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Telford Acquisition - Summary of Preliminary Estimate of Trademark Acquired (Detail) - Telford Homes Plc [Member] - USD ($) $ in Thousands | Oct. 01, 2019 | Dec. 31, 2019
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Business Acquisition [Line Items] |  |
Amount Assigned at Acquisition Date | $ 26,749 |
Trademarks [Member] |  |
Business Acquisition [Line Items] |  |
Amortization Period | 20 years |
Amount Assigned at Acquisition Date | $ 26,749 |
Accumulated Amortization and Foreign Currency Translation |  | $ 1,725
Net Carrying Value |  | $ 28,474

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