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Recent Accounting Standards - Additional Information (Detail) - USD ($) $ in Thousands | Mar. 31, 2021 | Jan. 01, 2021 | Dec. 31, 2020
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New Accounting Pronouncements Or Change In Accounting Principle [Line Items] |  |  |
Retained earnings | $ 466,902 |  | $ 575,965
ASU 2019-12 | Revision of Prior Period, Change in Accounting Principle, Adjustment |  |  |
New Accounting Pronouncements Or Change In Accounting Principle [Line Items] |  |  |
Retained earnings |  | $ 0 |

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