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Property Plant and Equipment ("PP&E") - Summary of Property Plant and Equipment (Detail) - USD ($) $ in Thousands | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Home Building |  |
Property, Plant and Equipment [Line Items] |  |
Property, Plant and Equipment, Gross | $ 174,167 | $ 165,525
Finance Lease, Right-of-Use Asset, after Accumulated Amortization | 14,578 | 15,772
Less: accumulated depreciation | (117,188) | (107,739)
Net Homebuilding PP&E | 56,979 | 57,786
Home Building | Office facilities and other |  |
Property, Plant and Equipment [Line Items] |  |
Property, Plant and Equipment, Gross | 39,826 | 39,647
Home Building | Model home furniture and fixtures |  |
Property, Plant and Equipment [Line Items] |  |
Property, Plant and Equipment, Gross | 32,384 | 32,686
Home Building | Production facilities |  |
Property, Plant and Equipment [Line Items] |  |
Property, Plant and Equipment, Gross | 87,379 | 77,420
Mortgage Banking |  |
Property, Plant and Equipment [Line Items] |  |
Net Homebuilding PP&E | 3,658 | 4,544
Mortgage Banking | Office facilities and other |  |
Property, Plant and Equipment [Line Items] |  |
Property, Plant and Equipment, Gross | 15,090 | 14,716
Less: accumulated depreciation | (11,432) | (10,172)
Net Homebuilding PP&E | $ 3,658 | $ 4,544

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