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Investment in Joint Venture Arrangements Investment in Joint Venture Arrangements Balance Sheet Information (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017
Equity Method Investments and Joint Ventures [Abstract] |  |
Single-family lots, land and land development costs (a) (b) | $ 11,182 | $ 13,289
Other assets | 938 | 5,143
Total assets | 12,120 | 18,432
Notes payable | 2,318 | 261
Other liabilities | 599 | 1,544
Total liabilities | 2,917 | 1,805
Company’s equity (a) (b) | 2,525 | 8,328
Other equity | 6,678 | 8,299
Total partners’ equity | 9,203 | 16,627
Total liabilities and partners’ equity | 12,120 | 18,432
Reduction of impairment relating to joint venture arrangements | (49) | 1,733
Company's investment in joint development or similar agreements | $ 33,296 | $ 13,930

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