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OTHER BALANCE SHEET DETAILS - Summary of Accounts Payable and Accrued Liabilities (Detail) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Balance Sheet Related Disclosures [Abstract]    
Customer Refund Liability, Current $ 0 $ 5,000
Accrued research and development expenses 4,878 4,257
Operating lease liabilities – current 4,026 3,690
Accrued professional fees 869 1,532
Other accrued liabilities 1,804 4,133
Total other accrued liabilities $ 11,577 $ 18,612
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List] Total other accrued liabilities Total other accrued liabilities