Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies - Summary of Quantitative Information Associated with Amounts Recognized in Unaudited Condensed Consolidated Financial Statements for Lease (Detail)

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Commitments and Contingencies - Summary of Quantitative Information Associated with Amounts Recognized in Unaudited Condensed Consolidated Financial Statements for Lease (Detail) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Mar. 01, 2018
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2021
Dec. 31, 2021
Commitments And Contingencies Disclosure [Abstract]            
Operating lease cost   $ 166 $ 166 $ 332 $ 332  
Variable lease cost   8 10 5 9  
Total operating lease expense   174 176 337 341  
Total lease payments $ 7,300 $ 58 $ 57 $ 232 $ 227  
Remaining Lease term (years)   7 years 1 month 2 days   7 years 1 month 2 days   7 years 7 months 2 days
Discount rate   15.00%   15.00%   15.00%