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Commitments and Contingencies - Additional Information (Detail) - USD ($) $ in Thousands | Mar. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Loss Contingencies |  |
Financial guarantee liability | $ 13,916 | $ 14,519
Acquisitions from 2014 through 2018 |  |
Loss Contingencies |  |
Financial guarantee liability | 19,200 |
Construction Loans |  |
Loss Contingencies |  |
Total remaining draws on construction loans committed to fund | $ 400,000 | $ 400,000

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