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Supplemental Balance Sheet Information - Additional Information (Detail) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Dec. 31, 2021
Supplemental Balance Sheet Information [Line Items]          
Raw materials and work-in-process inventory $ 1,000   $ 1,000   $ 1,400
Depreciation and amortization $ 300 $ 300 $ 792 $ 1,000  
T2 Owned Instruments in Service [Member]          
Supplemental Balance Sheet Information [Line Items]          
Estimated useful lives (in years)     5 years    
T2 Owned Instruments in Service [Member] | Product [Member]          
Supplemental Balance Sheet Information [Line Items]          
Depreciation expense recorded as a component of cost of product revenue     $ 100 $ 100