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Income Taxes - Summary of Reconciliation of Company's Unrecognized Tax Benefits (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]      
Unrecognized tax benefit--beginning of year $ 143 $ 163 $ 163
Decreases related to prior period positions 0 (20) 0
Unrecognized tax benefit--end of year $ 143 $ 143 $ 163