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Property and Equipment (Parenthetical) (Detail) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Property, Plant and Equipment [Line Items] |  |  |
Property and equipment, gross | [1] | $ 3,996 | $ 22,434
Fully Depreciated Fixed Assets |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Property and equipment, gross |  |  | $ 13,600
[1] | Includes the original cost of fully depreciated fixed assets which was $13.6 million at December 31, 2022.

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