  |
Revenues | $ 50,760 | $ 143,632 | $ 54,254 | $ 59,984 | $ 92,346 | $ 64,221 | $ 45,244 | $ 122,288 | $ 308,630 | $ 324,099 | $ 273,705
Impairment of assets |  |  |  |  |  |  |  |  | 678 | 5,791 | 10,948
Land development revenue |  |  |  |  |  |  |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  | 189,103 | 164,702 | 119,595
Cost of sales expense |  |  |  |  |  |  |  |  | $ 171,961 | 177,727 | 109,663
Land and development asset |  |  |  |  |  |  |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |  |  |  |  |  |  |
Impairment of assets |  |  |  |  |  |  |  |  |  | $ 2,700 |
Impairment of land and development assets, expected sales proceeds |  |  |  |  |  |  |  |  |  |  | 5,300
Impairment of land and development assets, change in business strategy |  |  |  |  |  |  |  |  |  |  | $ 1,100
Number of land and development assets impaired | item |  |  |  |  |  |  |  |  |  | 2 | 2
SAFE |  |  |  |  |  |  |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |  |  |  |  |  |  |
Real estate transaction price |  |  |  |  |  |  |  |  |  |  | $ 34,300
Payments to acquire land and develop asset |  |  |  |  |  |  |  |  |  |  | 7,300
Assumption of loan in acquisition transaction |  |  |  |  |  |  |  |  |  |  | $ 27,000
Other Real Estate Equity Investment Dec 2016 |  |  |  |  |  |  |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |  |  |  |  |  |  |
Equity interest |  |  |  |  |  |  |  |  |  |  | 50.00%

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